diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 889322e2a6a..839e24917d4 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -2,7 +2,7 @@
 
 - [ ] Read the [contribution guidelines](https://github.com/openapitools/openapi-generator/blob/master/CONTRIBUTING.md).
 - [ ] Ran the shell script under `./bin/` to update Petstore sample so that CIs can verify the change. (For instance, only need to run `./bin/{LANG}-petstore.sh` and `./bin/security/{LANG}-petstore.sh` if updating the {LANG} (e.g. php, ruby, python, etc) code generator or {LANG} client's mustache templates). Windows batch files can be found in `.\bin\windows\`.
-- [ ] Filed the PR against the [correct branch](https://github.com/OpenAPITools/openapi-generator/wiki/Git-Branches): `master`, `3.4.x`, `4.0.x`. Default: `master`.
+- [ ] Filed the PR against the [correct branch](https://github.com/OpenAPITools/openapi-generator/wiki/Git-Branches): `master`~~, `3.4.x`, `4.0.x`~~. Default: `master`.
 - [ ] Copied the [technical committee](https://github.com/openapitools/openapi-generator/#62---openapi-generator-technical-committee) to review the pull request if your PR is targeting a particular programming language.
 
 ### Description of the PR
diff --git a/CI/pom.xml.bash b/CI/pom.xml.bash
deleted file mode 100644
index f450c15702f..00000000000
--- a/CI/pom.xml.bash
+++ /dev/null
@@ -1,942 +0,0 @@
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-    <parent>
-        <groupId>org.sonatype.oss</groupId>
-        <artifactId>oss-parent</artifactId>
-        <version>5</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
-    <groupId>org.openapitools</groupId>
-    <artifactId>openapi-generator-project</artifactId>
-    <packaging>pom</packaging>
-    <name>openapi-generator-project</name>
-    <version>4.0.0-SNAPSHOT</version>
-    <url>https://github.com/openapi-tools/openapi-generator</url>
-    <scm>
-        <connection>scm:git:git@github.com:openapi-tools/openapi-generator.git</connection>
-        <developerConnection>scm:git:git@github.com:openapi-tools/openapi-generator.git</developerConnection>
-        <url>https://github.com/openapi-tools/openapi-generator</url>
-    </scm>
-    <developers>
-        <!-- original author of the project -->
-        <developer>
-            <id>fehguy</id>
-            <name>Tony Tam</name>
-            <email>fehguy@gmail.com</email>
-        </developer>
-        <!-- openapi-generator core team -->
-        <developer>
-            <id>wing328</id>
-            <name>William Cheng</name>
-            <email>wing328hk@gmail.com</email>
-        </developer>
-        <developer>
-            <id>jimschubert</id>
-            <name>Jim Schubert</name>
-            <email>james.schubert@gmail.com</email>
-        </developer>
-        <developer>
-            <id>cbornet</id>
-            <name>Christophe Bornet</name>
-        </developer>
-        <developer>
-            <id>jaz-ah</id>
-            <name>Joseph Zuromski</name>
-        </developer>
-        <developer>
-            <id>ackintosh</id>
-            <name>Akihito Nakano</name>
-        </developer>
-        <developer>
-            <id>JFCote</id>
-            <name>Jean-François Côté</name>
-        </developer>
-        <developer>
-            <id>jmini</id>
-            <name>Jérémie Bresson</name>
-            <email>dev@jmini.fr</email>
-        </developer>
-    </developers>
-    <issueManagement>
-        <system>github</system>
-        <url>https://github.com/openapi-tools/openapi-generator/issues</url>
-    </issueManagement>
-    <licenses>
-        <license>
-            <name>Apache License 2.0</name>
-            <url>http://www.apache.org/licenses/LICENSE-2.0.html</url>
-            <distribution>repo</distribution>
-        </license>
-    </licenses>
-    <build>
-        <sourceDirectory>src/main/java</sourceDirectory>
-        <outputDirectory>target/classes</outputDirectory>
-        <extensions>
-            <extension>
-                <groupId>org.jvnet.wagon-svn</groupId>
-                <artifactId>wagon-svn</artifactId>
-                <version>1.8</version>
-            </extension>
-            <extension>
-                <groupId>org.apache.maven.wagon</groupId>
-                <artifactId>wagon-ssh-external</artifactId>
-                <version>1.0-alpha-6</version>
-            </extension>
-            <extension>
-                <groupId>org.apache.maven.wagon</groupId>
-                <artifactId>wagon-webdav</artifactId>
-                <version>1.0-beta-1</version>
-            </extension>
-        </extensions>
-        <defaultGoal>install</defaultGoal>
-        <directory>target</directory>
-        <finalName>${project.artifactId}-${project.version}</finalName>
-        <plugins>
-            <plugin>
-                <groupId>net.revelc.code</groupId>
-                <artifactId>formatter-maven-plugin</artifactId>
-                <!-- Uncomment this to format before checkstyle -->
-                <!-- <executions>
-                    <execution>
-                        <id>format</id>
-                        <phase>validate</phase>
-                        <goals>
-                            <goal>format</goal>
-                        </goals>
-                    </execution>
-                </executions> -->
-                <configuration>
-                    <compilerSource>1.8</compilerSource>
-                    <compilerCompliance>1.8</compilerCompliance>
-                    <compilerTargetPlatform>1.8</compilerTargetPlatform>
-                    <lineEnding>LF</lineEnding>
-                </configuration>
-            </plugin>
-            <!--<plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>2.17</version>
-                <executions>
-                    <execution>
-                        <id>validate</id>
-                        <phase>validate</phase>
-                        <configuration>
-                            <configLocation>google_checkstyle.xml</configLocation>
-                            Don't include generated sources a la http://stackoverflow.com/a/30406454
-                            <sourceDirectory>${project.build.sourceDirectory}</sourceDirectory>
-                            <encoding>UTF-8</encoding>
-                            <consoleOutput>true</consoleOutput>
-                            <failsOnError>true</failsOnError>
-                            <linkXRef>false</linkXRef>
-                        </configuration>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <dependencies>
-                    <dependency>
-                        <groupId>com.puppycrawl.tools</groupId>
-                        <artifactId>checkstyle</artifactId>
-                        <version>6.19</version>
-                    </dependency>
-                </dependencies>
-            </plugin>-->
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>${surefire-version}</version>
-                <configuration>
-                    <testNGArtifactName>none:none</testNGArtifactName>
-                    <argLine>-XX:+StartAttachListener</argLine>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>test-testng</id>
-                        <phase>test</phase>
-                        <goals>
-                            <goal>test</goal>
-                        </goals>
-                        <configuration>
-                            <junitArtifactName>none:none</junitArtifactName>
-                            <testNGArtifactName>org.testng:testng</testNGArtifactName>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <artifactId>maven-dependency-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>copy-dependencies</goal>
-                        </goals>
-                        <configuration>
-                            <outputDirectory>${project.build.directory}/lib</outputDirectory>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.6.1</version>
-                <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jar-plugin</artifactId>
-                <version>3.0.2</version>
-                <configuration>
-                    <archive>
-                        <manifestEntries>
-                            <mode>development</mode>
-                            <url>${project.url}</url>
-                            <implementation-version>${project.version}</implementation-version>
-                            <package>org.openapi-tools</package>
-                        </manifestEntries>
-                    </archive>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-site-plugin</artifactId>
-                <version>3.5.1</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-release-plugin</artifactId>
-                <version>2.5.3</version>
-            </plugin>
-
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.0.1</version>
-                <configuration>
-                    <aggregate>true</aggregate>
-                    <source>1.8</source>
-                    <encoding>UTF-8</encoding>
-                    <maxmemory>1g</maxmemory>
-                    <failOnWarnings>true</failOnWarnings>
-                    <excludePackageNames>${javadoc.package.exclude}</excludePackageNames>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>attach-javadocs</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-source-plugin</artifactId>
-                <version>3.0.1</version>
-                <executions>
-                    <execution>
-                        <id>attach-sources</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>jar-no-fork</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-enforcer-plugin</artifactId>
-                <version>1.4.1</version>
-                <executions>
-                    <execution>
-                        <id>enforce-versions</id>
-                        <goals>
-                            <goal>enforce</goal>
-                        </goals>
-                        <configuration>
-                            <rules>
-                                <requireMavenVersion>
-                                    <version>3.2.5</version>
-                                </requireMavenVersion>
-                            </rules>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>net.revelc.code</groupId>
-                    <artifactId>formatter-maven-plugin</artifactId>
-                    <version>0.5.2</version>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-    </build>
-    <profiles>
-        <profile>
-            <id>release-profile</id>
-            <properties>
-                <skipTests>true</skipTests>
-            </properties>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>net.alchim31.maven</groupId>
-                        <artifactId>scala-maven-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <goals>
-                                    <goal>compile</goal>
-                                    <goal>testCompile</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                        <configuration/>
-                    </plugin>
-                    <plugin>
-                        <groupId>org.codehaus.mojo</groupId>
-                        <artifactId>build-helper-maven-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <id>add-source</id>
-                                <phase>prepare-package</phase>
-                                <goals>
-                                    <goal>add-source</goal>
-                                </goals>
-                                <configuration>
-                                    <sources>
-                                        <source>src/main/scala</source>
-                                    </sources>
-                                </configuration>
-                            </execution>
-                        </executions>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-        <profile>
-            <id>release-sign-artifacts</id>
-            <activation>
-                <property>
-                    <name>performRelease</name>
-                    <value>true</value>
-                </property>
-            </activation>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-gpg-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <id>sign-artifacts</id>
-                                <phase>verify</phase>
-                                <goals>
-                                    <goal>sign</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-        <!-- Samples -->
-        <profile>
-            <id>android-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/android/volley</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>bash-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/bash</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>clojure-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>clojure</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/clojure</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>haskell-http-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>haskell-http-client</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/haskell-http-client</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>haskell-http-client-integration-test</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>haskell-http-client</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/haskell-http-client/tests-integration</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-jersey1</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/jersey1</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-jersey2</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/jersey2</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-jersey2-java6</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/jersey2-java6</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-okhttp-gson</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/okhttp-gson</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-okhttp-gson-parcelable</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/okhttp-gson/parcelableModel</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-retrofit</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/retrofit</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-retrofit2</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/retrofit2</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-retrofit2-rx</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/retrofit2rx</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-feign</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/feign</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>javascript-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>javascript</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/javascript</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>scala-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>scala</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/scala</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-msf4j-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/java-msf4/</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-cxf-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-cxf</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-resteasy-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-resteasy/default</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-resteasy-server-joda</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-resteasy/joda</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-resteasy-eap-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-resteasy/eap</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-resteasy-eap-server-joda</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-resteasy/eap-joda</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs/jersey2</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-server-jersey1</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs/jersey1</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-fetch-client-tests-default</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-fetch/tests/default</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-fetch-client-builds-default</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-fetch/builds/default</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-fetch-client-builds-es6-target</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-fetch/builds/es6-target</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-fetch-client-builds-with-npm-version</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-fetch/builds/with-npm-version</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-angularjs-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-angularjs/npm</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-node-npm-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-node/npm</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>python-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/python</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>ruby-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/ruby</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>go-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/go</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>spring-mvc</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/spring-mvc</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>springboot-beanvalidation</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/springboot-beanvalidation</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>springboot-reactive</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/springboot-reactive</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>springboot</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/springboot</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>spring-cloud</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/spring-cloud</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>scalatra-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/scalatra</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-inflector</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/java-inflector</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-undertowr</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/undertow</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>samples</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>samples</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/bash</module>
-            </modules>
-        </profile>
-    </profiles>
-    <modules>
-        <module>modules/openapi-generator</module>
-        <module>modules/openapi-generator-cli</module>
-        <module>modules/openapi-generator-maven-plugin</module>
-        <module>modules/openapi-generator-online</module>
-    </modules>
-    <reporting>
-        <outputDirectory>target/site</outputDirectory>
-        <plugins>
-            <plugin>
-                <groupId>net.alchim31.maven</groupId>
-                <artifactId>scala-maven-plugin</artifactId>
-                <version>${scala-maven-plugin-version}</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jxr-plugin</artifactId>
-                <version>2.5</version>
-                <configuration>
-                    <aggregate>true</aggregate>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-project-info-reports-plugin</artifactId>
-                <version>2.9</version>
-                <reportSets>
-                    <reportSet>
-                        <reports>
-                            <report>project-team</report>
-                        </reports>
-                    </reportSet>
-                </reportSets>
-            </plugin>
-        </plugins>
-    </reporting>
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>junit</groupId>
-                <artifactId>junit</artifactId>
-                <version>${junit-version}</version>
-                <scope>test</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.testng</groupId>
-                <artifactId>testng</artifactId>
-                <version>${testng-version}</version>
-                <scope>test</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.jmockit</groupId>
-                <artifactId>jmockit</artifactId>
-                <version>${jmockit-version}</version>
-                <scope>test</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-    <repositories>
-        <repository>
-            <id>sonatype-snapshots</id>
-            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
-            <snapshots>
-                <enabled>true</enabled>
-            </snapshots>
-        </repository>
-    </repositories>
-    <properties>
-        <swagger-parser-version>2.0.4</swagger-parser-version>
-        <swagger-core-version>2.0.4</swagger-core-version>
-        <scala-version>2.11.1</scala-version>
-        <felix-version>3.4.0-SNAPSHOT</felix-version>
-        <commons-io-version>2.4</commons-io-version>
-        <commons-cli-version>1.2</commons-cli-version>
-        <junit-version>4.8.1</junit-version>
-        <jackson-version>2.8.9</jackson-version>
-        <maven-plugin-version>1.0.0</maven-plugin-version>
-        <commons-lang-version>3.4</commons-lang-version>
-        <slf4j-version>1.7.12</slf4j-version>
-        <scala-maven-plugin-version>3.2.1</scala-maven-plugin-version>
-        <jmustache-version>1.14</jmustache-version>
-        <testng-version>6.9.6</testng-version>
-        <surefire-version>2.19.1</surefire-version>
-        <jmockit-version>1.25</jmockit-version>
-        <reflections-version>0.9.10</reflections-version>
-        <spring-boot-version>2.0.2.RELEASE</spring-boot-version>
-    </properties>
-</project>
diff --git a/CI/pom.xml.ios b/CI/pom.xml.ios
deleted file mode 100644
index d7f0bcba3aa..00000000000
--- a/CI/pom.xml.ios
+++ /dev/null
@@ -1,950 +0,0 @@
-<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-    <parent>
-        <groupId>org.sonatype.oss</groupId>
-        <artifactId>oss-parent</artifactId>
-        <version>5</version>
-    </parent>
-    <modelVersion>4.0.0</modelVersion>
-    <groupId>org.openapitools</groupId>
-    <artifactId>openapi-generator-project</artifactId>
-    <packaging>pom</packaging>
-    <name>openapi-generator-project</name>
-    <version>4.0.0-SNAPSHOT</version>
-    <url>https://github.com/openapitools/openapi-generator</url>
-    <scm>
-        <connection>scm:git:git@github.com:openapitools/openapi-generator.git</connection>
-        <developerConnection>scm:git:git@github.com:openapitools/openapi-generator.git</developerConnection>
-        <url>https://github.com/openapitools/openapi-generator</url>
-    </scm>
-    <developers>
-        <!-- original author of the project -->
-        <developer>
-            <id>fehguy</id>
-            <name>Tony Tam</name>
-            <email>fehguy@gmail.com</email>
-        </developer>
-        <!-- openapi-generator core team -->
-        <developer>
-            <id>wing328</id>
-            <name>William Cheng</name>
-            <email>wing328hk@gmail.com</email>
-        </developer>
-        <developer>
-            <id>jimschubert</id>
-            <name>Jim Schubert</name>
-            <email>james.schubert@gmail.com</email>
-        </developer>
-        <developer>
-            <id>cbornet</id>
-            <name>Christophe Bornet</name>
-        </developer>
-        <developer>
-            <id>jaz-ah</id>
-            <name>Joseph Zuromski</name>
-        </developer>
-        <developer>
-            <id>ackintosh</id>
-            <name>Akihito Nakano</name>
-        </developer>
-        <developer>
-            <id>JFCote</id>
-            <name>Jean-François Côté</name>
-        </developer>
-        <developer>
-            <id>jmini</id>
-            <name>Jérémie Bresson</name>
-            <email>dev@jmini.fr</email>
-        </developer>
-    </developers>
-    <issueManagement>
-        <system>github</system>
-        <url>https://github.com/openapitools/openapi-generator/issues</url>
-    </issueManagement>
-    <licenses>
-        <license>
-            <name>Apache License 2.0</name>
-            <url>http://www.apache.org/licenses/LICENSE-2.0.html</url>
-            <distribution>repo</distribution>
-        </license>
-    </licenses>
-    <build>
-        <sourceDirectory>src/main/java</sourceDirectory>
-        <outputDirectory>target/classes</outputDirectory>
-        <extensions>
-            <extension>
-                <groupId>org.jvnet.wagon-svn</groupId>
-                <artifactId>wagon-svn</artifactId>
-                <version>1.8</version>
-            </extension>
-            <extension>
-                <groupId>org.apache.maven.wagon</groupId>
-                <artifactId>wagon-ssh-external</artifactId>
-                <version>1.0-alpha-6</version>
-            </extension>
-            <extension>
-                <groupId>org.apache.maven.wagon</groupId>
-                <artifactId>wagon-webdav</artifactId>
-                <version>1.0-beta-1</version>
-            </extension>
-        </extensions>
-        <defaultGoal>install</defaultGoal>
-        <directory>target</directory>
-        <finalName>${project.artifactId}-${project.version}</finalName>
-        <plugins>
-            <plugin>
-                <groupId>net.revelc.code</groupId>
-                <artifactId>formatter-maven-plugin</artifactId>
-                <!-- Uncomment this to format before checkstyle -->
-                <!-- <executions>
-                    <execution>
-                        <id>format</id>
-                        <phase>validate</phase>
-                        <goals>
-                            <goal>format</goal>
-                        </goals>
-                    </execution>
-                </executions> -->
-                <configuration>
-                    <compilerSource>1.8</compilerSource>
-                    <compilerCompliance>1.8</compilerCompliance>
-                    <compilerTargetPlatform>1.8</compilerTargetPlatform>
-                    <lineEnding>LF</lineEnding>
-                </configuration>
-            </plugin>
-            <!--<plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>2.17</version>
-                <executions>
-                    <execution>
-                        <id>validate</id>
-                        <phase>validate</phase>
-                        <configuration>
-                            <configLocation>google_checkstyle.xml</configLocation>
-                            Don't include generated sources a la http://stackoverflow.com/a/30406454
-                            <sourceDirectory>${project.build.sourceDirectory}</sourceDirectory>
-                            <encoding>UTF-8</encoding>
-                            <consoleOutput>true</consoleOutput>
-                            <failsOnError>true</failsOnError>
-                            <linkXRef>false</linkXRef>
-                        </configuration>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                    </execution>
-                </executions>
-                <dependencies>
-                    <dependency>
-                        <groupId>com.puppycrawl.tools</groupId>
-                        <artifactId>checkstyle</artifactId>
-                        <version>6.19</version>
-                    </dependency>
-                </dependencies>
-            </plugin>-->
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-surefire-plugin</artifactId>
-                <version>${surefire-version}</version>
-                <configuration>
-                    <testNGArtifactName>none:none</testNGArtifactName>
-                    <argLine>-XX:+StartAttachListener</argLine>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>test-testng</id>
-                        <phase>test</phase>
-                        <goals>
-                            <goal>test</goal>
-                        </goals>
-                        <configuration>
-                            <junitArtifactName>none:none</junitArtifactName>
-                            <testNGArtifactName>org.testng:testng</testNGArtifactName>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <artifactId>maven-dependency-plugin</artifactId>
-                <executions>
-                    <execution>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>copy-dependencies</goal>
-                        </goals>
-                        <configuration>
-                            <outputDirectory>${project.build.directory}/lib</outputDirectory>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.6.1</version>
-                <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jar-plugin</artifactId>
-                <version>3.0.2</version>
-                <configuration>
-                    <archive>
-                        <manifestEntries>
-                            <mode>development</mode>
-                            <url>${project.url}</url>
-                            <implementation-version>${project.version}</implementation-version>
-                            <package>org.openapitools</package>
-                        </manifestEntries>
-                    </archive>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-site-plugin</artifactId>
-                <version>3.5.1</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-release-plugin</artifactId>
-                <version>2.5.3</version>
-            </plugin>
-
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.0.1</version>
-                <configuration>
-                    <aggregate>true</aggregate>
-                    <source>1.8</source>
-                    <encoding>UTF-8</encoding>
-                    <maxmemory>1g</maxmemory>
-                    <failOnWarnings>true</failOnWarnings>
-                    <excludePackageNames>${javadoc.package.exclude}</excludePackageNames>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>attach-javadocs</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-source-plugin</artifactId>
-                <version>3.0.1</version>
-                <executions>
-                    <execution>
-                        <id>attach-sources</id>
-                        <phase>verify</phase>
-                        <goals>
-                            <goal>jar-no-fork</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-enforcer-plugin</artifactId>
-                <version>1.4.1</version>
-                <executions>
-                    <execution>
-                        <id>enforce-versions</id>
-                        <goals>
-                            <goal>enforce</goal>
-                        </goals>
-                        <configuration>
-                            <rules>
-                                <requireMavenVersion>
-                                    <version>3.2.5</version>
-                                </requireMavenVersion>
-                            </rules>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-        <pluginManagement>
-            <plugins>
-                <plugin>
-                    <groupId>net.revelc.code</groupId>
-                    <artifactId>formatter-maven-plugin</artifactId>
-                    <version>0.5.2</version>
-                </plugin>
-            </plugins>
-        </pluginManagement>
-    </build>
-    <profiles>
-        <profile>
-            <id>release-profile</id>
-            <properties>
-                <skipTests>true</skipTests>
-            </properties>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>net.alchim31.maven</groupId>
-                        <artifactId>scala-maven-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <goals>
-                                    <goal>compile</goal>
-                                    <goal>testCompile</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                        <configuration/>
-                    </plugin>
-                    <plugin>
-                        <groupId>org.codehaus.mojo</groupId>
-                        <artifactId>build-helper-maven-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <id>add-source</id>
-                                <phase>prepare-package</phase>
-                                <goals>
-                                    <goal>add-source</goal>
-                                </goals>
-                                <configuration>
-                                    <sources>
-                                        <source>src/main/scala</source>
-                                    </sources>
-                                </configuration>
-                            </execution>
-                        </executions>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-        <profile>
-            <id>release-sign-artifacts</id>
-            <activation>
-                <property>
-                    <name>performRelease</name>
-                    <value>true</value>
-                </property>
-            </activation>
-            <build>
-                <plugins>
-                    <plugin>
-                        <groupId>org.apache.maven.plugins</groupId>
-                        <artifactId>maven-gpg-plugin</artifactId>
-                        <executions>
-                            <execution>
-                                <id>sign-artifacts</id>
-                                <phase>verify</phase>
-                                <goals>
-                                    <goal>sign</goal>
-                                </goals>
-                            </execution>
-                        </executions>
-                    </plugin>
-                </plugins>
-            </build>
-        </profile>
-        <!-- Samples -->
-        <profile>
-            <id>android-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/android/volley</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>bash-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/bash</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>clojure-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>clojure</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/clojure</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>haskell-http-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>haskell-http-client</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/haskell-http-client</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>haskell-http-client-integration-test</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>haskell-http-client</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/haskell-http-client/tests-integration</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-jersey1</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/jersey1</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-jersey2</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/jersey2</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-jersey2-java6</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/jersey2-java6</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-okhttp-gson</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/okhttp-gson</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-okhttp-gson-parcelable</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/okhttp-gson/parcelableModel</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-retrofit</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/retrofit</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-retrofit2</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/retrofit2</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-retrofit2-rx</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/retrofit2rx</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-client-feign</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/java/feign</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>javascript-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>javascript</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/javascript</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>scala-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>scala</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/scala</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-msf4j-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/java-msf4/</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-cxf-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-cxf</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-resteasy-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-resteasy/default</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-resteasy-server-joda</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-resteasy/joda</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-resteasy-eap-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-resteasy/eap</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-resteasy-eap-server-joda</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs-resteasy/eap-joda</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs/jersey2</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>jaxrs-server-jersey1</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/jaxrs/jersey1</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-fetch-client-tests-default</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-fetch/tests/default</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-fetch-client-builds-default</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-fetch/builds/default</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-fetch-client-builds-es6-target</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-fetch/builds/es6-target</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-fetch-client-builds-with-npm-version</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-fetch/builds/with-npm-version</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-angularjs-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-angularjs/npm</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>typescript-node-npm-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/typescript-node/npm</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>python-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/python</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>ruby-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/ruby</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>go-client</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/go</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>spring-mvc</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/spring-mvc</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>springboot-beanvalidation</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/springboot-beanvalidation</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>springboot-reactive</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/springboot-reactive</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>springboot</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/springboot</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>spring-cloud</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/spring-cloud</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>scalatra-server</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/scalatra</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-inflector</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/java-inflector</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>java-undertowr</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>java</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/server/petstore/undertow</module>
-            </modules>
-        </profile>
-        <profile>
-            <id>samples</id>
-            <activation>
-                <property>
-                    <name>env</name>
-                    <value>samples</value>
-                </property>
-            </activation>
-            <modules>
-                <module>samples/client/petstore/swift3/default/SwaggerClientTests</module>
-                <module>samples/client/petstore/swift3/promisekit/SwaggerClientTests</module>
-                <module>samples/client/petstore/swift3/rxswift/SwaggerClientTests</module>
-                <module>samples/client/petstore/swift/default/SwaggerClientTests</module>
-                <module>samples/client/petstore/swift/promisekit/SwaggerClientTests</module>
-                <module>samples/client/petstore/swift/rxswift/SwaggerClientTests</module>
-                <!-- comment out objc tests as it's timing out
-                <module>samples/client/petstore/objc/default/SwaggerClientTests</module>
-                <module>samples/client/petstore/objc/core-data/SwaggerClientTests</module>-->
-            </modules>
-        </profile>
-    </profiles>
-    <modules>
-        <module>modules/openapi-generator</module>
-        <module>modules/openapi-generator-cli</module>
-        <module>modules/openapi-generator-maven-plugin</module>
-        <module>modules/openapi-generator-online</module>
-    </modules>
-    <reporting>
-        <outputDirectory>target/site</outputDirectory>
-        <plugins>
-            <plugin>
-                <groupId>net.alchim31.maven</groupId>
-                <artifactId>scala-maven-plugin</artifactId>
-                <version>${scala-maven-plugin-version}</version>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-jxr-plugin</artifactId>
-                <version>2.5</version>
-                <configuration>
-                    <aggregate>true</aggregate>
-                </configuration>
-            </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-project-info-reports-plugin</artifactId>
-                <version>2.9</version>
-                <reportSets>
-                    <reportSet>
-                        <reports>
-                            <report>project-team</report>
-                        </reports>
-                    </reportSet>
-                </reportSets>
-            </plugin>
-        </plugins>
-    </reporting>
-    <dependencyManagement>
-        <dependencies>
-            <dependency>
-                <groupId>junit</groupId>
-                <artifactId>junit</artifactId>
-                <version>${junit-version}</version>
-                <scope>test</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.testng</groupId>
-                <artifactId>testng</artifactId>
-                <version>${testng-version}</version>
-                <scope>test</scope>
-            </dependency>
-            <dependency>
-                <groupId>org.jmockit</groupId>
-                <artifactId>jmockit</artifactId>
-                <version>${jmockit-version}</version>
-                <scope>test</scope>
-            </dependency>
-        </dependencies>
-    </dependencyManagement>
-    <repositories>
-        <repository>
-            <id>sonatype-snapshots</id>
-            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
-            <snapshots>
-                <enabled>true</enabled>
-            </snapshots>
-        </repository>
-    </repositories>
-    <properties>
-        <swagger-parser-version>2.0.4</swagger-parser-version>
-        <swagger-core-version>2.0.4</swagger-core-version>
-        <scala-version>2.11.1</scala-version>
-        <felix-version>3.4.0-SNAPSHOT</felix-version>
-        <commons-io-version>2.4</commons-io-version>
-        <commons-cli-version>1.2</commons-cli-version>
-        <junit-version>4.8.1</junit-version>
-        <jackson-version>2.8.9</jackson-version>
-        <maven-plugin-version>1.0.0</maven-plugin-version>
-        <commons-lang-version>3.4</commons-lang-version>
-        <slf4j-version>1.7.12</slf4j-version>
-        <scala-maven-plugin-version>3.2.1</scala-maven-plugin-version>
-        <jmustache-version>1.14</jmustache-version>
-        <testng-version>6.9.6</testng-version>
-        <surefire-version>2.19.1</surefire-version>
-        <jmockit-version>1.25</jmockit-version>
-        <reflections-version>0.9.10</reflections-version>
-        <spring-boot-version>2.0.2.RELEASE</spring-boot-version>
-    </properties>
-</project>
diff --git a/README.md b/README.md
index 50e7778ff6a..64c1204f219 100644
--- a/README.md
+++ b/README.md
@@ -2,15 +2,11 @@
 
 <div align="center">
 
-[Master](https://github.com/OpenAPITools/openapi-generator/tree/master) (`3.3.4`): [![Build Status](https://img.shields.io/travis/OpenAPITools/openapi-generator/master.svg?label=Integration%20Test)](https://travis-ci.org/OpenAPITools/openapi-generator)
+[Master](https://github.com/OpenAPITools/openapi-generator/tree/master) (`4.0.0`): [![Build Status](https://img.shields.io/travis/OpenAPITools/openapi-generator/master.svg?label=Integration%20Test)](https://travis-ci.org/OpenAPITools/openapi-generator)
 [![Integration Test2](https://circleci.com/gh/OpenAPITools/openapi-generator.svg?style=shield)](https://circleci.com/gh/OpenAPITools/openapi-generator)
 [![Run Status](https://api.shippable.com/projects/5af6bf74e790f4070084a115/badge?branch=master)](https://app.shippable.com/github/OpenAPITools/openapi-generator)
 [![Windows Test](https://ci.appveyor.com/api/projects/status/github/openapitools/openapi-generator?branch=master&svg=true&passingText=Windows%20Test%20-%20OK&failingText=Windows%20Test%20-%20Fails)](https://ci.appveyor.com/project/WilliamCheng/openapi-generator-wh2wu)
 
-[`4.0.x`](https://github.com/OpenAPITools/openapi-generator/tree/4.0.x) branch: [![Build Status](https://img.shields.io/travis/OpenAPITools/openapi-generator/4.0.x.svg?label=Integration%20Test)](https://travis-ci.org/OpenAPITools/openapi-generator)
-[![Integration Test2](https://circleci.com/gh/OpenAPITools/openapi-generator/tree/4.0.x.svg?style=shield)](https://circleci.com/gh/OpenAPITools/openapi-generator)
-[![Run Status](https://api.shippable.com/projects/5af6bf74e790f4070084a115/badge?branch=4.0.x)](https://app.shippable.com/github/OpenAPITools/openapi-generator)
-[![Windows Test](https://ci.appveyor.com/api/projects/status/github/openapitools/openapi-generator?branch=4.0.x&svg=true&passingText=Windows%20Test%20-%20OK&failingText=Windows%20Test%20-%20Fails)](https://ci.appveyor.com/project/WilliamCheng/openapi-generator-wh2wu)
 </div>
 
 <div align="center">
@@ -83,7 +79,7 @@ The OpenAPI Specification has undergone 3 revisions since initial creation in 20
 
 OpenAPI Generator Version    | Release Date | Notes
 ---------------------------- | ------------ | -----
-4.0.0 (upcoming major release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/openapitools/openapi-generator-cli/4.0.0-SNAPSHOT/)| 20.12.2018 | Major release with breaking changes (with or without fallback)
+4.0.0 (upcoming release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/org/openapitools/openapi-generator-cli/4.0.0-SNAPSHOT/)| 20.12.2018 | Major release with breaking changes (with or without fallback)
 [3.3.4](https://github.com/OpenAPITools/openapi-generator/releases/tag/v3.3.4) (latest stable release) | 30.11.2018 | Bugfix release
 
 OpenAPI Spec compatibility: 1.0, 1.1, 1.2, 2.0, 3.0
diff --git a/bin/utils/release_checkout.rb b/bin/utils/release_checkout.rb
index cbeb7e47ef5..720f139c41e 100755
--- a/bin/utils/release_checkout.rb
+++ b/bin/utils/release_checkout.rb
@@ -1,8 +1,26 @@
-#release_chekcout.rb
+#!/usr/bin/env ruby
+#
+# release_chekcout.rb
+#
 require 'rubygems'
 require 'open-uri'
 require 'net/http'
 
+def check_npmjs
+  print "Checking npmjs... "
+
+  url = "https://www.npmjs.com/package/@openapitools/openapi-generator-cli?activeTab=versions"
+  open(url) do |f|
+    content = f.read
+    if !content.nil? && content.include?($version)
+      puts "[OK]"
+    else
+      puts "[ERROR]"
+      puts "> #{url} not yet updated with #{$version}"
+    end
+  end
+end
+
 def check_homebrew
   print "Checking homebrew forumla ... "
 
@@ -184,6 +202,7 @@ $version = ARGV[0]
 
 puts "Running checkout on OpenAPI Generator release #{$version}"
 
+check_npmjs
 check_homebrew
 check_openapi_generator_jar
 check_openapi_generator_cli_jar