Squashed commit of the following:

commit c5a0d0f7394aa742fa336fff7e7c1d3049761868
Merge: 8c4991ba3e f8ff8c8760
Author: William Cheng <wing328hk@gmail.com>
Date:   Tue Aug 17 18:28:12 2021 +0800

    Merge branch 'mustache-linting' of https://github.com/NathanBaulch/openapi-generator into NathanBaulch-mustache-linting

commit f8ff8c8760
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Thu Aug 5 14:12:47 2021 +1000

    Reorder tags that handle missing values

commit f5d8a33709
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Thu Aug 5 14:08:59 2021 +1000

    Use dot notation where possible

commit 493d14921e
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Thu Aug 5 14:10:49 2021 +1000

    Remove empty tags

commit 32480dc53f
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Thu Aug 5 10:41:58 2021 +1000

    Remove redundant sections

commit a8edabd722
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Wed Aug 4 22:02:22 2021 +1000

    Trim extra EOF new lines

commit e89bd7458e
Author: Nathan Baulch <nathan.baulch@gmail.com>
Date:   Wed Aug 4 21:59:26 2021 +1000

    Trim trailing whitespace

samples/client/petstore/java/webclient/build.gradle

@@ -93,7 +93,7 @@ if(hasProperty('target') && target == 'android') {
        main = System.getProperty('mainClass')
        classpath = sourceSets.main.runtimeClasspath
     }
-    
+
     task sourcesJar(type: Jar, dependsOn: classes) {
         classifier = 'sources'
         from sourceSets.main.allSource
@@ -138,4 +138,3 @@ dependencies {
     implementation "javax.annotation:javax.annotation-api:$javax_annotation_version"
     testImplementation "junit:junit:$junit_version"
 }
-

samples/client/petstore/java/webclient/git_push.sh

@@ -55,4 +55,3 @@ git pull origin master
 # Pushes (Forces) the changes in the local repository up to the remote repository
 echo "Git pushing to https://${git_host}/${git_user_id}/${git_repo_id}.git"
 git push origin master 2>&1 | grep -v 'To https'
-

samples/client/petstore/java/webclient/pom.xml

@@ -64,7 +64,7 @@
             <artifactId>swagger-annotations</artifactId>
             <version>${swagger-annotations-version}</version>
         </dependency>
-        
+
         <!-- @Nullable annotation -->
         <dependency>
             <groupId>com.google.code.findbugs</groupId>