diff --git a/.travis.yml b/.travis.yml
index d068f203614..5fe4d1ccf28 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -41,29 +41,13 @@ addons:
     - petstore.swagger.io
 
 before_install:
-  # install haskell
-  - curl -sSL https://get.haskellstack.org/ | sh
-  - stack upgrade
-  - stack --version
-  # install rust
-  - curl https://sh.rustup.rs -sSf | sh -s -- -y -v
-  # required when sudo: required for the Ruby petstore tests
-  - gem install bundler
-  - npm install -g typescript
-  - npm install -g npm
-  - npm install -g elm
-  - npm config set registry http://registry.npmjs.org/
-  # set python 3.6.3 as default
-  - source ~/virtualenv/python3.6/bin/activate
+
   # to run petstore server locally via docker
   - docker pull swaggerapi/petstore
   - docker run -d -e SWAGGER_HOST=http://petstore.swagger.io -e SWAGGER_BASE_PATH=/v2 -p 80:8080 swaggerapi/petstore
   - docker ps -a
   # Add bats test framework and cURL for Bash script integration tests
-  - sudo add-apt-repository ppa:duggan/bats --yes
-  - sudo apt-get update -qq
-  - sudo apt-get install -qq bats
-  - sudo apt-get install -qq curl
+
   # install perl module
   #- cpanm --local-lib=~/perl5 local::lib && eval $(perl -I ~/perl5/lib/perl5/ -Mlocal::lib)
   #- cpanm Test::Exception Test::More Log::Any LWP::UserAgent JSON URI:Query Module::Runtime DateTime Module::Find Moose::Role
@@ -93,7 +77,7 @@ install:
 
 script:
   # fail fast
-  - set -e
+  - set -ev
   # fail if templates/generators contain carriage return '\r'
   - /bin/bash ./bin/utils/detect_carriage_return.sh
   # fail if generators contain merge conflicts
@@ -102,28 +86,7 @@ script:
   - /bin/bash ./bin/utils/detect_tab_in_java_class.sh
   # run integration tests defined in maven pom.xml
   - mvn --quiet clean install
-  - mvn --quiet verify -Psamples
 after_success:
-  # push to maven repo
-  - if [ $SONATYPE_USERNAME ] && [ -z $TRAVIS_TAG ] && [ "$TRAVIS_PULL_REQUEST" == "false" ]; then
-      if [ "$TRAVIS_BRANCH" = "master" ]; then
-        mvn clean deploy -DskipTests=true -B -U -P release --settings CI/settings.xml;
-        echo "Finished mvn clean deploy for $TRAVIS_BRANCH";
-        pushd .;
-        cd modules/openapi-generator-gradle-plugin;
-        ./gradlew -Psigning.keyId="$SIGNING_KEY" -Psigning.password="$SIGNING_PASSPHRASE" -Psigning.secretKeyRingFile="${TRAVIS_BUILD_DIR}/sec.gpg" -PossrhUsername="${SONATYPE_USERNAME}" -PossrhPassword="${SONATYPE_PASSWORD}" uploadArchives --no-daemon;
-        echo "Finished ./gradlew uploadArchives";
-        popd;
-      elif ([ "$TRAVIS_BRANCH" == "3.1.x" ] || [ "$TRAVIS_BRANCH" == "4.0.x" ]) ; then
-        mvn clean deploy --settings CI/settings.xml;
-        echo "Finished mvn clean deploy for $TRAVIS_BRANCH";
-        pushd .;
-        cd modules/openapi-generator-gradle-plugin;
-        ./gradlew -PossrhUsername="${SONATYPE_USERNAME}" -PossrhPassword="${SONATYPE_PASSWORD}" uploadArchives --no-daemon;
-        echo "Finished ./gradlew uploadArchives";
-        popd;
-      fi;
-    fi;
   ## docker build and push images to DockerHub (openapi-generator-online, openapi-generator-cli)
   - if [ $DOCKER_HUB_USERNAME ]; then 
         read -r MVN_VERSION_FOR_DOCKER_TAG < target/ci/version-for-docker-tag.txt;