PDP-737: Clean up the gradle home folder

Author: SameeraPriyathamTadikonda

Jenkinsfile

@@ -78,11 +78,13 @@ pipeline {
       }
       steps{
       	sh label:'publish', script: '''#!/bin/bash
-        	export JAVA_HOME=$JAVA_HOME_DIR
-          export GRADLE_USER_HOME=$WORKSPACE/$GRADLE_DIR
-          export PATH=$GRADLE_USER_HOME:$JAVA_HOME/bin:$PATH
-          cp ~/.gradle/gradle.properties $GRADLE_USER_HOME;
-          cd ml-gradle
+        	export JAVA_HOME=$JAVA_HOME_DIR;
+          export GRADLE_USER_HOME=$WORKSPACE/$GRADLE_DIR;
+          export PATH=$GRADLE_USER_HOME:$JAVA_HOME/bin:$PATH;
+          rm -rf $GRADLE_USER_HOME || true;
+          cd ml-gradle;
+          ./gradlew clean;
+          cp ~/.gradle/gradle.properties $GRADLE_USER_HOME/;
           ./gradlew publish
         '''
       }