Hi, I have a problem building Zeppelin from sources. https://zeppelin.apache.org/docs/latest/setup/basics/how_to_build.html says that JDK7 is needed, but pom.xml contains now java.version 1.8.
When I use JDK 7, I get [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project zeppelin-interpreter: Fatal error compiling: invalid target release: 1.8 -> [Help 1] When I use JDK 8, I get INFO] /home/art/src/zeppelin-master/zeppelin-display/src/main/scala:-1: info: compiling [INFO] Compiling 6 source files to /home/art/src/zeppelin-master/zeppelin-display/target/classes at 1572428954441 [DEBUG] use java command with args in file forced : false [DEBUG] plugin jar to add :/home/art/.m2/repository/org/scala-tools/maven-scala-plugin/2.15.2/maven-scala-plugin-2.15.2.jar [DEBUG] cmd: /home/art/local/jdk1.8.0_221/jre/bin/java -classpath /home/art/.m2/repository/org/scala-lang/scala-compiler/2.11.8/scala-compiler-2.11.8.jar:/home/art/.m2/repository/org/scala-lang/scala-library/2.11.4/scala-library-2.11.4.jar:/home/art/.m2/repository/org/scala-lang/scala-library/2.11.6/scala-library-2.11.6.jar:/home/art/.m2/repository/org/scala-lang/scala-library/2.11.8/scala-library-2.11.8.jar:/home/art/.m2/repository/org/scala-lang/modules/scala-parser-combinators_2.11/1.0.4/scala-parser-combinators_2.11-1.0.4.jar:/home/art/.m2/repository/org/scala-lang/modules/scala-xml_2.11/1.0.4/scala-xml_2.11-1.0.4.jar:/home/art/.m2/repository/org/scala-lang/scala-reflect/2.11.8/scala-reflect-2.11.8.jar:/home/art/.m2/repository/org/scala-tools/maven-scala-plugin/2.15.2/maven-scala-plugin-2.15.2.jar -Xbootclasspath/a:/home/art/.m2/repository/org/scala-lang/scala-library/2.11.8/scala-library-2.11.8.jar org_scala_tools_maven_executions.MainWithArgsInFile scala.tools.nsc.Main /tmp/scala-maven-3071075476901874784.args [INFO] <JAVA_HOME>/lib/ext exists, extensions mechanism no longer supported; Use -classpath instead. [ERROR] .Error: Could not create the Java Virtual Machine. [ERROR] Error: A fatal exception has occurred. Program will exit.
