Unable to compile simple Java 10 Java 11 project with Maven

Question

I have a trivial Maven project   src  -- main      -- java          -- module-info java pom xml   pom xml    lt groupId gt org example lt  groupId gt   lt artifactId gt example lt  artifactId gt   lt version gt 1 0-SNAPSHOT lt  version gt   lt packaging gt jar lt  packaging gt   lt name gt example lt  name gt    lt build gt       lt plugins gt           lt plugin gt               lt groupId gt org apache maven plugins lt  groupId gt               lt artifactId gt maven-compiler-plugin lt  artifactId gt               lt version gt 3 7 0 lt  version gt               lt configuration gt                   lt release gt 10 lt  release gt               lt  configuration gt           lt  plugin gt       lt  plugins gt   lt  build gt    When I build the project via mvn -X install -DskipTests true  it fails   org apache maven lifecycle LifecycleExecutionException  Failed to execute goal org apache maven plugins maven-compiler-plugin 3 7 0 testCompile  default-testCompile  on project example  Execution default-testCompile of goal org apache maven plugins maven-compiler-plugin 3 7 0 testCompile failed          at org apache maven lifecycle internal MojoExecutor execute MojoExecutor java 213          at org apache maven lifecycle internal MojoExecutor execute MojoExecutor java 154          at org apache maven lifecycle internal MojoExecutor execute MojoExecutor java 146          at org apache maven lifecycle internal LifecycleModuleBuilder buildProject LifecycleModuleBuilder java 117          at org apache maven lifecycle internal LifecycleModuleBuilder buildProject LifecycleModuleBuilder java 81          at org apache maven lifecycle internal builder singlethreaded SingleThreadedBuilder build SingleThreadedBuilder java 51          at org apache maven lifecycle internal LifecycleStarter execute LifecycleStarter java 128          at org apache maven DefaultMaven doExecute DefaultMaven java 309          at org apache maven DefaultMaven doExecute DefaultMaven java 194          at org apache maven DefaultMaven execute DefaultMaven java 107          at org apache maven cli MavenCli execute MavenCli java 993          at org apache maven cli MavenCli doMain MavenCli java 345          at org apache maven cli MavenCli main MavenCli java 191          at java base jdk internal reflect NativeMethodAccessorImpl invoke0 Native Method          at java base jdk internal reflect NativeMethodAccessorImpl invoke NativeMethodAccessorImpl java 62          at java base jdk internal reflect DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl java 43          at java base java lang reflect Method invoke Method java 564          at org codehaus plexus classworlds launcher Launcher launchEnhanced Launcher java 289          at org codehaus plexus classworlds launcher Launcher launch Launcher java 229          at org codehaus plexus classworlds launcher Launcher mainWithExitCode Launcher java 415          at org codehaus plexus classworlds launcher Launcher main Launcher java 356  Caused by  org apache maven plugin PluginExecutionException  Execution default-testCompile of goal org apache maven plugins maven-compiler-plugin 3 7 0 testCompile failed          at org apache maven plugin DefaultBuildPluginManager executeMojo DefaultBuildPluginManager java 145          at org apache maven lifecycle internal MojoExecutor execute MojoExecutor java 208              20 more Caused by  java lang IllegalArgumentException         at org objectweb asm ClassReader  lt init gt  Unknown Source          at org objectweb asm ClassReader  lt init gt  Unknown Source          at org objectweb asm ClassReader  lt init gt  Unknown Source          at org codehaus plexus languages java jpms AsmModuleInfoParser parse AsmModuleInfoParser java 80          at org codehaus plexus languages java jpms AsmModuleInfoParser getModuleDescriptor AsmModuleInfoParser java 54          at org codehaus plexus languages java jpms LocationManager resolvePaths LocationManager java 83          at org apache maven plugin compiler TestCompilerMojo preparePaths TestCompilerMojo java 281          at org apache maven plugin compiler AbstractCompilerMojo execute AbstractCompilerMojo java 762          at org apache maven plugin compiler TestCompilerMojo execute TestCompilerMojo java 176          at org apache maven plugin DefaultBuildPluginManager executeMojo DefaultBuildPluginManager java 134              21 more   Is there a way to fix this

User · Answer

Boosting your maven-compiler-plugin to 3 8 0 seems to be necessary but not sufficient  If you re still having problems  you should also make sure your JAVA HOME environment variable is set to Java 10  or 11  if you re running from the command line   The error message you get won t tell you this   Or if you re running from an IDE  you need to make sure it is set to run maven with your current JDK

User · Answer

If you are using spring boot then add these tags in pom xml    lt plugin gt       lt groupId gt org springframework boot lt  groupId gt       lt artifactId gt spring-boot-maven-plugin lt  artifactId gt   lt  plugin gt    and    lt properties gt       lt project build sourceEncoding gt UTF-8 lt  project build sourceEncoding gt       lt project reporting outputEncoding gt UTF-8 lt  project reporting outputEncoding gt        lt maven compiler release gt  10 lt  maven compiler release gt   lt  properties gt    You can change java version to 11 or 13 as well in  lt maven compiler release gt  tag   Just add below tags in pom xml   lt properties gt       lt project build sourceEncoding gt UTF-8 lt  project build sourceEncoding gt       lt project reporting outputEncoding gt UTF-8 lt  project reporting outputEncoding gt       lt maven compiler release gt 11 lt  maven compiler release gt   lt  properties gt    You can change the 11 to 10  13 as well to change java version  I am using java 13 which is latest  It works for me

User · Answer

It might not exactly be the same error  but I had a similar one   Check Maven Java Version  Since Maven is also runnig with Java  check first with which version your Maven is running on   mvn --version   grep -i java    It returns      Java version 1 8 0 151  vendor  Oracle   Corporation  runtime  C  tools jdk openjdk1 8   Incompatible version  Here above my maven is running with Java Version 1 8 0 151  So even if I specify maven to compile with Java 11    lt properties gt       lt java version gt 11 lt  java version gt       lt maven compiler source gt   java version  lt  maven compiler source gt       lt maven compiler target gt   java version  lt  maven compiler target gt   lt  properties gt    It will logically print out this error       ERROR  Failed to execute goal   org apache maven plugins maven-compiler-plugin 3 8 0 compile    default-compile  on project efa-example-commons-task  Fatal error   compiling  invalid target release  11 -   Help 1    How to set specific java version to Maven  The logical thing to do is to set a higher Java Version to Maven  e g  Java version 11 instead 1 8    Maven make use of the environment variable JAVA HOME to find the Java Version to run  So change this variable to the JDK you want to compile against  e g  OpenJDK 11    Sanity check  Then run again mvn --version to make sure the configuration has been taken care of   mvn --version   grep -i java   yields     Java version  11 0 2  vendor  Oracle Corporation  runtime  C  tools jdk openjdk11   Which is much better and correct to compile code written with the Java 11 specifications

User · Answer

As of 30Jul  2018 to fix the above issue  one can configure the java version used within maven to any up to JDK 11 and make use of the maven-compiler-plugin 3 8 0 to specify a release of either 9 10 11 without any explicit dependencies    lt plugin gt       lt groupId gt org apache maven plugins lt  groupId gt       lt artifactId gt maven-compiler-plugin lt  artifactId gt       lt version gt 3 8 0 lt  version gt       lt configuration gt           lt release gt 11 lt  release gt    lt  --or  lt release gt 10 lt  release gt -- gt       lt  configuration gt   lt  plugin gt    Note - The default value for source target has been lifted from 1 5 to 1 6 with this version  -- release notes     Edit  30 12 2018   In fact  you can make use of the same version of maven-compiler-plugin while compiling the code against JDK 12 as well    More details and a sample configuration in how to Compile and execute a JDK preview feature with Maven

User · Answer

Alright so for me nothing worked  I was using spring boot with hibernate  The spring boot version was  2 0 1 and I would keep get this error and null pointer exception upon compilation  The issue was with hibernate that needed a version bump  But after that I had some other issues that seemed like the annotation processor was not recognised so I decided to just bump spring from 2 0 1 to 2 1 7-release and everything worked as expected     You still need to add the above plugin tough Hope it helps

User · Answer

Specify maven compiler source and target versions   1  Maven version which supports jdk you use  In my case JDK 11 and maven 3 6 0   2  pom xml   lt properties gt       lt maven compiler source gt 11 lt  maven compiler source gt       lt maven compiler target gt 11 lt  maven compiler target gt   lt  properties gt    As an alternative  you can fully specify maven compiler plugin  See previous answers  It is shorter in my example      lt build gt       lt plugins gt           lt plugin gt               lt groupId gt org apache maven plugins lt  groupId gt               lt artifactId gt maven-compiler-plugin lt  artifactId gt               lt version gt 3 8 0 lt  version gt               lt configuration gt                   lt release gt 11 lt  release gt               lt  configuration gt           lt  plugin gt       lt  plugins gt   lt  build gt    3  rebuild the project to avoid compile errors in your IDE   4  If it still does not work  In Intellij Idea I prefer using terminal instead of using terminal from OS  Then in Idea go to file -  settings -  build tools -  maven  I work with maven I downloaded from apache  by default Idea uses bundled maven   Restart Idea then and run mvn clean install again  Also make sure you have correct Path  MAVEN HOME  JAVA HOME environment variables   I also saw this one-liner  but it does not work    lt maven compiler release gt 11 lt  maven compiler release gt    I made some quick starter projects  which I re-use in other my projects  feel free to check    https   github com yan-khonski-it mvn-pmd-java11 https   github com yan-khonski-it pmd-java-14

User · Answer

UPDATE  The answer is now obsolete  See this answer     maven-compiler-plugin depends on the old version of ASM which does not support Java 10  and Java 11  yet  However  it is possible to explicitly specify the right version of ASM    lt plugin gt       lt groupId gt org apache maven plugins lt  groupId gt       lt artifactId gt maven-compiler-plugin lt  artifactId gt       lt version gt 3 7 0 lt  version gt       lt configuration gt           lt release gt 10 lt  release gt       lt  configuration gt       lt dependencies gt           lt dependency gt               lt groupId gt org ow2 asm lt  groupId gt               lt artifactId gt asm lt  artifactId gt               lt version gt 6 2 lt  version gt   lt  -- Use newer version of ASM -- gt           lt  dependency gt       lt  dependencies gt   lt  plugin gt    You can find the latest at https   search maven org search q g org ow2 asm 20AND 20a asm amp core gav

[java] Unable to compile simple Java 10 / Java 11 project with Maven

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