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Simon commented on SUREFIRE-1923: --------------------------------- I faced exactly the same problem using recent version of surefire plugin (3.1.2) and using a toolchain targeting JDK 7. I get : {code:java} Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/maven/surefire/booter/ForkedBooter : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482) {code} I understand the only solution is to go back to older version of surefire, so I need now to use surefire {*}3.0.0-M5{*}... I understood one of point of using toolchain was to be able to use recent JDK and also recent version of maven plugin and still be able to compile/test with old version of java. This issue is a bit a dream breaker 😢 > Toolchain using JDK 6 does not work > ----------------------------------- > > Key: SUREFIRE-1923 > URL: https://issues.apache.org/jira/browse/SUREFIRE-1923 > Project: Maven Surefire > Issue Type: Bug > Components: Maven Surefire Plugin > Affects Versions: 3.0.0-M5 > Reporter: Jarkko Rantavuori > Priority: Major > Attachments: pom.xml > > > Using toolchain in attempt to get a working build using Java 6, with Maven > itself using Java 8. Shouldn't using the toolchain allow using older versions > for compiling and execution of tests, since plugin itself is running with > whatever Maven uses? > Error I get is: > > {code:java} > Error: Exception in thread "main" java.lang.UnsupportedClassVersionError: > org/apache/maven/surefire/booter/ForkedBooter : Unsupported major.minor > version 51.0 > Error: at java.lang.ClassLoader.defineClass1(Native Method) > Error: at java.lang.ClassLoader.defineClass(ClassLoader.java:648) > Error: at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) > Error: at java.net.URLClassLoader.defineClass(URLClassLoader.java:296) > Error: at java.net.URLClassLoader.access$000(URLClassLoader.java:69) > Error: at java.net.URLClassLoader$1.run(URLClassLoader.java:231) > Error: at java.net.URLClassLoader$1.run(URLClassLoader.java:225) > Error: at java.security.AccessController.doPrivileged(Native Method) > Error: at java.net.URLClassLoader.findClass(URLClassLoader.java:224) > Error: at java.lang.ClassLoader.loadClass(ClassLoader.java:325) > Error: at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:307) > Error: at java.lang.ClassLoader.loadClass(ClassLoader.java:270) > Error: at > sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:406) > {code} > Attached my pom. > Also this error can be seen: > {code:java} > Error: Failed to execute goal > org.apache.maven.plugins:maven-surefire-plugin:3.0.0-M5:test (default-test) > on project minimal-di: There are test failures. > Error: > Error: Please refer to > /home/runner/work/minimal-di/minimal-di/target/surefire-reports for the > individual test results. > Error: Please refer to dump files (if any exist) [date].dump, > [date]-jvmRun[N].dump and [date].dumpstream. > Error: The forked VM terminated without properly saying goodbye. VM > crash or System.exit called? > Error: Command was /bin/sh -c cd /home/runner/work/minimal-di/minimal-di > && /home/runner/.jabba/jdk/zulu@1.6.119/bin/java > -javaagent:/home/runner/.m2/repository/org/jacoco/org.jacoco.agent/0.8.7/org.jacoco.agent-0.8.7-runtime.jar=destfile=/home/runner/work/minimal-di/minimal-di/target/jacoco.exec > -jar > /home/runner/work/minimal-di/minimal-di/target/surefire/surefirebooter4248000144598324679.jar > /home/runner/work/minimal-di/minimal-di/target/surefire > 2021-06-28T18-08-47_748-jvmRun1 surefire5952048774464180572tmp > surefire_03168907528824382024tmp > Error: Error occurred in starting fork, check output in log > Error: Process Exit Code: 1 > Error: org.apache.maven.surefire.booter.SurefireBooterForkException: The > forked VM terminated without properly saying goodbye. VM crash or System.exit > called? > Error: Command was /bin/sh -c cd /home/runner/work/minimal-di/minimal-di > && /home/runner/.jabba/jdk/zulu@1.6.119/bin/java > -javaagent:/home/runner/.m2/repository/org/jacoco/org.jacoco.agent/0.8.7/org.jacoco.agent-0.8.7-runtime.jar=destfile=/home/runner/work/minimal-di/minimal-di/target/jacoco.exec > -jar > /home/runner/work/minimal-di/minimal-di/target/surefire/surefirebooter4248000144598324679.jar > /home/runner/work/minimal-di/minimal-di/target/surefire > 2021-06-28T18-08-47_748-jvmRun1 surefire5952048774464180572tmp > surefire_03168907528824382024tmp > Error: Error occurred in starting fork, check output in log > Error: Process Exit Code: 1 > Error: at > org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:748) > Error: at > org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:305) > Error: at > org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:265) > Error: at > org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1314) > Error: at > org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:1159) > Error: at > org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:932) > Error: at > org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137) > Error: at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210) > Error: at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156) > Error: at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148) > Error: at > org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117) > Error: at > org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81) > Error: at > org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56) > Error: at > org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) > Error: at > org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305) > Error: at > org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192) > Error: at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105) > Error: at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957) > Error: at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289) > Error: at org.apache.maven.cli.MavenCli.main(MavenCli.java:193) > Error: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > Error: at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > Error: at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > Error: at java.lang.reflect.Method.invoke(Method.java:498) > Error: at > org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282) > Error: at > org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225) > Error: at > org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406) > Error: at > org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347) > Error: -> [Help 1] > {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)