I've asked ASF Infra so install the latest JDK 16-ea. They confirmed there was a difference between Windows and Ubuntu: "Right, we have ea30 on Ubuntu and ea24 on Windows currently, will update."
In the meantime I've rerun the build including the stacktrace: Caused by: java.lang.ExceptionInInitializerError at org.codehaus.groovy.runtime.InvokerHelper.<clinit> (InvokerHelper.java:48) at groovy.lang.GroovyObjectSupport.<init> (GroovyObjectSupport.java:32) at groovy.lang.Binding.<init> (Binding.java:32) at groovy.lang.Script.<init> (Script.java:37) at script1612703365095.<init> (script1612703365095.groovy) at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0 (Native Method) at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance (NativeConstructorAccessorImpl.java:78) at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance (DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstanceWithCaller (Constructor.java:499) at java.lang.reflect.ReflectAccess.newInstance (ReflectAccess.java:128) at jdk.internal.reflect.ReflectionFactory.newInstance (ReflectionFactory.java:350) at java.lang.Class.newInstance (Class.java:642) at org.codehaus.gmaven.runtime.support.ScriptExecutorSupport.execute (ScriptExecutorSupport.java:65) at org.codehaus.gmaven.plugin.execute.ExecuteMojo.process (ExecuteMojo.java:239) at org.codehaus.gmaven.plugin.ComponentMojoSupport.doExecute (ComponentMojoSupport.java:60) at org.codehaus.gmaven.plugin.MojoSupport.execute (MojoSupport.java:69) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) 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:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.jvnet.hudson.maven3.launcher.Maven35Launcher.main (Maven35Launcher.java:130) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:78) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:567) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at jenkins.maven3.agent.Maven35Main.launch (Maven35Main.java:178) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:78) at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:567) at hudson.maven.Maven3Builder.call (Maven3Builder.java:139) at hudson.maven.Maven3Builder.call (Maven3Builder.java:70) at hudson.remoting.UserRequest.perform (UserRequest.java:211) at hudson.remoting.UserRequest.perform (UserRequest.java:54) at hudson.remoting.Request$2.run (Request.java:369) at hudson.remoting.InterceptingExecutorService$1.call (InterceptingExecutorService.java:72) at java.util.concurrent.FutureTask.run (FutureTask.java:264) at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1130) at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:630) at java.lang.Thread.run (Thread.java:831) Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected void java.lang.Object.finalize() throws java.lang.Throwable accessible: module java.base does not "opens java.lang" to unnamed module @2f4adf8c at java.lang.reflect.AccessibleObject.checkCanSetAccessible (AccessibleObject.java:357) at java.lang.reflect.AccessibleObject.checkCanSetAccessible (AccessibleObject.java:297) at java.lang.reflect.Method.checkCanSetAccessible (Method.java:199) at java.lang.reflect.AccessibleObject.setAccessible (AccessibleObject.java:130) at org.codehaus.groovy.reflection.CachedClass$3$1.run (CachedClass.java:85) at java.security.AccessController.doPrivileged (AccessController.java:312) at org.codehaus.groovy.reflection.CachedClass$3.initValue (CachedClass.java:80) at org.codehaus.groovy.reflection.CachedClass$3.initValue (CachedClass.java:78) at org.codehaus.groovy.util.LazyReference.getLocked (LazyReference.java:33) at org.codehaus.groovy.util.LazyReference.get (LazyReference.java:20) at org.codehaus.groovy.reflection.CachedClass.getMethods (CachedClass.java:252) at org.codehaus.groovy.reflection.CachedClass$3.initValue (CachedClass.java:115) at org.codehaus.groovy.reflection.CachedClass$3.initValue (CachedClass.java:78) at org.codehaus.groovy.util.LazyReference.getLocked (LazyReference.java:33) at org.codehaus.groovy.util.LazyReference.get (LazyReference.java:20) at org.codehaus.groovy.reflection.CachedClass.getMethods (CachedClass.java:252) at org.codehaus.groovy.reflection.CachedClass$3.initValue (CachedClass.java:115) at org.codehaus.groovy.reflection.CachedClass$3.initValue (CachedClass.java:78) at org.codehaus.groovy.util.LazyReference.getLocked (LazyReference.java:33) at org.codehaus.groovy.util.LazyReference.get (LazyReference.java:20) at org.codehaus.groovy.reflection.CachedClass.getMethods (CachedClass.java:252) at org.codehaus.groovy.reflection.stdclasses.CachedClosureClass.<init> (CachedClosureClass.java:14) at org.codehaus.groovy.reflection.ClassInfo.createCachedClass (ClassInfo.java:258) at org.codehaus.groovy.reflection.ClassInfo.access$400 (ClassInfo.java:35) at org.codehaus.groovy.reflection.ClassInfo$LazyCachedClassRef.initValue (ClassInfo.java:424) at org.codehaus.groovy.reflection.ClassInfo$LazyCachedClassRef.initValue (ClassInfo.java:415) at org.codehaus.groovy.util.LazyReference.getLocked (LazyReference.java:33) at org.codehaus.groovy.util.LazyReference.get (LazyReference.java:20) at org.codehaus.groovy.reflection.ClassInfo.getCachedClass (ClassInfo.java:88) at org.codehaus.groovy.reflection.ReflectionCache.getCachedClass (ReflectionCache.java:107) at org.codehaus.groovy.reflection.ParameterTypes.getParametersTypes0 (ParameterTypes.java:77) at org.codehaus.groovy.reflection.ParameterTypes.getParameterTypes (ParameterTypes.java:63) at org.codehaus.groovy.reflection.CachedMethod.compareToCachedMethod (CachedMethod.java:148) at org.codehaus.groovy.reflection.CachedMethod.compareTo (CachedMethod.java:131) at java.util.ComparableTimSort.countRunAndMakeAscending (ComparableTimSort.java:320) at java.util.ComparableTimSort.sort (ComparableTimSort.java:202) at java.util.Arrays.sort (Arrays.java:1040) at org.codehaus.groovy.reflection.CachedClass$3.initValue (CachedClass.java:111) at org.codehaus.groovy.reflection.CachedClass$3.initValue (CachedClass.java:78) at org.codehaus.groovy.util.LazyReference.getLocked (LazyReference.java:33) at org.codehaus.groovy.util.LazyReference.get (LazyReference.java:20) at org.codehaus.groovy.reflection.CachedClass.getMethods (CachedClass.java:252) at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.registerMethods (MetaClassRegistryImpl.java:138) at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.<init> (MetaClassRegistryImpl.java:87) at org.codehaus.groovy.runtime.metaclass.MetaClassRegistryImpl.<init> (MetaClassRegistryImpl.java:65) at groovy.lang.GroovySystem.<clinit> (GroovySystem.java:29) at org.codehaus.groovy.runtime.InvokerHelper.<clinit> (InvokerHelper.java:48) at groovy.lang.GroovyObjectSupport.<init> (GroovyObjectSupport.java:32) at groovy.lang.Binding.<init> (Binding.java:32) at groovy.lang.Script.<init> (Script.java:37) at script1612703365095.<init> (script1612703365095.groovy) at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0 (Native Method) at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance (NativeConstructorAccessorImpl.java:78) at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance (DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstanceWithCaller (Constructor.java:499) at java.lang.reflect.ReflectAccess.newInstance (ReflectAccess.java:128) at jdk.internal.reflect.ReflectionFactory.newInstance (ReflectionFactory.java:350) at java.lang.Class.newInstance (Class.java:642) at org.codehaus.gmaven.runtime.support.ScriptExecutorSupport.execute (ScriptExecutorSupport.java:65) at org.codehaus.gmaven.plugin.execute.ExecuteMojo.process (ExecuteMojo.java:239) at org.codehaus.gmaven.plugin.ComponentMojoSupport.doExecute (ComponentMojoSupport.java:60) at org.codehaus.gmaven.plugin.MojoSupport.execute (MojoSupport.java:69) On 7-2-2021 11:22:50, Rory O'Donnell <rory.odonn...@oracle.com> wrote: Hi Robert, There's no stack trace so can't see if it's Groovy or something else hacking the JDK ? Probably best to log a bug with as much info as possible, version of Groovy etc. Thanks,Rory On 05/02/2021 19:15, Robert Scholte wrote: > I've been to reproduce it again: > Jenkins: https://ci-builds.apache.org/job/Maven/job/jdk16-ea/2/console > > Sources: https://github.com/rfscholte/jdk16-ea > > > Most important lines: > Failed to execute goal org.codehaus.gmaven:gmaven-plugin:1.4:execute > (default) on project mcompiler-182: Execution default of goal > org.codehaus.gmaven:gmaven-plugin:1.4:execute failed: An API > incompatibility was encountered while executing > org.codehaus.gmaven:gmaven-plugin:1.4:execute: > java.lang.ExceptionInInitializerError: null > > Unable to make protected void java.lang.Object.finalize() throws > java.lang.Throwable accessible: module java.base does not "opens > java.lang" to unnamed module @19c074f > > I am aware that this is a rather old plugin, but I would first > understand the difference between Linux and Windows (and which one has > the right behavior) > Sadly Windows only shows: > Java version: 16-ea, vendor: Oracle Corporation, runtime: > f:\jenkins\tools\java\latest16 > > I could ask our ASF INFRA for more details. > > thanks, > Robert >> >> On 5-2-2021 17:51:49, Robert Scholte wrote: >> >> Hi Rory, >> >> I hope I can isolate the issue and come with a clear description. >> >> thanks, >> Robert >>> >>> On 5-2-2021 17:18:11, Rory O'Donnell wrote: >>> >>> Hi Robert, >>> >>> Could you log a bug and send the JI number ? >>> >>> Thanks, Rory >>> >>> On 05/02/2021 11:45, Rory O'Donnell wrote: >>> > Hi Robert, >>> > >>> > I've been asked if you can provide a link to the exception, we can't >>> > immediately find it on your Jenkins. >>> > If we can get to the stack trace then it might reveal a bit more. The >>> > temporary workaround is to open java.lang of course. >>> > >>> > Rgds,Rory >>> > >>> > On 05/02/2021 11:18, Robert Scholte wrote: >>> >> Hi Rory, >>> >> >>> >> we're seeing some projects failing due to JDK16 + Linux[1], and I >>> >> think they all have a similar issue. >>> >> The error looks like this: >>> >> Unable to make public java.lang.AbstractStringBuilder >>> >> java.lang.AbstractStringBuilder.append(char[],int,int) accessible: >>> >> module java.base does not "opens java.lang" to unnamed module >>> @fb4e68d >>> >> Most likely it is related to Groovy too. >>> >> Java version: 16-ea, vendor: Oracle Corporation, runtime: >>> >> /usr/local/asfpackages/java/openjdk-16-ea+30 >>> >> >>> >> If you have a hint, let me know, otherwise we need to investigate >>> >> this more. >>> >> >>> >> thanks, >>> >> Robert >>> >> [1] >>> >> >>> https://ci-builds.apache.org/job/Maven/job/dist-tool-plugin/job/master/site/dist-tool-master-jobs.html >>> >>> >>> >> >>> >>> >>> >>> On 5-2-2021 12:08:33, Rory O'Donnell wrote: >>> >>> >>> >>> >>> >>> *Hi Robert , * >>> >>> >>> >>> *Per the JDK 16 schedule , we are in the Release Candidate >>> Phase**[1] .* >>> >>> >>> >>> *Please advise if you find any issues while testing the latest >>> Early >>> >>> Access builds.* >>> >>> >>> >>> * Schedule for JDK 16 >>> >>> o *2021/02/04 Initial Release Candidate* >>> >>> o 2021/02/18 Final Release Candidate >>> >>> o 2021/03/16 General Availability >>> >>> * Release Notes [2] >>> >>> >>> >>> OpenJDK 16 Early Access build 35**is now available at >>> >>> http://jdk.java.net/16 >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> * These early-access, open-source builds are provided under the >>> >>> GNU General Public License, version 2, with the Classpath >>> >>> Exception . >>> >>> * Features [3] - the overall feature set is frozen. No further >>> >>> JEPs will be targeted to this release. >>> >>> * Changes in recent builds that maybe of interest: >>> >>> o Build 34: >>> >>> + JDK-8259025: Record compact constructor using >>> >>> Objects.requireNonNull >>> >>> # Reported by JUnit5 >>> >>> o Build 32: >>> >>> + JDK-8259014: Incomplete support for Unix domain sockets >>> >>> in Windows 2019 Server >>> >>> >>> >>> * JDK 16 - topics of interest: >>> >>> o Unix domain socket channels (JEP-380) overview: >>> >>> >>> https://inside.java/2021/02/03/jep380-unix-domain-sockets-channels/ >>> >>> >>> >>> >>> >>> o Java Feature Spotlight: Pattern Matching >>> >>> >>> https://inside.java/2021/01/22/feature-spotlight-pattern-matching/ >>> >>> >>> >>> >>> >>> o Foreign Memory Access - Pulling all the thread >>> >>> >>> https://inside.java/2021/01/25/memory-access-pulling-all-the-threads/ >>> >>> >>> >>> >>> >>> * General – topic of interest: >>> >>> o Inside Java Episode 11 “How to contribute to OpenJDK” with >>> >>> Stuart Marks and Jesper Wilhelmsson >>> >>> https://inside.java/2021/01/29/podcast-011/ >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> Project Lanai EA 9 Build 17-lanai+2-49 (2021/1/20) >>> >>> >>> >>> is available now >>> >>> >>> >>> * These early-access builds are provided under the GNU General >>> >>> Public License, version 2, with the Classpath Exception >>> >>> >>> >>> * EA builds are intended for developers looking to test and >>> >>> provide feedback on using Project Lanai. >>> >>> * This is a macOS-specific project which implements a new Java 2D >>> >>> graphics rendering pipeline for macOS. >>> >>> * Project Lanai Wiki: >>> >>> https://wiki.openjdk.java.net/display/lanai/Main >>> >>> >>> >>> * Please send feedback via e-mail to lanai-...@openjdk.java.net >>> >>> . To send e-mail to this >>> >>> address you must first subscribe to the mailing list >>> >>> . >>> >>> >>> >>> Project Loom Build 17-loom+2-42 (2021/1/14) >>> >>> >>> >>> based on JDK-17+5 >>> >>> >>> >>> is available now >>> >>> >>> >>> * These early-access builds are provided under the GNU General >>> >>> Public License, version 2, with the Classpath Exception >>> >>> >>> >>> * These builds are intended for developers looking to "kick the >>> >>> tyres" and provide feedback on using the API or by sending bug >>> >>> reports. >>> >>> * API Javadoc : >>> >>> https://download.java.net/java/early_access/loom/docs/api/ >>> >>> >>> >>> >>> >>> * Please send feedback via e-mail to loom-...@openjdk.java.net >>> >>> . To send e-mail to this >>> >>> address you must first subscribe to the mailing list >>> >>> . >>> >>> >>> >>> OpenJDK 17 Early Access build 8**is now available at >>> >>> http://jdk.java.net/17 >>> >>> >>> >>> >>> >>> >>> >>> * These early-access, open-source builds are provided under the >>> >>> GNU General Public License, version 2, with the Classpath >>> >>> Exception . >>> >>> * Changes in recent builds that maybe of interest: >>> >>> o Build 8: >>> >>> + JDK-8222850: Misleading cascade compiler error in switch >>> >>> expression with undefined vars >>> >>> # Reported by jOOQ. >>> >>> + JDK-8217633: Configurable extensions with system properties >>> >>> + JDK-8249867: DOM LSSerializer control of newline after >>> >>> XML header >>> >>> + JDK-8256421: Added 2 HARICA Root CA Certificates >>> >>> + JDK-8259801: Enable XML Signature secure validation mode >>> >>> by default >>> >>> o Build 7: >>> >>> + JDK-8165276: Spec states to invoke the premain method in >>> >>> an agent class if it's public but implementation differs >>> >>> + JDK-8256895: Add support for RFC 8954: Online >>> >>> Certificate Status Protocol (OCSP) Nonce Extension >>> >>> o Build 6: >>> >>> + JDK-8259048: (tz) Upgrade time-zone data to tzdata2020f >>> >>> >>> >>> January 2021 Critical Patch Update Released: >>> >>> >>> >>> * As part of the Jan 2021 CPU we released JDK 15.0.2, JDK 11.0.10 >>> >>> LTS, JDK 8u281, and JDK 7u291 as well as OpenJDK 15.0.2 >>> >>> (publicly available). >>> >>> >>> >>> Rgds, Rory >>> >>> >>> >>> [1] >>> >>> >>> https://mail.openjdk.java.net/pipermail/jdk-dev/2021-February/005062.html >>> >>> >>> >>> >>> [2] https://jdk.java.net/16/release-notes >>> >>> >>> >>> >>> >>> [3] http://openjdk.java.net/projects/jdk/16/ >>> >>> >>> >>> -- >>> >>> Rgds, Rory O'Donnell >>> >>> Quality Engineering Manager >>> >>> Oracle EMEA, Dublin, Ireland >>> > >>> > -- >>> > Rgds, Rory O'Donnell >>> > Quality Engineering Manager >>> > Oracle EMEA, Dublin, Ireland >>> >>> -- >>> Rgds, Rory O'Donnell >>> Quality Engineering Manager >>> Oracle EMEA, Dublin, Ireland >>> -- Rgds, Rory O'Donnell Quality Engineering Manager Oracle EMEA, Dublin, Ireland