I'm getting intermittent JUnit 4 errors in our Jenkins build system. The test passes after re-running it. The test is started by Maven and uses JMockit for mock objects.
The root cause of the exception comes from the VM:
Caused by: java.io.IOException: Connection refused
at sun.tools.attach.LinuxVirtualMachine.connect(Native Method)
at sun.tools.attach.LinuxVirtualMachine.<init>(LinuxVirtualMachine.java:124)
Anyone experienced this and found a solution?
Looks like its a bug in the JVM http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6649594
The workaround was to pass a JVM argument:
-XX:+StartAttachListener
and the tests stopped failing.
Related
I'm getting this error while trying to build my Hybris project via ant clean all && ./hybrisserver.sh debug:
Error occurred during initialization of VM
java.lang.Error: Could not create SecurityManager
at java.lang.System.initPhase3(java.base#11.0.9.1/System.java:2065)
Caused by: java.lang.ClassNotFoundException: allow
at jdk.internal.loader.BuiltinClassLoader.loadClass(java.base#11.0.9.1/BuiltinClassLoader.java:581)
at jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(java.base#11.0.9.1/ClassLoaders.java:178)
at java.lang.ClassLoader.loadClass(java.base#11.0.9.1/ClassLoader.java:522)
at java.lang.Class.forName0(java.base#11.0.9.1/Native Method)
at java.lang.Class.forName(java.base#11.0.9.1/Class.java:398)
at java.lang.System.initPhase3(java.base#11.0.9.1/System.java:2050)
Maybe I put a typo somewhere (see Caused by: java.lang.ClassNotFoundException: allow
) but I can't find anything and my repo's up to date with master which is correctly working, Is there a way to find the problem?
Note: i have Ubuntu 20.04.5 LTS
Thank you
Solution was simple:
Somehow I lost my setantenv.sh configuration, i had to re-run it in /platform
I'm using Gatling Frontline to run load tests written in scala with sbt as the build tool. The project compiles, builds, and runs successfully locally. However, when running on a Frontline host, the host fails to connect to the injector pool because the injector process has crashed with an Exception in thread "main" java.lang.reflect.InvocationTargetException. The stack trace indicates that this exception is caused by
java.lang.NoClassDefFoundError: com/google/protobuf/ByteString$Output
and
java.lang.ClassNotFoundException: com.google.protobuf.ByteString$Output.
This error has never occurred locally, during development, as this google package is not used by my project. Could this problem be fixed by changing any of the jvm options supplied by Frontline, or by adding certain system properties or build properties.
We have been trying to get Pipeline working on Jenkins 2.107 however it keeps coming up with an error that i have struggled to locate online. We have a Windows 2008 R2 server with Jenkins running as a service.
I have installed the pipeline plugin and set up the Hello World provided to test it. As soon s it starts to build it throws this error to the console.
Running in Durability level: MAX_SURVIVABILITY [BFA] Scanning build
for known causes... [BFA] No failure causes found [BFA] Done. 0s
java.lang.ClassNotFoundException:
org.kohsuke.groovy.sandbox.GroovyInterceptor at
jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) Caused:
java.lang.NoClassDefFoundError:
org/kohsuke/groovy/sandbox/GroovyInterceptor at
org.jenkinsci.plugins.workflow.cps.CpsGroovyShellFactory.makeClassLoader(CpsGroovyShellFactory.java:113)
at
org.jenkinsci.plugins.workflow.cps.CpsGroovyShellFactory.build(CpsGroovyShellFactory.java:119)
at
org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.parseScript(CpsFlowExecution.java:556)
at
org.jenkinsci.plugins.workflow.cps.CpsFlowExecution.start(CpsFlowExecution.java:520)
at
org.jenkinsci.plugins.workflow.job.WorkflowRun.run(WorkflowRun.java:319)
at
hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:429) Finished: FAILURE
We are running Java 8 and i have set Jenkins to use Java 8 in the config file. I have researched this error but can't seem to find something similar.
We have another server which runs pipeline fine however the differences are that this is windows 2012 server and it is running an older version of Jenkins and Java. Other than the two differences all plugins and config match.
I had this error and resolved it by upgrading the Script Security plugin to version 1.44 (had 1.41).
I am installing WOLips. I have installed the plugins in Eclipse and everything seems fine (except Goodies won't install). I have tried to run WOInstaller.jar but I get a "connection time out" error:
$ sudo java -jar WOInstaller.jar 5.4.3 $HOME/workspace/WebObjects543/Versions/WebObjects543.
Exception in thread "main" java.net.ConnectException: Connection timed out at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
This is the build recommended for my version of Eclipse on Debian. Any ideas?
I solved it. It was a proxy problem. Using java -Dhttp.proxyHost=10.0.0.0 -Dhttp.proxyPort=8080 -jar etc. it works!
I am getting Null pointer exception while running Junit tests on Eclipse, Mac.This is my first run so don't know if I have to do something special for running tests on Mac OSX. I am able to run these tests on my Ubuntu VM,
Stack Trace:
java.lang.NullPointerException
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate$ClasspathLocalizer.localURL(JUnitLaunchConfigurationDelegate.java:429)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate$ClasspathLocalizer.entryString(JUnitLaunchConfigurationDelegate.java:418)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate$ClasspathLocalizer.addEntry(JUnitLaunchConfigurationDelegate.java:405)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate$ClasspathLocalizer.localizeClasspath(JUnitLaunchConfigurationDelegate.java:396)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate.getClasspath(JUnitLaunchConfigurationDelegate.java:373)
at org.eclipse.jdt.junit.launcher.JUnitLaunchConfigurationDelegate.launch(JUnitLaunchConfigurationDelegate.java:147)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:885)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:739)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1039)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1256)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Any thoughts?
There seems to be an configuration issue with my Eclipse copy. I have reinstalled the eclipse and this issue resolved