After upgrading from 1.509.2 to 1.509.4 some maven projects fail with an "java.io.InvalidClassException: hudson.maven.PlexusModuleContributorFactory$1;" exception.

tried, but did not help:

• different maven version: 2.2.11, 3.0.3 , 3.1.0
• create new empty project
• remove all files from slave so jenkins had to copy slave files + maven

Guessing the problem could be the other JVM on the Slave? Its an IBM JVM 1.6.0 while the master is an Oracle JVM. But on the other hand this is no issue with maven 1.509.2 plugin. Projects on another slave ( Oracle VM, Ubuntu) are still working.

Workaround: Downgrade maven plugin to 1.509.2

LOG:

No emails were triggered.
Parsing POMs
ERROR: Failed to parse POMs
hudson.util.IOException2: remote file operation failed: /srv/jenkins-baubau/workspace/BauBau-Dataservice-Build at hudson.remoting.Channel@539bd9e8:BauBau-buildserver
at hudson.FilePath.act(FilePath.java:906)
at hudson.FilePath.act(FilePath.java:883)
at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.parsePoms(MavenModuleSetBuild.java:922)
at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:654)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:565)
at hudson.model.Run.execute(Run.java:1592)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:508)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:237)
Caused by: java.io.InvalidClassException: hudson.maven.PlexusModuleContributorFactory$1; local class incompatible: stream classdesc serialVersionUID = -8108615509280767004, local class serialVersionUID = 878384944515657062
at java.io.InvalidClassException.<init>(InvalidClassException.java:62)
at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:601)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1600)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1513)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1749)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1964)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1888)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1964)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1888)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:365)
at hudson.remoting.UserRequest.deserialize(UserRequest.java:182)
at hudson.remoting.UserRequest.perform(UserRequest.java:98)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:326)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:314)
at java.util.concurrent.FutureTask.run(FutureTask.java:149)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919)
at java.lang.Thread.run(Thread.java:736)