I'm running a cpd analysis on a remote (SSH) slave. The cpd command seems to work, but the build fails when the DRY parser tries to access the remote file.

There are several of these 'remote file operation failed' bugs filed, but based on the stack trace below, maybe this is a problem with the DRY plugin.

[DRY] Collecting duplicate code analysis files...
FATAL: remote file operation failed
hudson.util.IOException2: remote file operation failed
at hudson.FilePath.act(FilePath.java:677)
at hudson.FilePath.act(FilePath.java:665)
at hudson.plugins.dry.DryPublisher.perform(DryPublisher.java:103)
at hudson.plugins.analysis.core.HealthAwarePublisher.perform(HealthAwarePublisher.java:140)
at hudson.tasks.BuildStepMonitor$2.perform(BuildStepMonitor.java:27)
at hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:516)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildStep(AbstractBuild.java:502)
at hudson.model.AbstractBuild$AbstractRunner.performAllBuildStep(AbstractBuild.java:490)
at hudson.model.Build$RunnerImpl.post2(Build.java:181)
at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:474)
at hudson.model.Run.run(Run.java:1199)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:123)
Caused by: java.io.IOException: Remote call failed
at hudson.remoting.Channel.call(Channel.java:552)
at hudson.FilePath.act(FilePath.java:672)
... 13 more
Caused by: java.lang.ClassNotFoundException: Failed to deserialize the Callable object. Perhaps you needed to implement DelegatingCallable?
at hudson.remoting.UserRequest.perform(UserRequest.java:90)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:270)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
Caused by: java.lang.ClassNotFoundException: hudson.plugins.dry.parser.DuplicationParserRegistry
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:621)
at hudson.remoting.ObjectInputStreamEx.resolveClass(ObjectInputStreamEx.java:50)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1592)
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:1963)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1887)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1963)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1887)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1770)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1346)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:368)
at hudson.remoting.UserRequest.deserialize(UserRequest.java:168)
at hudson.remoting.UserRequest.perform(UserRequest.java:88)
... 8 more