Runtime compilation fails with classloader cast exception

[kaspersorensen]

Seems the Eval class cannot handle our custom classloaders ....

Unexpected error!


Message:
    java.util.concurrent.ExecutionException: java.lang.ClassCastException: org.datacleaner.extensions.ExtensionClassLoader cannot be cast to java.net.URLClassLoader
Level:
    SEVERE
Stack Trace:
java.lang.ClassCastException: org.datacleaner.extensions.ExtensionClassLoader cannot be cast to java.net.URLClassLoader
    java.util.concurrent.FutureTask.report(Unknown Source)
    java.util.concurrent.FutureTask.get(Unknown Source)
    javax.swing.SwingWorker.get(Unknown Source)
    org.datacleaner.windows.DataSetWindow$2.done(DataSetWindow.java:149)
    javax.swing.SwingWorker$5.run(Unknown Source)
    javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Source)
    sun.swing.AccumulativeRunnable.run(Unknown Source)
    javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(Unknown Source)
    javax.swing.Timer.fireActionPerformed(Unknown Source)
    javax.swing.Timer$DoPostEvent.run(Unknown Source)
    java.awt.event.InvocationEvent.dispatch(Unknown Source)
    java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    java.awt.EventQueue.access$400(Unknown Source)
    java.awt.EventQueue$3.run(Unknown Source)
    java.awt.EventQueue$3.run(Unknown Source)
    java.security.AccessController.doPrivileged(Native Method)
    java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    java.awt.EventQueue.dispatchEvent(Unknown Source)
    java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    java.awt.EventDispatchThread.run(Unknown Source)
org.datacleaner.extensions.ExtensionClassLoader cannot be cast to java.net.URLClassLoader
    com.hi.scalaextension.Eval.impliedClassPath$lzycompute(Eval.scala:319)
    com.hi.scalaextension.Eval.impliedClassPath(Eval.scala:318)
    com.hi.scalaextension.Eval$StringCompiler.<init>(Eval.scala:433)
    com.hi.scalaextension.Eval.compiler$lzycompute(Eval.scala:109)
    com.hi.scalaextension.Eval.compiler(Eval.scala:109)
    com.hi.scalaextension.Eval.compileCode(Eval.scala:200)
    com.hi.scalaextension.ScalaCodeTransformer.init(ScalaCodeTransformer.scala:45)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    java.lang.reflect.Method.invoke(Unknown Source)
    org.datacleaner.descriptors.AbstractMethodDescriptor.invoke(AbstractMethodDescriptor.java:75)
    org.datacleaner.descriptors.InitializeMethodDescriptorImpl.initialize(InitializeMethodDescriptorImpl.java:44)
    org.datacleaner.lifecycle.InitializeCallback.onEvent(InitializeCallback.java:58)
    org.datacleaner.lifecycle.LifeCycleHelper.initialize(LifeCycleHelper.java:170)
    org.datacleaner.job.tasks.InitializeTask.execute(InitializeTask.java:51)
    org.datacleaner.job.concurrent.TaskRunnable.run(TaskRunnable.java:61)
    java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    java.lang.Thread.run(Unknown Source)