Terracotta Discussion Forums

I created a simple test that runs under terracotta (it is NOT sharing anything) that has a similar structure as the real application but stripped down. It seems like a class loader issue (terracotta 3.5.0); does it have anything to do with this code from BootJarTool.java?
Code:

 private final void addInstrumentedJavaUtilConcurrentFutureTask() {
 
     if (!Vm.isJDK15Compliant()) { return; }
     final Map instrumentedContext = new HashMap();
 
     TransparencyClassSpec spec = this.configHelper.getOrCreateSpec("java.util.concurrent.FutureTask");
     spec.setHonorTransient(true);
     spec.setCallConstructorOnLoad(true);
     spec.markPreInstrumented();
     changeClassName("java.util.concurrent.FutureTaskTC", "java.util.concurrent.FutureTaskTC",
                     "java.util.concurrent.FutureTask", instrumentedContext, true);
 
     this.configHelper.addWriteAutolock("* java.util.concurrent.FutureTask$Sync.*(..)");
 
     spec = this.configHelper.getOrCreateSpec("java.util.concurrent.FutureTask$Sync");
     spec.setHonorTransient(true);
     spec.markPreInstrumented();
     spec.addDistributedMethodCall("managedInnerCancel", "()V", true);
     changeClassName("java.util.concurrent.FutureTaskTC$Sync", "java.util.concurrent.FutureTaskTC",
                     "java.util.concurrent.FutureTask", instrumentedContext, true);
   }

My test code. If you run it as a regular java app, it logs
"java.lang.Exception: test exception
"... exiting"

If you start it as a terracotta app (note that there is NOTHING shared), you get
"java.lang.ClassCastException: java.util.concurrent.FutureTask cannot be cast to java.util.concurrent.RunnableFuture
... exiting"

The line that throws class cast exception is:
"for (RunnableFuture<T> future : submittedTasks) { ..."

Code:

 package com.acme.test;
 
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Random;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
 import java.util.concurrent.FutureTask;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.RunnableFuture;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 
 public class TestThreadPoolExecutor {
 	
 	public static final TestThreadPoolExecutor testPool  =
 	    new TestThreadPoolExecutor( 4, 4, 0L,
 	      TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>());
 	
 	private ThreadPoolExecutor delegate;
 	
 	TestThreadPoolExecutor( int corePoolSize, int maximumPoolSize, long keepAliveTime, 
 			TimeUnit unit, BlockingQueue<Runnable> workQueue ) {
 		delegate = new ThreadPoolExecutor(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue );
     }
 	
 	public <T> Future<T> submit(Runnable task, T result) {
 		return delegate.submit(task, result);
 	}
 	
 	public void execute(Runnable task) {
 		delegate.execute(task);
 	}
 	
 	public BlockingQueue<Runnable> getQueue() {
 		return delegate.getQueue();
 	}
 	
 	public List<Runnable> shutdownNow() {
 		return delegate.shutdownNow();
 	}
 	
 	public static void main(String args[]) {
 		Tasks<String> tasks = new Tasks<String>();
 		int nofTasks = 10;
 		final Random random = new Random();
 		for(int counter = 0; counter < nofTasks; ++counter) {
 			tasks.start(new Runnable(){
 				@Override
 				public void run() {
 					try {
 						Thread.sleep(random.nextInt(1000));
 					} catch (InterruptedException e) {
 						e.printStackTrace();
 					}
 				}}, "task " + Integer.toString(counter));
 		}
 		
 		try {
 			tasks.waitForAll();
 		} catch(ClassCastException cce) {
 			System.err.println(cce);
 		} catch(RuntimeException re) {
 			System.err.println(re.getCause());
 		} finally {
 			System.out.println("... exiting");
 			testPool.shutdownNow();
 		}
 	}
 	
 	public static final class Tasks<T> {
 
 	    private final List<RunnableFuture<T>> submittedTasks = new ArrayList<RunnableFuture<T>>();
 
 	    private final TestThreadPoolExecutor exec = testPool;
 
 	    private boolean doneSubmitting;
 	    
 	    volatile boolean forceException = true;
 	    
 		public void start(Runnable task, final T result) {
 			if (doneSubmitting) {
 				throw new IllegalStateException(
 						"Tasks.start() not allowed to be called after Tasks.waitForAll()");
 			}
 			addTask((FutureTask<T>) exec.submit(task, result));
 		}
 		
 		private void addTask(RunnableFuture<T> wrappedTask) {
 			submittedTasks.add(wrappedTask);
 		}
 		
 		public List<T> waitForAll() {
 			doneSubmitting = true;
 			List<T> results = new ArrayList<T>(submittedTasks.size());
 
 			boolean done = false;
 			try {
 				// Go through the whole list to gather the results.
 				for (Future<T> task : submittedTasks) {
 					try {
 						results.add(task.get());
 						if (forceException) {
 							throw new Exception("test exception");
 						}
 					} catch (ExecutionException e) {
 						Throwable t = e.getCause();
 						if (t instanceof RuntimeException) {
 							throw ((RuntimeException) t);
 						} else {
 							throw new RuntimeException(t);
 						}
 					} catch (Exception e) {
 						throw new RuntimeException(e);
 					}
 				}
 				done = true;
 			} finally {
 				if (!done) {
 					for (RunnableFuture<T> future : submittedTasks) {
 						future.cancel(false);
 					}
 				}
 			}
 
 			return results;
 		}
 	}
 }

The configuration is the following (adding RunnableFuture to the additional boot jar classes does not change anything):

Code:

 <?xml version="1.0" encoding="UTF-8"?>
 <con:tc-config xmlns:con="http://www.terracotta.org/config">
   <servers>
     <server host="%i" name="localhost">
       <dso-port bind="0.0.0.0">9510</dso-port>
       <jmx-port bind="0.0.0.0">9520</jmx-port>
       <data>terracotta/server-data</data>
       <logs>terracotta/server-logs</logs>
       <statistics>terracotta/cluster-statistics</statistics>
     </server>
   </servers>
   <clients>
     <logs>terracotta/client-logs</logs>
   </clients>
   <application>
     <dso>
       <instrumented-classes/>
       <additional-boot-jar-classes>
         <include>java.util.concurrent.RunnableFuture</include>
       </additional-boot-jar-classes>
     </dso>
   </application>
 </con:tc-config>

Environment (to make it short, JDK 1.6.0_25, 64b, Windows):
Code:

 awt.toolkit:                               sun.awt.windows.WToolkit
 com.sun.management.jmxremote:              
 com.sun.management.jmxremote.authenticate: false
 file.encoding:                             Cp1252
 file.encoding.pkg:                         sun.io
 file.separator:                            \
 h2.maxFileRetry:                           8
 java.awt.graphicsenv:                      sun.awt.Win32GraphicsEnvironment
 java.awt.printerjob:                       sun.awt.windows.WPrinterJob
 java.class.path:                           C:\eclipse\plugins\org.terracotta.dso_3.5.0.r17406_v20110326\lib\resources;C:\eclipse\plugins\org.terracotta.dso_3.5.0.r17406_v20110326\lib\tc.jar
 java.class.version:                        50.0
 java.endorsed.dirs:                        C:\Java\jdk1.6.0_25\jre\lib\endorsed
 java.ext.dirs:                             C:\Java\jdk1.6.0_25\jre\lib\ext;C:\windows\Sun\Java\lib\ext
 java.home:                                 C:\Java\jdk1.6.0_25\jre
 java.io.tmpdir:                            C:\Users\ADMINI~1\AppData\Local\Temp\
 java.library.path:                         C:\Java\jdk1.6.0_25\bin;.;C:\windows\Sun\Java\bin;C:\windows\system32;C:\windows;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\windows\system32;C:\windows;C:\windows\System32\Wbem;C:\windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\WIDCOMM\Bluetooth Software\;C:\Program Files\WIDCOMM\Bluetooth Software\syswow64;C:\Program Files (x86)\MySQL\MySQL Server 5.1\bin;C:\Program Files\Microsoft Windows Performance Toolkit\;C:\Java\jdk1.6.0_25\bin
 java.rmi.server.randomIDs:                 true
 java.runtime.name:                         Java(TM) SE Runtime Environment
 java.runtime.version:                      1.6.0_25-b06
 java.specification.name:                   Java Platform API Specification
 java.specification.vendor:                 Sun Microsystems Inc.
 java.specification.version:                1.6
 java.vendor:                               Sun Microsystems Inc.
 java.vendor.url:                           http://java.sun.com/
 java.vendor.url.bug:                       http://java.sun.com/cgi-bin/bugreport.cgi
 java.version:                              1.6.0_25
 java.vm.info:                              mixed mode
 java.vm.name:                              Java HotSpot(TM) 64-Bit Server VM
 java.vm.specification.name:                Java Virtual Machine Specification
 java.vm.specification.vendor:              Sun Microsystems Inc.
 java.vm.specification.version:             1.0
 java.vm.vendor:                            Sun Microsystems Inc.
 java.vm.version:                           20.0-b11
 line.separator:                            
 
 os.arch:                                   amd64
 os.name:                                   Windows 7
 os.version:                                6.1
 path.separator:                            ;
 sun.arch.data.model:                       64
 sun.boot.class.path:                       C:\Java\jdk1.6.0_25\jre\lib\resources.jar;C:\Java\jdk1.6.0_25\jre\lib\rt.jar;C:\Java\jdk1.6.0_25\jre\lib\sunrsasign.jar;C:\Java\jdk1.6.0_25\jre\lib\jsse.jar;C:\Java\jdk1.6.0_25\jre\lib\jce.jar;C:\Java\jdk1.6.0_25\jre\lib\charsets.jar;C:\Java\jdk1.6.0_25\jre\lib\modules\jdk.boot.jar;C:\Java\jdk1.6.0_25\jre\classes
 sun.boot.library.path:                     C:\Java\jdk1.6.0_25\jre\bin
 sun.cpu.endian:                            little
 sun.cpu.isalist:                           amd64
 sun.desktop:                               windows
 sun.io.unicode.encoding:                   UnicodeLittle
 sun.java.command:                          com.tc.server.TCServerMain
 sun.java.launcher:                         SUN_STANDARD
 sun.jnu.encoding:                          Cp1252
 sun.management.compiler:                   HotSpot 64-Bit Tiered Compilers
 sun.os.patch.level:                        Service Pack 1
 tc.config:                                 C:tmp\tc-config.xml
 tc.install-root:                           C:\eclipse\plugins\org.terracotta.dso_3.5.0.r17406_v20110326
 tc.server.name:                            localhost
 user.country:                              US
 user.dir:                                  C:\Users\Administrator\test
 user.home:                                 C:\Users\Administrator
 user.language:                             en
 user.name:                                 Administrator
 user.timezone:                             America/Los_Angeles
 user.variant:

This is an old thread and no update from a long time.Please let us know if you are still facing same issue.
Thanks