I deployed a webapp(springframework 3.0.8) on tomcat in debug mode.
Then I tried to run a main() in a file inside the same progect by pressing shift+F6 inside netbeans while the class is open in editor and the focus(cursor) is inside editor.
The project is maven based.
Then the error prompts(asking me to report the bug) and says: 


java.lang.IllegalStateException: Fold has been already finished.
	at org.netbeans.core.output2.NbIO$IOFoldingImpl$NbIoFoldHandleDefinition.finish(NbIO.java:594)
	at org.openide.windows.FoldHandle.finish(FoldHandle.java:69)
	at org.netbeans.modules.maven.execute.cmd.ExecutionEventObject$Tree.finishFold(ExecutionEventObject.java:223)
	at org.netbeans.modules.maven.execute.CommandLineOutputHandler.processExecEvent(CommandLineOutputHandler.java:437)
	at org.netbeans.modules.maven.execute.CommandLineOutputHandler.trimTree(CommandLineOutputHandler.java:525)
	at org.netbeans.modules.maven.execute.CommandLineOutputHandler.completeTreeAtEnd(CommandLineOutputHandler.java:398)
	at org.netbeans.modules.maven.execute.CommandLineOutputHandler.access$1300(CommandLineOutputHandler.java:90)
	at org.netbeans.modules.maven.execute.CommandLineOutputHandler$Output.run(CommandLineOutputHandler.java:345)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
	at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to
	at org.openide.util.RequestProcessor.post(RequestProcessor.java:424)
	at org.netbeans.modules.maven.execute.CommandLineOutputHandler.setStdOut(CommandLineOutputHandler.java:168)
	at org.netbeans.modules.maven.execute.MavenCommandLineExecutor.run(MavenCommandLineExecutor.java:212)
[catch] at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:153)








-------------------- this is the output of executing the file:
                                                                      
------------------------------------------------------------------------
Building AuthenticationServer 1.1.0
------------------------------------------------------------------------

--- exec-maven-plugin:1.2.1:exec (default-cli) @ authenticationServer ---
java.lang.NoClassDefFoundError: com/ibm/mq/MQException
Caused by: java.lang.ClassNotFoundException: com.ibm.mq.MQException
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: com.sabapardazesh.authenticationServer.test.orm.MQSendMessage.  Program will exit.
Exception in thread "main" [INFO] NETBEANS-ExecEvent:{"mojo":{"id":"org.codehaus.mojo:exec-maven-plugin:1.2.1","source":"CLI","execId":"default-cli","goal":"exec"},"exc":{"msg":"Q29tbWFuZCBleGVjdXRpb24gZmFpbGVkLg=="},"type":"MojoFailed"}