#222 JVM fails to start

[Anonymous]

I downloaded and installed JDK 6 V7, as instructed by my college's professors. Most people didn't have any problems with it, but under the interactions panel these words appear:

> JVM failed to start. Make sure a firewall is not blocking
inter-process communication. See the console tab for details.

Under the console tab, the following lines of text appear:

java.util.concurrent.ExecutionException: edu.rice.cs.plt.lambda.WrappedException: java.rmi.server.ExportException: Listen failed on port: 0; nested exception is:
java.net.SocketException: Permission denied: listen failed
at edu.rice.cs.plt.concurrent.TaskController.finishedWithTaskException(TaskController.java:263)
at edu.rice.cs.plt.concurrent.ProcessTaskController$1.run(ProcessTaskController.java:143)
at java.lang.Thread.run(Unknown Source)
Caused by: edu.rice.cs.plt.lambda.WrappedException: java.rmi.server.ExportException: Listen failed on port: 0; nested exception is:
java.net.SocketException: Permission denied: listen failed
at edu.rice.cs.plt.concurrent.ConcurrentUtil$ExportRemoteTask.value(ConcurrentUtil.java:622)
at edu.rice.cs.plt.concurrent.ConcurrentUtil$ExportRemoteTask.value(ConcurrentUtil.java:616)
at edu.rice.cs.plt.concurrent.ProcessTaskController$Runner.main(ProcessTaskController.java:213)
Caused by: java.rmi.server.ExportException: Listen failed on port: 0; nested exception is:
java.net.SocketException: Permission denied: listen failed
at sun.rmi.transport.tcp.TCPTransport.listen(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.exportObject(Unknown Source)
at sun.rmi.transport.tcp.TCPEndpoint.exportObject(Unknown Source)
at sun.rmi.transport.LiveRef.exportObject(Unknown Source)
at sun.rmi.server.UnicastServerRef.exportObject(Unknown Source)
at java.rmi.server.UnicastRemoteObject.exportObject(Unknown Source)
at java.rmi.server.UnicastRemoteObject.exportObject(Unknown Source)
at edu.rice.cs.plt.concurrent.ConcurrentUtil$ExportRemoteTask.value(ConcurrentUtil.java:621)
... 2 more
Caused by: java.net.SocketException: Permission denied: listen failed
at java.net.PlainSocketImpl.socketListen(Native Method)
at java.net.PlainSocketImpl.listen(Unknown Source)
at java.net.ServerSocket.bind(Unknown Source)
at java.net.ServerSocket.<init>(Unknown Source)
at java.net.ServerSocket.<init>(Unknown Source)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createServerSocket(Unknown Source)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createServerSocket(Unknown Source)
at sun.rmi.transport.tcp.TCPEndpoint.newServerSocket(Unknown Source)
... 10 more

Is there anyone who knows how to solve it?

[Mathias Ricken]

DrJava uses some networking functionality to communicate with itself. Your firewall may be blocking the communication, resulting in odd behavior. Please unblock DrJava, allowing it to communicate locally, and see if that solves your problem. If not, post another comment here and we will try to help.

Thanks,
The DrJava Team

[Nobody/Anonymous]

I'm using a Norman anti-virus software, but after disabling both its firewall and the windows firewall, Dr Java still cannot work. Appreciate any help I can get, thanks!