[Wrapper-user] Wrapper not recognising socket exception

[Richard W. <ri...@mi...>]

Hi,

I have a problem where the wrapper is failing to start correctly because it cannot open the JVM communications socket on port 31000. With debug on, the log contains:

>>> 

Launching a JVM...
Starting the Mule Server...
WrapperManager class initialized by thread: main  Using classloader: sun.misc.Launcher$AppClassLoader@1855af5
Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org
  Copyright 1999-2006 Tanuki Software, Inc.  All Rights Reserved.
 
Wrapper Manager: JVM #1
Running a 32-bit JVM.
Wrapper Manager: Registering shutdown hook
Wrapper Manager: Using wrapper
Load native library.  One or more attempts may fail if platform specific libraries do not exist.
Loaded native library: libwrapper-solaris-sparc-32.so
Calling native initialization method.
Inside native WrapperManager initialization method
Java Version   : 1.5.0_06-b05 Java HotSpot(TM) Server VM
Java VM Vendor : Sun Microsystems Inc.
 
Control event monitor thread started.
Startup runner thread started.
WrapperManager.start(org.mule.module.boot.MuleServerWrapper@1256ea2, args["console0"]) called by thread: main
Communications runner thread started.
Open socket to wrapper...Wrapper-Connection
java.net.SocketException: Address already in use
Open socket to wrapper...Wrapper-Connection
java.net.SocketException: Address already in use
Open socket to wrapper...Wrapper-Connection
java.net.SocketException: Address already in use
…
 
<<< 
 
I guess it is trying to open a socket on port 31000 but failing. However, it is not recognising the exception correctly in order to try the next available port number. Instead, I believe it is trying the same port number indefinitely.

The problem seems to be the logic inside WrapperManager.openSocket(), which looks for either a BindException or an exception with "errno: 48" in the message. In this case there is neither.

I am running the wrapper version 3.2.3 as part of a Mule 2.1.2 installation on a Fujitsu/Sparc/Solaris server.
Uname –a returns: SunOS xxxxxxx 5.10 Generic_125100-10 sun4us sparc FJSV,GPUZC-M
 
regards
Richard.