[jboss-as7-dev] In JBoss AS 7, got an error of Native Library xxx already loaded in another classloader

[M. Steven]

Hi, 


I am working on migrating an App from JBoss 4.2.3 to JBoss AS 7.1.1.  Now I am facing a problem says "Native Library xxx already loaded in another classloader". 

To be specific: Here are the errors: 

11:22:17,854 ERROR [stderr] (http--127.0.0.1-80-4) Caused by: java.lang.UnsatisfiedLinkError: Native Library E:\programs\jdk1.6.0_29\jre\bin\jpeg.dll already loaded in another classloader
11:22:17,855 ERROR [stderr] (http--127.0.0.1-80-4)     at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1772)
11:22:17,856 ERROR [stderr] (http--127.0.0.1-80-4)     at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1724)
11:22:17,856 ERROR [stderr] (http--127.0.0.1-80-4)     at java.lang.Runtime.loadLibrary0(Runtime.java:823)
11:22:17,857 ERROR [stderr] (http--127.0.0.1-80-4)     at java.lang.System.loadLibrary(System.java:1028)
11:22:17,857 ERROR [stderr] (http--127.0.0.1-80-4)     at sun.security.action.LoadLibraryAction.run(Unknown Source)
11:22:17,858 ERROR [stderr] (http--127.0.0.1-80-4)     at java.security.AccessController.doPrivileged(Native Method)
11:22:17,859 ERROR [stderr] (http--127.0.0.1-80-4)     at sun.awt.image.codec.JPEGImageDecoderImpl.<clinit>(Unknown Source)
11:22:17,859 ERROR [stderr] (http--127.0.0.1-80-4)     at com.sun.image.codec.jpeg.JPEGCodec.createJPEGDecoder(Unknown Source)
11:22:17,860 ERROR [stderr] (http--127.0.0.1-80-4)     at com.sun.media.jai.codecimpl.JPEGImage.<init>(JPEGImageDecoder.java:106)
11:22:17,861 ERROR [stderr] (http--127.0.0.1-80-4)     at com.sun.media.jai.codecimpl.JPEGImageDecoder.decodeAsRenderedImage(JPEGImageDecoder.java:46)
11:22:17,862 ERROR [stderr] (http--127.0.0.1-80-4)     at com.sun.media.jai.opimage.CodecRIFUtil.create(CodecRIFUtil.java:88)
11:22:17,865 ERROR [stderr] (http--127.0.0.1-80-4)     at com.sun.media.jai.opimage.JPEGRIF.create(JPEGRIF.java:43)
11:22:17,867 ERROR [stderr] (http--127.0.0.1-80-4)     ... 114 more

The same App runs well under JBoss 4.2.3.  I am wondering if the error is caused by the Modularized class loading in JBoss AS7? 


Could someone please give me some advices on how to resolve the problem? 


Thanks a lot in advance. 


Regards, 


Michael
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