[JBoss JIRA] (JBAS-9399) URL.getContent() returns VirtualFile instead of ImageProducer in JBoss AS 6.0.0.FINAL

Tuesday, 10 July 2018

    [
https://issues.jboss.org/browse/JBAS-9399?page=com.atlassian.jira.plugin....
] 

Nathan Blomquist commented on JBAS-9399:
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The workaround that was added isn't really a workaround for this.  The issue is that
on a standard JVM (non-JBoss), the SimpleBeanInfo.class works fine.  On JBoss the class
fails.

The SimpleBeanInfo.class is a Java library class. 
https://docs.oracle.com/javase/7/docs/api/java/beans/SimpleBeanInfo.html

In our case it was used in a third party component for which we didn't have code
access.  We actually weren't trying to get the image and didn't care about the
image.  The third party component tried to load it during construction.

...
 URL.getContent() returns VirtualFile instead of ImageProducer in
JBoss AS 6.0.0.FINAL
 -------------------------------------------------------------------------------------

                 Key: JBAS-9399
                 URL: https://issues.jboss.org/browse/JBAS-9399
             Project: Application Server 3  4  5 and 6
          Issue Type: Bug
          Components: VFS
    Affects Versions: 6.0.0.Final
         Environment: Windows XP
            Reporter: Nathan Blomquist
         Attachments: server.log

 URL.getContent() behaves differently within JBoss than it does in a normal JVM.  In our
case, when a jar is used in a normal JVM, URL.getContent() returns an ImageProducer.  When
the same jar is used from within JBoss, a VirtualFile is returned which then causes a
ClassCastException.
 Note: This worked fine in JBoss 4.2.3.GA. 

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