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<base href="http://www.jacorb.org/bugzilla/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - NullPointerException during ORB initialization"
href="http://www.jacorb.org/bugzilla/show_bug.cgi?id=994">994</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>NullPointerException during ORB initialization
</td>
</tr>
<tr>
<th>Product</th>
<td>JacORB
</td>
</tr>
<tr>
<th>Version</th>
<td>3.5
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Priority</th>
<td>P5
</td>
</tr>
<tr>
<th>Component</th>
<td>ORB
</td>
</tr>
<tr>
<th>Assignee</th>
<td>jacorb-bugs@lists.spline.inf.fu-berlin.de
</td>
</tr>
<tr>
<th>Reporter</th>
<td>franky.bugzilla@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>I'm running multiple ORB instances (each with different properties) within a
single JVM. The differnt ORB instances are initialized in parallel on multiple
threads. All goes well until today where I got a NullPointerException during
orb initialization:
java.lang.NullPointerException
at
org.omg.CONV_FRAME.CodeSetComponentHelper.write(CodeSetComponentHelper.java:68)
at
org.omg.CONV_FRAME.CodeSetComponentInfoHelper.write(CodeSetComponentInfoHelper.java:68)
at
org.jacorb.orb.standardInterceptors.CodeSetInfoInterceptor.<init>(CodeSetInfoInterceptor.java:57)
at
org.jacorb.orb.standardInterceptors.IORInterceptorInitializer.post_init(IORInterceptorInitializer.java:61)
at org.jacorb.orb.ORB.interceptorPostInit(ORB.java:2147)
at org.jacorb.orb.ORB.internalInit(ORB.java:2005)
at org.jacorb.orb.ORB.set_parameters(ORB.java:1953)
at org.omg.CORBA.ORB.init(ORB.java:251)
After some digging in the code, I've found out that the problem lies in
org.jacorb.orb.giop.CodeSet's method "getLocalCodeSetComponentInfo" which is
not correctly implemented for concurrent access: In this method a first thread
can have created "localCodeSetComponentInfo" but not filled in the field
"ForCharData" yet and a second thread can then return this half initialized
"localCodeSetComponentInfo" object as the first check on
"localCodeSetComponentInfo" being null is not within the synchronized block.</pre>
</div>
</p>
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