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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-9179" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-ac6e2088-0004-4b6b-9d44-3e319edca022" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-9179" style="color: #3b73af; text-decoration: none">HHH-9179</a>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-9179" style="color: #3b73af; text-decoration: none">Missing classloader reference for classpool in javassist runtime weaving</a> </span>
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Issue Type:
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<td class="has-icon" style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-bug-ac6e2088-0004-4b6b-9d44-3e319edca022" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /> Bug
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Affects Versions:
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4.2.12
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Assignee:
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Unassigned
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Components:
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core
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Created:
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12/May/14 6:33 AM
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Environment:
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IBM WebSphere 8.5
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Labels:
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javassist
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Priority:
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Reporter:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="pabouil" id="email_pabouil" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=pabouil" style="color:#6c797f;; color: #3b73af; text-decoration: none">Patrice Bouillet</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">In our environment with IBM WAS 8.5, we get the following exception upon activating the hibernate.ejb.use_class_enhancer option:</p>
<div class="preformatted panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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<pre style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-word; white-space: pre-wrap">[5/12/14 15:23:16:774 CEST] 00000034 JPAPUnitInfo E CWWJP0014E: An illegal format has been detected during the class transformation for the ...xxx... class. The class has not been transformed.
[5/12/14 15:23:16:787 CEST] 00000034 JavassistClas Z org.hibernate.bytecode.internal.javassist.JavassistClassTransformer doTransform HHH000373: Unable to transform class: cannot find ...xxx...
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This is due to a missing classpath in the created classpool in class JavassistClassTransformer:</p>
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
ClassPool cp = <span class="code-keyword" style="color: #000091">new</span> ClassPool();
cp.appendSystemPath();
cp.appendClassPath(<span class="code-keyword" style="color: #000091">new</span> ClassClassPath(<span class="code-keyword" style="color: #000091">this</span>.getClass()));
cp.appendClassPath(<span class="code-keyword" style="color: #000091">new</span> ClassClassPath(classfile.getClass()));
<span class="code-comment" style="color: #808080">// the following class path is <span class="code-keyword" style="color: #000091; color: #808080">new</span> and includes the passed classloader from the method parameters
</span>cp.appendClassPath(<span class="code-keyword" style="color: #000091">new</span> LoaderClassPath(loader));
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The problem occurs because we have hibernate defined in a shared library and not included directly in the application itself. Thus it's not possible through the hibernate classloader to find the needed application classes. With the aforementioned change, the runtime weaving is working as expected.</p>
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