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<p style="margin: 10px 0 0 0">According to the documentation for the javassist.ClassPool#getClassLoader() method:</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">Get the classloader for <code>toClass()</code>, <code>getAnnotations()</code> in <code>CtClass</code>, etc.
The default is the context class loader.</pre>
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<p style="margin: 10px 0 0 0">And for javassist.ClassPool#toClass()</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">To load the class, this method uses the context class loader of the current thread. It is obtained by calling <code>getClassLoader()</code>.
This behavior can be changed by subclassing the pool and changing the <code>getClassLoader()</code> method.
If the program is running on some application server, the context class loader might be inappropriate to load the class.</pre>
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<p style="margin: 10px 0 0 0">In this particluar issue, the @ManyToOne annotation that comes out of the ClassPool is in the class loader for the current thread (from the maven plugin) while the target entity is in the loading classloader. We want to use the loading classloader everywhere, so we need to subclass the ClassPool.</p>
<p style="margin: 10px 0 0 0">Thanks for the reproducer. It was really helpful.</p>
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