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Re: Jboss AOP classloading bug
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created by <a href="https://community.jboss.org/people/ud1">ud1</a> in <i>JBoss AOP</i> - <a href="https://community.jboss.org/message/726170#726170">View the full discussion</a>
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<div class="jive-rendered-content"><p> I just sichronized calls of registerClassLoader():</p><p>I have created class:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><p>package myapp.aop;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javassist.ClassPool;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import org.jboss.classpool.plugins.jbosscl.JBossClClassPoolConfig;</p><p>import org.jboss.classpool.plugins.jbosscl.JBossClDelegatingClassPoolFactory;</p><p>import org.jboss.classpool.spi.ClassLoaderRegistryHandler;</p><p>import org.jboss.classpool.spi.ClassPoolRepository;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import org.jboss.logging.Logger;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class ClassPoolFactory extends JBossClDelegatingClassPoolFactory</p><p>{</p><p> private final Logger log = Logger.getLogger(ClassPoolFactory.class);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> private class Handler implements ClassLoaderRegistryHandler</p><p> {</p><p> private ClassLoaderRegistryHandler successor;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> public ClassPool registerClassLoader(ClassLoader classLoader)</p><p> {</p><p> ClassPool result;</p><p> synchronized(successor)</p><p> {</p><p> result = successor.registerClassLoader(classLoader);</p><p> }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> if (result == null)</p><p> log.debug("registerClassLoader() returned null, " + classLoader);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> return result;</p><p> }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> public void unregisterClassLoader(ClassLoader classLoader)</p><p> {</p><p> successor.unregisterClassLoader(classLoader);</p><p> }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> public void setSuccessor(ClassLoaderRegistryHandler handler)</p><p> {</p><p> successor = handler;</p><p> }</p><p> }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> public ClassPoolFactory(JBossClClassPoolConfig config)</p><p> {</p><p> super(config.getDomainRegistry(), config.getRegisterModuleCallback());</p><p> config.setClassPoolFactory(this);</p><p> ClassPoolRepository.getInstance().setClassPoolFactory(this);</p><p> }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> public ClassLoaderRegistryHandler create(ClassLoaderRegistryHandler successor)</p><p> {</p><p> ClassLoaderRegistryHandler handler = new Handler();</p><p> handler.setSuccessor(super.create(successor));</p><p> return handler;</p><p> }</p><p>}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and add these lines to the aop.xml file:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>...</p><p>   <classloader name="aop-classloader" xmlns="urn:jboss:classloader:1.0" export-all="NON_EMPTY" import-all="true"></p><p>      ...</p><p>      <root>${jboss.server.home.url}/lib/myapp-aop.jar</root></p><p>   </classloader></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>...</p><p>   <bean name="MyAppClassPoolFactory" class="myapp.ClassPoolFactory"></p><p>      <constructor></p><p>         <parameter></p><p>            <inject bean="JBossClClassPoolConfig"/></p><p>         </parameter></p><p>      </constructor></p><p>   </bean></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>...</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p><p>Probably it should work.</p></div>
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<p style="margin: 0;">Reply to this message by <a href="https://community.jboss.org/message/726170#726170">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in JBoss AOP at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2027">Community</a></p>
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