<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<body link="#355491" alink="#4262a1" vlink="#355491" style="background: #e2e2e2; margin: 0; padding: 20px;">
<div>
<table cellpadding="0" bgcolor="#FFFFFF" border="0" cellspacing="0" style="border: 1px solid #dadada; margin-bottom: 30px; width: 100%; -moz-border-radius: 6px; -webkit-border-radius: 6px;">
<tbody>
<tr>
<td>
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" style="border: solid 2px #ccc; background: #dadada; width: 100%; -moz-border-radius: 6px; -webkit-border-radius: 6px;">
<tbody>
<tr>
<td bgcolor="#000000" valign="middle" height="58px" style="border-bottom: 1px solid #ccc; padding: 20px; -moz-border-radius-topleft: 3px; -moz-border-radius-topright: 3px; -webkit-border-top-right-radius: 5px; -webkit-border-top-left-radius: 5px;">
<h1 style="color: #333333; font: bold 22px Arial, Helvetica, sans-serif; margin: 0; display: block !important;">
<!-- To have a header image/logo replace the name below with your img tag -->
<!-- Email clients will render the images when the message is read so any image -->
<!-- must be made available on a public server, so that all recipients can load the image. -->
<a href="https://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
</td>
</tr>
<tr>
<td bgcolor="#FFFFFF" style="font: normal 12px Arial, Helvetica, sans-serif; color:#333333; padding: 20px; -moz-border-radius-bottomleft: 4px; -moz-border-radius-bottomright: 4px; -webkit-border-bottom-right-radius: 5px; -webkit-border-bottom-left-radius: 5px;"><h3 style="margin: 10px 0 5px; font-size: 17px; font-weight: normal;">
Unexpected error during load of:javax.management.MBeanAttributeInfo: java.lang.LinkageError: loader constraint violation:
</h3>
<span style="margin-bottom: 10px;">
created by <a href="https://community.jboss.org/people/brucesanders63">Bruce Sanders</a> in <i>Beginner's Corner</i> - <a href="https://community.jboss.org/message/833429#833429">View the full discussion</a>
</span>
<hr style="margin: 20px 0; border: none; background-color: #dadada; height: 1px;">
<div class="jive-rendered-content"><p>I'm running JBoss 6.1 Final on an XP machine w/SP3.  I'm using MyEcplise instead of Eclipse.  In the last couple of weeks I'm starting to get the above error when deploying the bean.   There are two other developers on our team w/the same setup that do not get any errors deploying the same source code/bean.  I have copied another developer's JBOSS 6.1 code to my computer and the issue goes away.  That developer is using the same code.  FYI:  The javasource code has no errors.  I'm trying to run jboss from the command prompt but I get a java_home is not set even though it is and it start's up in MyEclipse without a problem.  Below is the complete exception dump.  I've found nothing on goggle regarding this issue.  By the way, the below exception is constantly repeated as though it's trying to redeploy the bean.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>09:22:01,367 WARN  [org.jboss.detailed.classloader.ClassLoaderManager] Unexpected error during load of:javax.management.MBeanAttributeInfo: java.lang.LinkageError: loader constraint violation: loader (instance of org/jboss/classloader/spi/base/BaseClassLoader) previously initiated loading for a different type with name "javax/management/MBeanAttributeInfo"</p><p>          at java.lang.ClassLoader.defineClass1(Native Method) [:1.6.0_13]</p><p>          at java.lang.ClassLoader.defineClass(ClassLoader.java:621) [:1.6.0_13]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoader.access$200(BaseClassLoader.java:52) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoader$2.run(BaseClassLoader.java:650) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoader$2.run(BaseClassLoader.java:609) [jboss-classloader.jar:2.2.1.GA]</p><p>          at java.security.AccessController.doPrivileged(Native Method) [:1.6.0_13]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoader.loadClassLocally(BaseClassLoader.java:608) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoader.loadClassLocally(BaseClassLoader.java:585) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseDelegateLoader.loadClass(BaseDelegateLoader.java:156) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.filter.FilteredDelegateLoader.doLoadClass(FilteredDelegateLoader.java:141) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.filter.FilteredDelegateLoader.loadClass(FilteredDelegateLoader.java:132) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.ClassLoadingTask$ThreadTask.run(ClassLoadingTask.java:461) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.ClassLoaderManager.nextTask(ClassLoaderManager.java:262) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.ClassLoaderManager.process(ClassLoaderManager.java:161) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:280) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:1172) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoader.loadClassFromDomain(BaseClassLoader.java:886) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoader.doLoadClass(BaseClassLoader.java:505) [jboss-classloader.jar:2.2.1.GA]</p><p>          at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:450) [jboss-classloader.jar:2.2.1.GA]</p><p>          at java.lang.ClassLoader.loadClass(ClassLoader.java:252) [:1.6.0_13]</p><p>          at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) [:1.6.0_13]</p><p>          at java.lang.Class.getDeclaredConstructors0(Native Method) [:1.6.0_13]</p><p>          at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389) [:1.6.0_13]</p><p>          at java.lang.Class.getDeclaredConstructors(Class.java:1836) [:1.6.0_13]</p><p>          at org.jboss.reflect.plugins.introspection.IntrospectionTypeInfoFactoryImpl.getDeclaredConstructors(IntrospectionTypeInfoFactoryImpl.java:576) [jboss-reflect.jar:2.2.1.SP1]</p><p>          at org.jboss.reflect.plugins.introspection.IntrospectionTypeInfoFactoryImpl.getConstructors(IntrospectionTypeInfoFactoryImpl.java:134) [jboss-reflect.jar:2.2.1.SP1]</p><p>          at org.jboss.reflect.plugins.ClassInfoImpl.getDeclaredConstructors(ClassInfoImpl.java:446) [jboss-reflect.jar:2.2.1.SP1]</p><p>          at org.jboss.scanning.plugins.visitor.ClassHierarchyResourceVisitor.handleClass(ClassHierarchyResourceVisitor.java:79) [:1.0.0.GA]</p><p>          at org.jboss.scanning.plugins.visitor.ReflectResourceVisitor.doVisit(ReflectResourceVisitor.java:108) [:1.0.0.GA]</p><p>          at org.jboss.scanning.plugins.visitor.ReflectResourceVisitor.visit(ReflectResourceVisitor.java:86) [:1.0.0.GA]</p><p>          at org.jboss.scanning.annotations.plugins.AnnotationsScanningPlugin.visit(AnnotationsScanningPlugin.java:89) [:1.0.0.GA]</p><p>          at org.jboss.scanning.spi.helpers.ScanningPluginWrapper.visit(ScanningPluginWrapper.java:112) [:1.0.0.GA]</p><p>          at org.jboss.classloading.plugins.visitor.FederatedResourceVisitor.visit(FederatedResourceVisitor.java:101) [jboss-classloading.jar:2.2.1.GA]</p><p>          at org.jboss.classloading.plugins.vfs.VFSResourceVisitor.visit(VFSResourceVisitor.java:264) [jboss-classloading-vfs.jar:2.2.1.GA]</p><p>          at org.jboss.vfs.VirtualFile.visit(VirtualFile.java:409) [jboss-vfs.jar:3.0.1.GA]</p><p>          at org.jboss.vfs.VirtualFile.visit(VirtualFile.java:411) [jboss-vfs.jar:3.0.1.GA]</p><p>          at org.jboss.vfs.VirtualFile.visit(VirtualFile.java:411) [jboss-vfs.jar:3.0.1.GA]</p><p>          at org.jboss.vfs.VirtualFile.visit(VirtualFile.java:397) [jboss-vfs.jar:3.0.1.GA]</p><p>          at org.jboss.classloading.plugins.vfs.VFSResourceVisitor.visit(VFSResourceVisitor.java:102) [jboss-classloading-vfs.jar:2.2.1.GA]</p><p>          at org.jboss.deployers.vfs.plugins.classloader.VFSDeploymentClassLoaderPolicyModule.visit(VFSDeploymentClassLoaderPolicyModule.java:181) [:2.2.2.GA]</p><p>          at org.jboss.scanning.plugins.DeploymentUnitScanner.scan(DeploymentUnitScanner.java:111) [:1.0.0.GA]</p><p>          at org.jboss.scanning.spi.helpers.UrlScanner.scan(UrlScanner.java:96) [:1.0.0.GA]</p><p>          at org.jboss.scanning.deployers.ScanningDeployer.deploy(ScanningDeployer.java:95) [:1.0.0.GA]</p><p>          at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:179) [:2.2.2.GA]</p><p>          at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1832) [:2.2.2.GA]</p><p>          at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1550) [:2.2.2.GA]</p><p>          at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1491) [:2.2.2.GA]</p><p>          at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:379) [jboss-dependency.jar:2.2.0.SP2]</p><p>          at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:2044) [jboss-dependency.jar:2.2.0.SP2]</p><p>          at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:1083) [jboss-dependency.jar:2.2.0.SP2]</p><p>          at org.jboss.dependency.plugins.AbstractController.executeOrIncrementStateDirectly(AbstractController.java:1322) [jboss-dependency.jar:2.2.0.SP2]</p><p>          at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1246) [jboss-dependency.jar:2.2.0.SP2]</p><p>          at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1139) [jboss-dependency.jar:2.2.0.SP2]</p><p>          at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:939) [jboss-dependency.jar:2.2.0.SP2]</p><p>          at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:654) [jboss-dependency.jar:2.2.0.SP2]</p><p>          at org.jboss.deployers.plugins.deployers.DeployersImpl.change(DeployersImpl.java:1983) [:2.2.2.GA]</p><p>          at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:1076) [:2.2.2.GA]</p><p>          at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:679) [:2.2.2.GA]</p><p>          at org.jboss.system.server.profileservice.deployers.MainDeployerPlugin.process(MainDeployerPlugin.java:106) [:6.1.0.Final]</p><p>          at org.jboss.profileservice.dependency.ProfileControllerContext$DelegateDeployer.process(ProfileControllerContext.java:143) [:0.2.2]</p><p>          at org.jboss.profileservice.deployment.hotdeploy.HDScanner$HDScanAction.deploy(HDScanner.java:240) [:0.2.2]</p><p>          at org.jboss.profileservice.deployment.hotdeploy.HDScanner$HDScanAction.complete(HDScanner.java:192) [:0.2.2]</p><p>          at org.jboss.profileservice.management.TwoPCActionWrapper.doComplete(TwoPCActionWrapper.java:57) [:0.2.2]</p><p>          at org.jboss.profileservice.management.actions.AbstractTwoPhaseModificationAction.complete(AbstractTwoPhaseModificationAction.java:74) [:0.2.2]</p><p>          at org.jboss.profileservice.management.actions.AbstractTwoPhaseModificationAction.prepare(AbstractTwoPhaseModificationAction.java:95) [:0.2.2]</p><p>          at org.jboss.profileservice.management.ModificationSession.prepare(ModificationSession.java:87) [:0.2.2]</p><p>          at org.jboss.profileservice.management.AbstractActionController.internalPerfom(AbstractActionController.java:234) [:0.2.2]</p><p>          at org.jboss.profileservice.management.AbstractActionController.performWrite(AbstractActionController.java:213) [:0.2.2]</p><p>          at org.jboss.profileservice.management.AbstractActionController.perform(AbstractActionController.java:150) [:0.2.2]</p><p>          at org.jboss.profileservice.management.AbstractActionController.perform(AbstractActionController.java:135) [:0.2.2]</p><p>          at org.jboss.profileservice.deployment.hotdeploy.HDScanner.scan(HDScanner.java:146) [:0.2.2]</p><p>          at org.jboss.profileservice.deployment.hotdeploy.HDScanner.run(HDScanner.java:90) [:0.2.2]</p><p>          at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) [:1.6.0_13]</p><p>          at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317) [:1.6.0_13]</p><p>          at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150) [:1.6.0_13]</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98) [:1.6.0_13]</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:181) [:1.6.0_13]</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:205) [:1.6.0_13]</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_13]</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_13]</p><p>          at java.lang.Thread.run(Thread.java:619) [:1.6.0_13]</p></div>
<div style="background-color: #f4f4f4; padding: 10px; margin-top: 20px;">
<p style="margin: 0;">Reply to this message by <a href="https://community.jboss.org/message/833429#833429">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in Beginner's Corner at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2075">Community</a></p>
</div></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>