| Re: [aspectj-users] AspectJ LTW problem with JMX |
I used a Java Agent to see the impact of JMX on classloaders, and to understand why the configuration is not found. The configuration is searched with java.lang.ClassLoader.getResource(String). When I activate JMX remote, the classloaders hierarchy is (containsConfiguration means that Aspectj configuration is found): - root - AdaptorKey [sysHashCode=1672527304, loaderClass=javax.management.remote.rmi.NoCallStackClassLoader, containsConfiguration=false, hasParent=false] - AdaptorKey [sysHashCode=1040288884, loaderClass=sun.reflect.DelegatingClassLoader, containsConfiguration=false, hasParent=false] - AdaptorKey [sysHashCode=239625678, loaderClass=sun.reflect.DelegatingClassLoader, containsConfiguration=false, hasParent=false] - AdaptorKey [sysHashCode=1818873899, loaderClass=javax.management.remote.rmi.NoCallStackClassLoader, containsConfiguration=false, hasParent=false] - AdaptorKey [sysHashCode=527532737, loaderClass=sun.misc.Launcher$ExtClassLoader, containsConfiguration=false, hasParent=false] - AdaptorKey [sysHashCode=132787710, loaderClass=sun.misc.Launcher$AppClassLoader, containsConfiguration=true, hasParent=true] - AdaptorKey [sysHashCode=426901684, loaderClass=sun.reflect.DelegatingClassLoader, containsConfiguration=false, hasParent=false] Without JMX remote activated, the classloaders hierarchy is: - root - AdaptorKey [sysHashCode=527532737, loaderClass=sun.misc.Launcher$ExtClassLoader, containsConfiguration=false, hasParent=false] - AdaptorKey [sysHashCode=132787710, loaderClass=sun.misc.Launcher$AppClassLoader, containsConfiguration=true, hasParent=true] With this results… I still don’t understand what’s happening. The configuration is found by my agent but not by Aspectj… The logs activated I see that AspectJ register no other classloader but javax.management.remote.rmi.NoCallStackClassLoader. Why? De : aspectj-users-bounces@xxxxxxxxxxx [mailto:aspectj-users-bounces@xxxxxxxxxxx] De la part de Tugdual JULLIEN Thanks Andy, I tried this solution, but then I have a runtime error : java.lang.RuntimeException: Cannot register non aspect: org$iiter$continuum$org$iiter$continuum$protos$aspects$Monitoring , org.iiter.continuum.org.iiter.continuum.protos.aspects.Monitoring at org.aspectj.weaver.bcel.BcelWeaver.addLibraryAspect(BcelWeaver.java:221) at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.registerAspects(ClassLoaderWeavingAdaptor.java:478) at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.registerDefinitions(ClassLoaderWeavingAdaptor.java:303) at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.initialize(ClassLoaderWeavingAdaptor.java:170) at org.aspectj.weaver.loadtime.Aj$ExplicitlyInitializedClassLoaderWeavingAdaptor.initialize(Aj.java:313) at org.aspectj.weaver.loadtime.Aj$ExplicitlyInitializedClassLoaderWeavingAdaptor.getWeavingAdaptor(Aj.java:318) at org.aspectj.weaver.loadtime.Aj$WeaverContainer.getWeaver(Aj.java:292) at org.aspectj.weaver.loadtime.Aj.preProcess(Aj.java:103) at org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter.transform(ClassPreProcessorAgentAdapter.java:54) at sun.instrument.TransformerManager.transform(TransformerManager.java:169) at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:365) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) at java.lang.ClassLoader.defineClass(ClassLoader.java:616) at javax.management.remote.rmi.NoCallStackClassLoader.findClass(NoCallStackClassLoader.java:108) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at javax.management.remote.rmi.RMIConnector$1.run(RMIConnector.java:2065) at java.security.AccessController.doPrivileged(Native Method) at javax.management.remote.rmi.RMIConnector.<clinit>(RMIConnector.java:2086) at javax.management.remote.rmi.RMIConnectorServer.objectToBind(RMIConnectorServer.java:728) at javax.management.remote.rmi.RMIConnectorServer.start(RMIConnectorServer.java:392) at sun.management.jmxremote.ConnectorBootstrap.exportMBeanServer(ConnectorBootstrap.java:716) at sun.management.jmxremote.ConnectorBootstrap.initialize(ConnectorBootstrap.java:396) at sun.management.Agent.startAgent(Agent.java:127) at sun.management.Agent.startAgent(Agent.java:239) This is the same aop.xml that I use in my aspect jar. The only things I changed are: - Activation of JMX remote - Copy the aop.xml in my app directory - Add the parameter to the commande line The commande line is: "C:\Program Files\Java\jdk1.6.0_22\bin\java" -javaagent:.\libs\aspectjweaver-1.7.3.jar -cp ".\libs\ProtoApp-v0.0.1-SNAPSHOT.jar;.\libs\*" -Xms64m -Xmx512m -XX:MaxPermSize=128m -Daj.weaving.verbose=true -Dorg.aspectj.weaver.showWeaveInfo=true -Dorg.aspectj.weaver.loadtime.configuration=file:./aop.xml -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=7777 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dlogback.configurationFile=file:.\logback.xml org.iiter.continuum.protos.simple.App The aspect jar is in my classpath (in the libs directory). I tried to specify the aspect path with these options: -Daj.class.path=.\libs -Daj.aspect.path=.\libs\org.iiter.continuum.protos.aspects-0.0.1-SNAPSHOT.jar But it doesn’t work… Any hint for this ? (I hope I’m missing something) De : aspectj-users-bounces@xxxxxxxxxxx [mailto:aspectj-users-bounces@xxxxxxxxxxx] De la part de Andy Clement > It seems that the classloader are different: sun.misc.Launcher$AppClassLoader without JMX, javax.management.remote.rmi.NoCallStackClassLoader with JMX. Could it be the cause? This is very likely the cause. Typically AspectJ will look for the aop.xml via a getResources("META-INF/aop.xml") call on the classloader. If the classloader doesn't implement getResources in a good way, the file won't be found. As an alternative (as I look at the AJ source code) you might be able to specify a file path for it: -Dorg.aspectj.weaver.loadtime.configuration=file:/path/to/my/aop.xml cheers, Andy On 22 July 2013 03:21, Tugdual JULLIEN <tugdual.jullien@xxxxxxxx> wrote: Hello, I tried to do a simple project (hello world) with a simple aspect. I use Maven to build this project, LTW for the aspect, logback for the logs. The aspect is weaved when I use: "C:\Program Files\Java\jdk1.6.0_22\bin\java" -javaagent:.\libs\aspectjweaver-1.7.3.jar -cp ".\libs\ProtoApp-v0.0.1-SNAPSHOT.jar;.\libs\*" -Xms64m -Xmx512m -XX:MaxPermSize=128m -Daj.weaving.verbose=true -Dorg.aspectj.weaver.showWeaveInfo=true -Dlogback.configurationFile=file:.\logback.xml org.iiter.continuum.protos.simple.App But when I add parameters for JMX, the aspect is not weaved anymore: "C:\Program Files\Java\jdk1.6.0_22\bin\java" -javaagent:.\libs\aspectjweaver-1.7.3.jar -cp ".\libs\ProtoApp-v0.0.1-SNAPSHOT.jar;.\libs\*" -Xms64m -Xmx512m -XX:MaxPermSize=128m -Daj.weaving.verbose=true -Dorg.aspectj.weaver.showWeaveInfo=true -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=7777 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dlogback.configurationFile=file:.\logback.xml org.iiter.continuum.protos.simple.App I can’t figure what’s happening, if any of you could help me. The options for JMX remote I added are: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=7777 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false Tugdual PS: I tried for an OSGI app (equinox) and it works fine with this parameters for JMX, but I really need for a regular Java application. PPS : I posted my question in stackoverflow: http://stackoverflow.com/questions/17784939/aspectj-ltw-not-working-with-jmx-remote De : aspectj-users-bounces@xxxxxxxxxxx [mailto:aspectj-users-bounces@xxxxxxxxxxx] De la part de Tugdual JULLIEN Hello everybody, When I start my application (console) with the weaver agent, without JMX, everything is fine, with JMX the aspect configuration is not found. I use Aspectj 1.7.3 (I tried version 1.7.0 and 1.7.1). The aspect configuration is done by the file META-INF/aop.xml which contains the weaver options: -Xlint:ignore -Xset:weaveJavaPackages=false,weaveJavaxPackages=false I searched and tried several solutions: - The aop.xml is not in the right place: moving the aop.xml in the sources in META-INF, generating with -outxml - The aspect configuration name: renaming aop.xml to aop-ajc.xml - There is classloader problems: I added the option -Djava.system.class.loader=org.aspectj.weaver.loadtime.WeavingURLClassLoader - AspectJ can’t find the jar with aspect: I added the options "-Daj.class.path=.\libs\*" "-Daj.aspect.path=.\libs\org.iiter.aspects.monitoring-0.0.1-SNAPSHOT.jar" The problem is still here… It seems that the classloader are different: sun.misc.Launcher$AppClassLoader without JMX, javax.management.remote.rmi.NoCallStackClassLoader with JMX. Could it be the cause? My projects are built with Maven. For the aspect, I use this plugin: <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>aspectj-maven-plugin</artifactId> <version>${aspectj.plugin.version}</version> <configuration> <complianceLevel>${maven.compiler.source}</complianceLevel> <source>${maven.compiler.source}</source> <target>${maven.compiler.target}</target> </configuration> <executions> <execution> <goals> <goal>compile</goal> <goal>test-compile</goal> </goals> </execution> </executions> <dependencies> <!-- Ensure aspectj tools version used by compiler is the same version used as dependency. Avoids warning --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjtools</artifactId> <version>${aspectj.rt.version}</version> </dependency> </dependencies> </plugin> All my jars (aspect, application and frameworks like slf4j and Spring) are in a “libs” directory. When I start my application without JMX: java -javaagent:.\libs\aspectjweaver-1.7.3.jar -cp ".\libs\application.jar;.\libs\*" -Xms64m -Xmx512m -XX:MaxPermSize=128m -Djava.system.class.loader=org.aspectj.weaver.loadtime.WeavingURLClassLoader -Daj.weaving.verbose=true -Dorg.aspectj.weaver.showWeaveInfo=true "-Daj.class.path=.\libs\*" "-Daj.aspect.path=.\libs\org.iiter.aspects.monitoring-0.0.1-SNAPSHOT.jar" -Dlogback.configurationFile=file:.\logback.xml org.iiter.application.Launcher I get this logs: [AppClassLoader@64601bb1] info AspectJ Weaver Version 1.7.3 built on Thursday Jun 13, 2013 at 19:41:31 GMT [AppClassLoader@64601bb1] info register classloader sun.misc.Launcher$AppClassLoader@64601bb1 [AppClassLoader@64601bb1] info using configuration file:/C:/ compiled/application/libs/org.iiter.aspects.monitoring-0.0.1-SNAPSHOT.jar!/META-INF/aop.xml [AppClassLoader@64601bb1] info register aspect org.iiter.aspects.monitoring.ContainerMonitoring [AppClassLoader@64601bb1] warning javax.* types are not being woven because the weaver option '-Xset:weaveJavaxPackages=true' has not been specified [AppClassLoader@64601bb1] weaveinfo Join point 'method-execution(void org.iiter.application.ContainerManager.start())' in Type 'org.iiter.application.ContainerManager' (ContainerManager.java:78) advised by before advice from 'org.iiter.aspects.monitoring.ContainerMonitoring' (ContainerMonitoring.aj:23) [AppClassLoader@64601bb1] weaveinfo Join point 'method-execution(void org.iiter.continuum.cdc.commons.ContainerManager.start())' in Type 'org.iiter.continuum.cdc.commons.ContainerManager' (ContainerManager.java:78) advised by after advice from 'org.iiter.aspects.monitoring.ContainerMonitoring' (ContainerMonitoring.aj:28) [AppClassLoader@64601bb1] weaveinfo Join point 'method-execution(void org.iiter.continuum.cdc.commons.ContainerManager.stop())' in Type 'org.iiter.continuum.cdc.commons.ContainerManager' (ContainerManager.java:109) advised by before advice from 'org.iiter.aspects.monitoring.ContainerMonitoring' (ContainerMonitoring.aj:33) [AppClassLoader@64601bb1] info processing reweavable type org.iiter.aspects.monitoring.ContainerMonitoring: org\iiter\ aspects\monitoring\ContainerMonitoring.aj [ExtClassLoader@61ba34f2] info AspectJ Weaver Version 1.7.3 built on Thursday Jun 13, 2013 at 19:41:31 GMT [ExtClassLoader@61ba34f2] info register classloader sun.misc.Launcher$ExtClassLoader@61ba34f2 [ExtClassLoader@61ba34f2] info no configuration found. Disabling weaver for class loader sun.misc.Launcher$ExtClassLoader@61ba34f2 When I start my application with JMX: java -javaagent:.\libs\aspectjweaver-1.7.3.jar -cp ".\libs\application.jar;.\libs\*" -Xms64m -Xmx512m -XX:MaxPermSize=128m -Djava.system.class.loader=org.aspectj.weaver.loadtime.WeavingURLClassLoader -Daj.weaving.verbose=true -Dorg.aspectj.weaver.showWeaveInfo=true "-Daj.class.path=.\libs\*" "-Daj.aspect.path=.\libs\org.iiter.aspects.monitoring-0.0.1-SNAPSHOT.jar" -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=7777 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dlogback.configurationFile=file:.\logback.xml org.iiter.application.Launcher I get this logs: [NoCallStackClassLoader@97d01f] info AspectJ Weaver Version 1.7.3 built on Thursday Jun 13, 2013 at 19:41:31 GMT [NoCallStackClassLoader@97d01f] info register classloader javax.management.remote.rmi.NoCallStackClassLoader@97d01f [NoCallStackClassLoader@97d01f] info no configuration found. Disabling weaver for class loader javax.management.remote.rmi.NoCallStackClassLoader@97d01f [NoCallStackClassLoader@7471dc3d] info AspectJ Weaver Version 1.7.3 built on Thursday Jun 13, 2013 at 19:41:31 GMT [NoCallStackClassLoader@7471dc3d] info register classloader javax.management.remote.rmi.NoCallStackClassLoader@7471dc3d [NoCallStackClassLoader@7471dc3d] info no configuration found. Disabling weaver for class loader javax.management.remote.rmi.NoCallStackClassLoader@7471dc3d [ExtClassLoader@61ba34f2] info AspectJ Weaver Version 1.7.3 built on Thursday Jun 13, 2013 at 19:41:31 GMT [ExtClassLoader@61ba34f2] info register classloader sun.misc.Launcher$ExtClassLoader@61ba34f2 [ExtClassLoader@61ba34f2] info no configuration found. Disabling weaver for class loader sun.misc.Launcher$ExtClassLoader@61ba34f2
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