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