Hi Max
> _Questions
..
>
> 1. how can we have the classes specified via *-javaagent:* able to
> load those classes (e.g. in Shared Chain CL) available lower down
> in the CL hierarchy (coz' it may not be feasible to put everything
> in System CL) ?
As you have mentioned already in your analysis, this is because aspectjweaver
loaded by the system classloader cannot see classes loaded lower in the
hierarchy such as the Logging Manager and AFAIK there is no easy fix for this.
No easy fix because the static block at java.util.logging.LogManager tries to
load using both the SystemClassLoader and the Thread context classloader (which
at the time of initialization of the PreMain class is not set to a classloader
that can load the specified loggingmanager) and both would not be able to load
the loggingmanager.
Unfortunately, while we did the earlier classloader changes in GlassFish v1, we
tried to move our logging manager
[com.sun.enterprise.server.logging.ServerLogManager] higher up in the hierarchy
[to be placed with appserv-launch.jar] but it had dependencies on a whole lot of
other appserv-rt.jar classes and hence couldn't get this out.
Possible Workarounds:
- I don't have the soruces for Aj/JDK14Trace. Is there a way to disable
AspectJWeaver logging? ie an option to not have this done at all
> at java.util.logging.Logger.getLogger(Logger.java:274)
> at org.aspectj.weaver.tools.Jdk14Trace.<init>(Jdk14Trace.java:25)
> at org.aspectj.weaver.tools.Jdk14TraceFactory.getTrace(Jdk14TraceFactory.java:17)
> at org.aspectj.weaver.loadtime.Aj.<clinit>(Aj.java:32)
If yes, we could use that as a temproary workaround
- AspectJ weaving using WeavingURLClassLoader.
- use a custom server log Manager. I know this is not supported but if the
custom log manager is bundled with the aspectjweaver class or specified in the
system classpath this would help aspectjweaver to continue to load.
If none of these help, someone from the admin team could let us know if it would
be possible to separate out our LoggingManager, so that this could be moved
higher up in the classloader hierarchy.
> 2. can we override *java.util.logging.manager* within
> context/execution of our web apps (vs that set during glassfish
> initialisation) so it points to something available with the web
> apps (e.g. apache commons logging, log4J, etc) ?
For log4j style configuration for a web app, does this help?
https://glassfish.dev.java.net/servlets/ReadMsg?list=users&msgNo=590
> Adding to domain.xml the jvm-option :
>
> * -Dcom.sun.aas.useNewClassLoader=false
>
> to try to disable the new Shared Chain Class Loader does not seem to help.
This was more of a internal temporary flag we introduced during GlassFish v1
days. This may be broken. I shall check this. If this is fixed, this would be a
workaround as well :)
Thanks
--Siva.
Max Poon wrote:
> Hi all
>
> I tried to deploy an web application onto the current latest glassfish
> v2 build 38 <https://glassfish.dev.java.net/downloads/v2-b38.html>
> running on sun jdk 1.6.0
> <http://java.sun.com/javase/downloads/index.jsp> (build105). I
> encountered a couple of problems and appreciate if you can kindly help
> me resolve them.
>
> Though the web app was deployed and started successfully, it seems not
> able to load the logger
> *(com.sun.enterprise.server.logging.ServerLogManager*) specified by
> *java.util.logging.manager*, throwing the following exception and
> subsequent logging entries for glassfish become missing.
>
> _GlassFish start-up log extract
> _
> /mnt/JavaEE-SDK/jdk/jre/../bin/java
> -client
> -Xmx512m
> -XX:NewRatio=2
> *-javaagent:/mnt/glassfish-v2b38/domains/domain1/applications/j2ee-modules/glassbox/install/aspectjweaver.jar*
> -Dcom.sun.aas.defaultLogFile=/mnt/glassfish-v2b38/domains/domain1/logs/server.log
> -Djava.endorsed.dirs=/mnt/glassfish-v2b38/lib/endorsed
> -Djava.security.policy=/mnt/glassfish-v2b38/domains/domain1/config/server.policy
> -Djava.security.auth.login.config=/mnt/glassfish-v2b38/domains/domain1/config/login.conf
> -Dsun.rmi.dgc.server.gcInterval=3600000
> -Dsun.rmi.dgc.client.gcInterval=3600000
> -Djavax.net.ssl.keyStore=/mnt/glassfish-v2b38/domains/domain1/config/keystore.jks
> -Djavax.net.ssl.trustStore=/mnt/glassfish-v2b38/domains/domain1/config/cacerts.jks
> -Djava.ext.dirs=/mnt/JavaEE-SDK/jdk/jre/../lib/ext:/mnt/JavaEE-SDK/jdk/jre/../jre/lib/ext:/mnt/glassfish-v2b38/domains/domain1/lib/ext:/mnt/glassfish-v2b38/javadb/lib
> -Djdbc.drivers=org.apache.derby.jdbc.ClientDriver
> -Djavax.management.builder.initial=com.sun.enterprise.admin.server.core.jmx.AppServerMBeanServerBuilder
> -Dcom.sun.enterprise.config.config_environment_factory_class=com.sun.enterprise.config.serverbeans.AppserverConfigEnvironmentFactory
> -Dcom.sun.enterprise.taglibs=appserv-jstl.jar,jsf-impl.jar
> -Dcom.sun.enterprise.taglisteners=jsf-impl.jar
> *-Dglassbox.install.dir=/mnt/glassfish-v2b38/domains/domain1/applications/j2ee-modules/glassbox/install/glassbox/
> -Daj.weaving.verbose=false*
> -Dcom.sun.aas.classloader.optionalOverrideableChain=webservices-rt.jar,webservices-tools.jar,commons-logging.jar,commons-launcher.jar
> -Dcom.sun.aas.classloader.appserverChainJars=admin-cli.jar,admin-cli-ee.jar,dbschema.jar,j2ee-svc.jar
> -Dcom.sun.aas.classloader.serverClassPath.ee=%HADB_HOME%/lib/hadbjdbc4.jar,/mnt/glassfish-v2b38/lib/SUNWjdmk/5.1/lib/jdmkrt.jar,%HADB_HOME%/lib/dbstate.jar,%HADB_HOME%/lib/hadbm.jar,%HADB_HOME%/lib/hadbmgt.jar,%MFWK_HOME%/lib/mfwk_instrum_tk.jar
> -Dcom.sun.aas.configName=server-config
> -Ddomain.name=domain1
> -Djmx.invoke.getters=true
> -Dcom.sun.aas.classloader.optionalOverrideableChain.ee=
> -Dcom.sun.updatecenter.home=/mnt/glassfish-v2b38/updatecenter
> -Dcom.sun.aas.instanceRoot=/mnt/glassfish-v2b38/domains/domain1
> -Dcom.sun.aas.domainName=domain1
> -Dcom.sun.aas.classloader.sharedChainJars=javaee.jar,/mnt/JavaEE-SDK/jdk/jre/../lib/tools.jar,install/applications/jmsra/imqjmsra.jar,commons-launcher.jar,/mnt/glassfish-v2b38/imq/lib/jaxm-api.jar,/mnt/glassfish-v2b38/imq/lib/fscontext.jar,/mnt/glassfish-v2b38/imq/lib/imqbroker.jar,/mnt/glassfish-v2b38/imq/lib/imqjmx.jar,/mnt/glassfish-v2b38/imq/lib/imqxm.jar,/mnt/glassfish-v2b38/lib/ant/lib/ant.jar,webservices-rt.jar,webservices-tools.jar,mail.jar,jsf-api.jar,jsf-impl.jar,appserv-jstl.jar,appserv-env.jar,jmxremote_optional.jar,/mnt/glassfish-v2b38/lib/SUNWjdmk/5.1/lib/jdmkrt.jar,commons-logging.jar,activation.jar,appserv-rt.jar,appserv-admin.jar,appserv-cmp.jar,/mnt/glassfish-v2b38/updatecenter/lib/updatecenter.jar,/mnt/glassfish-v2b38/jbi/lib/jbi.jar
> -Dcom.sun.aas.classloader.sharedChainJars.ee=appserv-se.jar,appserv-ee.jar,%HADB_HOME%/lib/dbstate.jar,%HADB_HOME%/lib/hadbjdbc4.jar,jgroups-all.jar,%MFWK_HOME%/lib/mfwk_instrum_tk.jar
> *-Djava.util.logging.manager=com.sun.enterprise.server.logging.ServerLogManager
> *-Dcom.sun.enterprise.overrideablejavaxpackages=javax.help,javax.portlet
> -Dcom.sun.aas.classloader.serverClassPath=/mnt/glassfish-v2b38/lib/install/applications/jmsra/imqjmsra.jar,/mnt/glassfish-v2b38/imq/lib/jaxm-api.jar,/mnt/glassfish-v2b38/imq/lib/fscontext.jar,/mnt/glassfish-v2b38/imq/lib/imqbroker.jar,/mnt/glassfish-v2b38/imq/lib/imqjmx.jar,/mnt/glassfish-v2b38/lib/ant/lib/ant.jar,/mnt/glassfish-v2b38/lib/SUNWjdmk/5.1/lib/jdmkrt.jar
> -Dcom.sun.aas.classloader.appserverChainJars.ee=
> -Dcom.sun.aas.configRoot=/mnt/glassfish-v2b38/config
> -Djava.library.path=/mnt/glassfish-v2b38/lib:/mnt/glassfish-v2b38/lib:/mnt/glassfish-v2b38/lib
> -Dcom.sun.aas.instanceName=server
> -Dcom.sun.aas.processLauncher=SE
> -Dcom.sun.aas.installRoot=/mnt/glassfish-v2b38
> -Dcom.sun.aas.ClassPathPrefix=
> -Dcom.sun.aas.ClassPathSuffix=
> -Dcom.sun.aas.ServerClassPath=
> -Dcom.sun.aas.promptForIdentity=true
> -cp
> :/mnt/glassfish-v2b38/lib/appserv-launch.jar:/mnt/glassfish-v2b38/lib/ant/lib/ant-launcher.jar:/mnt/glassfish-v2b38/domains/domain1/applications/j2ee-modules/glassbox/install/glassboxMonitor.jar
> com.sun.enterprise.server.PELaunch
> start
> *Could not load Logmanager
> "com.sun.enterprise.server.logging.ServerLogManager"
> java.lang.ClassNotFoundException:
> com.sun.enterprise.server.logging.ServerLogManager*
> at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.util.logging.LogManager$1.run(LogManager.java:166)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.util.logging.LogManager.<clinit>(LogManager.java:156)
> * at java.util.logging.Logger.getLogger(Logger.java:274)
> at org.aspectj.weaver.tools.Jdk14Trace.<init>(Jdk14Trace.java:25)
> at
> org.aspectj.weaver.tools.Jdk14TraceFactory.getTrace(Jdk14TraceFactory.java:17)
> at org.aspectj.weaver.loadtime.Aj.<clinit>(Aj.java:32)
> at
> org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter.<clinit>(ClassPreProcessorAgentAdapter.java:32)
> at org.aspectj.weaver.loadtime.Agent.<clinit>(Agent.java:33)*
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:323)
> at
> sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:338)
> Mar 12, 2007 6:35:57 PM com.sun.enterprise.server.PEMain main
> INFO: Starting Sun Java System Application Server 9.1 (build b38-rc) ...
> Mar 12, 2007 6:36:06 PM com.sun.enterprise.server.ss.ASLazyKernel
> startASSocketServices
> INFO: CORE5098: AS Socket Service Initialization has been completed.
> Mar 12, 2007 6:36:07 PM com.sun.enterprise.server.ApplicationServer
> printStartupInfo
> INFO: CORE5076: Using [Java HotSpot(TM) Client VM, Version 1.6.0] from
> [Sun Microsystems Inc.]
>
> It seems that
>
> * *org.aspectj.weaver.tools.Jdk14Trace* (from *aspectjweaver.jar*
> specified in *-javaagent:* jvm option)
>
> tried to load
>
> * *com.sun.enterprise.server.logging.ServerLogManager *in
> *appserv-rt.jar* loaded via Shared Chain Class Loader (specified
> by *-Djava.util.logging.manager* loadable via
> -Dcom.sun.aas.classloader.sharedChainJars)
>
> The exception observed (enclosed) can be explained if classes specified
> in -javaagent: are loaded by System CL (which is parent of Shared Chain
> CL so cannot load those classes in its children) according to the
> GlassFish class loading hierarchy
> <https://glassfish.dev.java.net/nonav/javaee5/docs/DG/beade.html#beadh>.
>
> _Questions
> _
> In this case,
>
> 1. how can we have the classes specified via *-javaagent:* able to
> load those classes (e.g. in Shared Chain CL) available lower down
> in the CL hierarchy (coz' it may not be feasible to put everything
> in System CL) ?
> 2. can we override *java.util.logging.manager* within
> context/execution of our web apps (vs that set during glassfish
> initialisation) so it points to something available with the web
> apps (e.g. apache commons logging, log4J, etc) ?
>
> Adding to domain.xml the jvm-option :
>
> * -Dcom.sun.aas.useNewClassLoader=false
>
> to try to disable the new Shared Chain Class Loader does not seem to help.
>
> Btw, this seems like a generic problem of deploying AspectJ
> Load-Time-Weaving (LTW) web application on GlassFish due to the
> requirement of AspectJ LTWeaver to be loaded via "-javaagent:" jvm
> option (hence via System Class Loader) in GlassFish. (Ref. AspectJ
> Load-Time Weaving Configuration
> <http://www.eclipse.org/aspectj/doc/released/devguide/ltw-configuration.html>).
>
> Appreciate any input / ideas....
>
> Thanks!
> Max
>
>
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