problem running injboss example

[sharman]

Hi,

I am new to jboss-aop and trying to run the example injboss. I have followed previous queries in this forum regarding this problem and followed the steps mentioned in those, but still not able to make it run.

I am using windows XP, j2sdk 1.4.2_07, jboss app server 4.0.3RC1, jboss aop 1.3.1. I have followed the steps in the documentation for installling jboss aop with jboss. I copied the jboss-aop.deployer to the JBOSS_HOME/server/default/deploy directory. Copied the jdk14-pluggable-instrumentor.jar and jboss-classloader-transformer.jar to the JBOSS_HOME/bin directory. Modified the run.bat to edit this line

set JAVA_OPTS=%JAVA_OPTS% -Dprogram.name=%PROGNAME% -Xbootclasspath/p:jboss-classloader-transformer.jar;jdk14-pluggable-instrumentor.jar

and modified the JBOSS_HOME/server/default/deploy/jboss-aop.deployer/META-INF/jboss-service.xml file

attribute name="EnableLoadtimeWeaving" as true
attribute name="Include">org.jboss.test,org.jboss.injbossaop

After following all these steps, when I run injboss example the Interceptor is not called. I am getting the output as


17:10:28,768 INFO [STDOUT] **** ExampleValue empty Constructor
17:10:28,768 INFO [STDOUT] **** ExampleValue.getMessage()
17:10:35,017 INFO [STDOUT] **** BasicExampleServlet.service()
17:10:35,017 INFO [STDOUT] **** ExampleValue String Constructor
17:10:35,017 INFO [STDOUT] **** ExampleValue.getMessage()

Kindly tell me what am I missing.

Thanx,
NS

[kabirkhan]

It works for me on windows....


* Unzip jboss-4.0.3RC2 distribution
* Unzip jboss-aop_1.3.1 distribution

Setup jboss for loadtime weaving
--------------------------------------
* Delete jboss-4.0.3RC2/server/default/jboss-aop.deployer
* Copy jboss-aop_1.3.1/jboss-40-install to jboss-4.0.3RC2/server/default/ (So that we have jboss-4.0.3RC2/server/default/jboss-aop.deployer)
* Modify jboss-4.0.3RC2/server/default/jboss-aop.deployer/META-INF/jboss-service.xml as follows

<server>

 <!-- The code for the service is different for the different run scenarios
 *** JBoss 4.0
 * JDK 1.4 - org.jboss.aop.deployment.AspectManagerService
 * JDK 5 (not using -javaagent switch) - org.jboss.aop.deployment.AspectManagerService
 * JDK 5 (using -javaagent switch) - org.jboss.aop.deployment.AspectManagerServiceJDK5
 * BEA JRockit 1.4.2 - org.jboss.aop.deployment.AspectManagerService
 *** JBoss 3.2
 * JDK 1.4 - org.jboss.aop.deployment.AspectManagerService32
 * JDK 5 (not using -javaagent switch) - org.jboss.aop.deployment.AspectManagerService32
 * JDK 5 (using -javaagent switch) - org.jboss.aop.deployment.AspectManagerService32JDK5
 * BEA JRockit 1.4.2 - org.jboss.aop.deployment.AspectManagerService32
 -->
 <mbean code="org.jboss.aop.deployment.AspectManagerService"
 name="jboss.aop:service=AspectManager">
 <attribute name="EnableLoadtimeWeaving">true</attribute>
 <!-- only relevant when EnableLoadtimeWeaving is true.
 When transformer is on, every loaded class gets
 transformed. If AOP can't find the class, then it
 throws an exception. Sometimes, classes may not have
 all the classes they reference. So, the Suppressing
 is needed. (i.e. Jboss cache in the default configuration -->
 <attribute name="SuppressTransformationErrors">true</attribute>
 <attribute name="Prune">true</attribute>
 <attribute name="Include">org.jboss.test, org.jboss.injbossaop</attribute>
 <attribute name="Exclude">org.jboss.</attribute>
 <attribute name="Optimized">true</attribute>
 <attribute name="Verbose">false</attribute>
 </mbean>

 <mbean code="org.jboss.aop.deployment.AspectDeployer"
 name="jboss.aop:service=AspectDeployer">
 </mbean>

</server>

* Generate jboss-classloader-transformer.jar and copy it to jboss-4.0.3RC2/bin
* Copy jboss-aop_1.3.1/lib/jdk14-pluggable-instrumentor.jar to jboss-4.0.3RC2/bin
* Modify run.bat on Windows (note the semicolon separating the bootclasspath entries)
set JAVA_OPTS=%JAVA_OPTS% -Dprogram.name=%PROGNAME% -Xbootclasspath/p:jboss-classloader-transformer.jar;jdk14-pluggable-instrumentor.jar

*Start JBoss
cd jboss-4.0.3RC2/bin
run


setup injboss example
--------------------------
* modify jboss-aop_1.3.1/docs/aspect-framework/examples/injboss/

 <!-- Set jboss.dir property to root of your JBoss distribution -->
 <property name="jboss.dir" value="c:/temp/jboss-4.0.3RC2"/>
 <!--
 Set jboss.server.config property to either default or all.
 if you set this to default, JBoss should be started with
 run -c default
 if you set this to all, JBoss should be started with
 run -c all
 -->
 <property name="jboss.server.config" value="default" />

* Run one of the targets, for example
cd jboss-aop_1.3.1/docs/aspect-framework/examples/injboss/
ant deploy-ear

[sharman]

Thanx Kabir,

The compile time (ct) deployment are working fine for me, but the problem is with the runtime deployment...Those are still not working. Is there any extra step I need to make runtime deployment work?

NS

[sharman]

When I run "ant deploy-ear", it say

file

Classes have not been aop'ed - run JBoss with enable transformations = true
Deploying ear with a standard contents and a standalone jboss-aop.xml

How can I enable transformations = true?/??? and can this be the problem that loadtime weaving is not working??

NS

[kabirkhan]

It works for me using Windows. I will try it out on cygwin to see if there is a problem there (I don't have linux installed)

[kabirkhan]

"SharmaN" wrote:
When I run "ant deploy-ear", it say

file

Classes have not been aop'ed - run JBoss with enable transformations = true
Deploying ear with a standard contents and a standalone jboss-aop.xml

How can I enable transformations = true?/??? and can this be the problem that loadtime weaving is not working??

NS

No, this just means that classes have not been transformed at compile time, so loadtime weaving is needed.

[kabirkhan]

It all works for me.....

Here are my jars:

Kabir@KabirDell /c/temp/jboss-4.0.3RC2
$ ls -al bin/*.jar
-rwxrwxrwx+ 1 Kabir None 8650 Sep 1 12:28 bin/jboss-classloader-transformer.jar
-rwxrwxrwx+ 1 Kabir None 2331 Sep 1 12:41 bin/jdk14-pluggable-instrumentor.jar
-rwxrwxrwx+ 1 Kabir None 37863 Aug 13 14:07 bin/run.jar
-rwxrwxrwx+ 1 Kabir None 17295 Aug 13 14:07 bin/shutdown.jar
-rwxrwxrwx+ 1 Kabir None 43291 Aug 13 14:07 bin/twiddle.jar

My run.bat:

...
rem Setup JBoss specific properties
set JAVA_OPTS=%JAVA_OPTS% -Dprogram.name=%PROGNAME% -Xbootclasspath/p:jboss-classloader-transformer.jar;jdk14-pluggable-instrumentor.jar
set JBOSS_HOME=%DIRNAME%\..
...

My run.sh (Since I am using cygwin I need to use a semicolon ";" separating jboss-classloader-transformer.jar and jdk14-pluggable-instrumentor.jar, on proper linux/unix I guess you'd use a colon ":")

...
# Setup JBoss sepecific properties
JAVA_OPTS="$JAVA_OPTS -Dprogram.name=$PROGNAME -Xbootclasspath/p:jboss-classloader-transformer.jar;jdk14-pluggable-instrumentor.jar"
...

My jboss-4.0.3RC2/server/default/deploy/jboss-aop.deployer/META-INF/jboss-service.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<server>
 <mbean code="org.jboss.aop.deployment.AspectManagerService"
 name="jboss.aop:service=AspectManager">
 <attribute name="EnableLoadtimeWeaving">true</attribute>
 <!-- only relevant when EnableLoadtimeWeaving is true.
 When transformer is on, every loaded class gets
 transformed. If AOP can't find the class, then it
 throws an exception. Sometimes, classes may not have
 all the classes they reference. So, the Suppressing
 is needed. (i.e. Jboss cache in the default configuration -->
 <attribute name="SuppressTransformationErrors">true</attribute>
 <attribute name="Prune">true</attribute>
 <attribute name="Include">org.jboss.test, org.jboss.injbossaop</attribute>
 <attribute name="Exclude">org.jboss.</attribute>
 <attribute name="Optimized">true</attribute>
 <attribute name="Verbose">false</attribute>
 </mbean>
 <mbean code="org.jboss.aop.deployment.AspectDeployer"
 name="jboss.aop:service=AspectDeployer">
 </mbean>
</server>

I can either run this from a DOS command-line

run.bat

or, this from a cygwin shell

run.sh

If you want to run any other configuration of jboss, by running "run -c all", you need to modify the jboss-4.0.3RC2/server/all/deploy/jboss-aop.deployer/META-INF/jboss-service.xml file.

------------------------------------

If you want to make sure that the pluggable instrumentor is getting picked up, you could compile the following and replace JDK14TransformerManager in jdk14-pluggable-instrumentor.jar:

package org.jboss.aop.hook;

public class JDK14TransformerManager
{

 public static JDK14Transformer transformer;

 public JDK14TransformerManager()
 {
 }

 public static byte[] transform(ClassLoader loader, String className, byte classBytes[])
 {
 System.out.println("Class: " + className);
 if(transformer == null)
 {
 System.out.println("no transformer");
 return null;
 }
 if(isNonAdvisableClassName(className))
 {
 System.out.println("Non advisable");
 return null;
 } else
 {
 System.out.println("transforming");
 return transformer.transform(loader, className, classBytes);
 }
 }

 public static boolean isNonAdvisableClassName(String classname)
 {
 return classname.startsWith("org.jboss.aop") ||
classname.endsWith("$aop") ||
classname.startsWith("javassist") ||
classname.startsWith("org.jboss.util.") ||
classname.startsWith("gnu.trove.") ||
classname.startsWith("EDU.oswego.cs.dl.util.concurrent.") ||
classname.startsWith("org.apache.crimson") ||
classname.startsWith("org.apache.xalan") ||
classname.startsWith("org.apache.xml") ||
classname.startsWith("org.apache.xpath") || classname.startsWith("org.ietf.") || classname.startsWith("org.omg.") ||
classname.startsWith("org.w3c.") || classname.startsWith("org.xml.sax.") || classname.startsWith("sunw.") || classname.startsWith("sun.") ||
classname.startsWith("java.") || classname.startsWith("javax.") ||
classname.startsWith("com.sun.") || classname.startsWith("junit") ||
classname.startsWith("jrockit.") || classname.startsWith("com.bea.vm.");
 }
}

You should see output like:

Kabir@KabirDell /c/temp/jboss-4.0.3RC2/bin
$ run.sh
=========================================================================

 JBoss Bootstrap Environment

 JBOSS_HOME: C:\temp\jboss-4.0.3RC2

 JAVA: /c/Java/jdk/j2sdk1.4.2_08/bin/java

 JAVA_OPTS: -server -Xms128m -Xmx128m -Dprogram.name=run.sh -Xbootclasspath/p:jboss-classloader-transformer.jar;jdk14-pluggable-i
nstrumentor.jar

 CLASSPATH: C:\temp\jboss-4.0.3RC2\bin\run.jar;C:\Java\jdk\j2sdk1.4.2_08\lib\tools.jar

=========================================================================

Class: org.jboss.Main
no transformer
Class: org.jboss.Main$1
no transformer
Class: gnu.getopt.LongOpt
no transformer
Class: gnu.getopt.Getopt
no transformer
Class: org.jboss.system.server.ServerLoader
no transformer
Class: org.jboss.system.server.NoAnnotationURLClassLoader
no transformer
Class: org.jboss.system.server.ServerImpl
no transformer

Note that it will not start transforming until a bit later in the startup process, i.e. once the AOPManager is deployed. If you don't see this output, it means you have got the settings wrong in your run.sh/run.bat wrong.