AspectJ LTW does not work in Tomcat, but works fine in tcServer?!

[silverjam]

Hi all,

I have been banging my head on a very heavy wall for the last couple of days.

I am developing an application, which uses AspectJ Load-Time-Weaving (LTW). It works just fine on my locally installed tcServer (with the default "insight-instance" Tomcat server).

However, when I deploy the application to a stock Tomcat 6.0.29 server, the AspectJ LTW is completely ignored.

On both servers, I have copied "spring-instrument-tomcat-3.0.4.RELEASE.jar" to ./lib. Otherwise I haven't changed anything.

I have made a test program, which I have attached.

What am I missing? Can anybody get AspectJ to work on a Tomcat server at all?

My best guess is that I am missing something crucial on the classpath. I just cannot figure out what...


Please help!

Best regards,
~Morten

[nsthen]

Have you added the TomcatInstrumentableClassLoader to the tomcat config? See

http://static.springsource.org/sprin...w-environments

[silverjam]

I am pretty sure of this, since I get this in the log:

INFO: Using a reflective load-time weaver for class loader: org.springframework.instrument.classloading.tomcat.TomcatInstrumentableClassLoader

Here's the contents of $CATALINA_HOME/lib/:

work@poseidon ~/programs/apache-tomcat-6.0.29-new/lib $ ll
total 4976
drwxr-xr-x 2 work work    4096 16 dec 14:26 .
drwxr-xr-x 9 work work    4096 16 dec 12:00 ..
-rw-r--r-- 1 work work   15240 19 jul 14:59 annotations-api.jar
-rw-r--r-- 1 work work   53752 19 jul 14:59 catalina-ant.jar
-rw-r--r-- 1 work work  129627 19 jul 14:59 catalina-ha.jar
-rw-r--r-- 1 work work 1191060 19 jul 14:59 catalina.jar
-rw-r--r-- 1 work work  235004 19 jul 14:59 catalina-tribes.jar
-rw-r--r-- 1 work work   32384 19 jul 14:59 el-api.jar
-rw-r--r-- 1 work work  108570 19 jul 14:59 jasper-el.jar
-rw-r--r-- 1 work work  525001 19 jul 14:59 jasper.jar
-rw-r--r-- 1 work work 1407902 19 jul 14:59 jasper-jdt.jar
-rw-r--r-- 1 work work   76693 19 jul 14:59 jsp-api.jar
-rw-r--r-- 1 work work   88224 19 jul 14:59 servlet-api.jar
-rw-r--r-- 1 work work    5724 16 dec 12:01 spring-instrument-tomcat-3.0.4.RELEASE.jar
-rw-r--r-- 1 work work  758137 19 jul 14:59 tomcat-coyote.jar
-rw-r--r-- 1 work work  249650 19 jul 14:59 tomcat-dbcp.jar
-rw-r--r-- 1 work work   70035 19 jul 14:59 tomcat-i18n-es.jar
-rw-r--r-- 1 work work   51966 19 jul 14:59 tomcat-i18n-fr.jar
-rw-r--r-- 1 work work   55037 19 jul 14:59 tomcat-i18n-ja.jar

work@poseidon ~/programs/apache-tomcat-6.0.29-new/lib $ unzip -v spring-instrument-tomcat-3.0.4.RELEASE.jar 
Archive:  spring-instrument-tomcat-3.0.4.RELEASE.jar
 Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
--------  ------  ------- ---- ---------- ----- --------  ----
       0  Stored        0   0% 08-19-2010 11:33 00000000  META-INF/
     711  Defl:N      333  53% 08-19-2010 11:33 844bc811  META-INF/MANIFEST.MF
       0  Stored        0   0% 08-19-2010 11:33 00000000  org/
       0  Stored        0   0% 08-19-2010 11:33 00000000  org/springframework/
       0  Stored        0   0% 08-19-2010 11:33 00000000  org/springframework/instrument/
       0  Stored        0   0% 08-19-2010 11:33 00000000  org/springframework/instrument/classloading/
       0  Stored        0   0% 08-19-2010 11:33 00000000  org/springframework/instrument/classloading/tomcat/
    2423  Defl:N     1161  52% 08-19-2010 11:33 02035d69  org/springframework/instrument/classloading/WeavingTransformer.class
    4232  Defl:N     2069  51% 08-19-2010 11:33 a8a9495d  org/springframework/instrument/classloading/tomcat/TomcatInstrumentableClassLoader.class
     156  Defl:N      132  15% 08-19-2010 11:33 cb849bf4  org/springframework/instrument/classloading/tomcat/package-info.class
     124  Defl:N      102  18% 08-19-2010 11:33 b33c1032  overview.html
     230  Defl:N      113  51% 08-19-2010 11:33 3734ad74  META-INF/INDEX.LIST
--------          -------  ---                            -------
    7876             3910  50%                            12 files

If I modify the classname inside aop.xml, the server gets angry at me, so it seems that AspectJ has what it needs.....

But it just doesn't work.... :-(

[silverjam]

It turned out that I was missing the ant-style syntax of the namespaces in aop.xml.

However, tcServer behaves incorrectly then. Guess I'll file a bug on this...

Cheers,
~Morten :-)