| [aspectj-users] LTW Agent Dynamic Attachement with Attach API |
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I have yet asked the
question, and I made a try. JDK 1.6 brings Sun Api to
dynamically load java Agent http://java.sun.com/javase/6/docs/technotes/guides/attach/index.html I test it with aspectjweaver.jar
( in fact a custom myaspectjweaver.jar that contains aspectjweaver.jar ) but I can’t
success a run. Does-it possible to
attach LTW agent, when an application is already running? Or the LTW agent *must* be loaded at starting? I see that there is
some thing similar with the Equinox/Aspects; project in status incubator… I load the Agent but the
initialisation failed as shown with this traces: E:\opt\perfStats\scripts>"C:\Program
Files\Java\jdk1.6.0_11\bin\java" -classpath
..\lib\myaspectjweaver.jar;"C:\Program
Files\Java\jdk1.6.0_11\lib\tools.jar"; ;. attachapi.launcher.PerfStatsLaunch
4668 E:\opt\perfStats\lib\myaspectjweaver.jar loading agent :
E:\opt\perfStats\lib\myaspectjweaver.jar Echec Attach com.sun.tools.attach.AgentInitializationException:
Agent JAR loaded but agent failed to initialize
at sun.tools.attach.HotSpotVirtualMachine.loadAgent(HotSpotVirtualMachine.java:103)
at attachapi.launcher.PerfStatsLaunch.attachPerfStats(PerfStatsLaunch.java:33)
at attachapi.launcher.PerfStatsLaunch.main(PerfStatsLaunch.java:69) My MANIFEST.MF Manifest-Version: 1.0 Name: org/aspectj/weaver/ Specification-Title:
AspectJ Weaver Classes Specification-Version:
DEVELOPMENT Specification-Vendor:
aspectj.org Implementation-Title:
org.aspectj.weaver Implementation-Version:
DEVELOPMENT Implementation-Vendor:
aspectj.org Premain-Class: org.aspectj.weaver.loadtime.Agent Can-Redefine-Classes:
true Agent-Class: org.aspectj.weaver.loadtime.Agent I added the Agent-Class
line. Cordialement / Best regards Jean-Louis
Pasturel
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