Le 21/06/2011 03:31, joliver a écrit :
Hi There,
I've been getting accustomed to AspectJ over the last few days and have
created numerous stand-alone applications where I have effectively used LTW.
For example:
public class TestClass {
private int x;
private int y;
public TestClass(int x, int y) {
this.x = x;
this.y = y;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public static void main(String[] args) {
TestClass tc = new TestClass(1, 2);
tc = new TestClass(1, 2);
tc = new TestClass(1, 2);
}
}
Aspect:
public aspect TestAspect {
after() returning(TestClass tc): call(TestClass.new(..)) {
tc.setY(1000);
System.out.println("JUST CREATED A TC!!!!!!!! " + tc.getY());
}
}
aop.xml:
<aspectj>
<aspects>
<aspect name="jon.sandbox.aspect.TestAspect"/>
</aspects>
<weaver options="-verbose">
</weaver>
</aspectj>
When I run this from the command line it works great! I run it like:
java -classpath "<the classpath>" -javaagent:aspectjweaver.jar
My problems start when I try to get this to work in a servlet running in
Tomcat 6.
I have basically created a servlet and in the doGet() method I'm
instantiating a TestClass. I've added a -javaagent:aspectjweaver.jar to the
startup and the Weaver starts and registers my Aspect but when I actually
come to run the servlet no LTW occurs!?!?
What gives? What am I missing or doing wrong??
Any help would be greatly appreciated!
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It is because the default ClassLoader of Tomcat is not "instrumentable".
All is explained in this thread :
http://forum.springsource.org/showthread.php?88613-load-time-weaver-and-tomcat-6-problem!
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