RULE trace method entry and exit
CLASS com.example.MyClass
METHOD foo
AT ENTRY,EXIT
IF true
DO traceln("Entering or exiting method foo!")
ENDRULE
$ bminstall.sh
$ bminstall.bat
$ java -javaagent:path/to/byteman.jar=script:/path/to/your/script.btm com.example.Main
package com.example;
public class MyClass {
public void foo() {
System.out.println("Hello from foo!");
}
}
RULE modify foo method
CLASS com.example.MyClass
METHOD foo
AT ENTRY
IF true
DO traceln("Modifying foo method!")
DO REBIND $0.setName("Modified foo method!")
ENDRULE
$ bminstall.sh
$ bminstall.bat
$ java -javaagent:path/to/byteman.jar=script:/path/to/example.btm com.example.MyClass
Modifying foo method!
Hello from Modified foo method!
