I am looking at the groovy plugin. For the compile process of script, I can trace it by the classes under org.jetbrains.plugins.groovy.runner. But how about the compile process of class file, seems it doest'n invoke any class under org.jetbrains.plugins.groovy.compiler? From the console I find the message: "C:\Program Files\Java\jdk1.6.0_26\bin\java" com.intellij.rt.execution.application.AppMain com.test.GroovyApp after a groovy class runs. However, when a breakpoint is set in the main method in com.intellij.rt.execution.application.AppMain, it is also doesn't work? Can you give me some hints on the compile process for groovy class?