import sun.jvm.hotspot.opto.InlineTree; //导入依赖的package包/类
public void doit(Tokens t) {
    if (t.countTokens() != 1) {
        usage();
    } else {
        String name = t.nextToken();
        boolean all = name.equals("-a");
        Threads threads = VM.getVM().getThreads();
        for (JavaThread thread = threads.first(); thread != null; thread = thread.next()) {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            thread.printThreadIDOn(new PrintStream(bos));
            if (all || bos.toString().equals(name)) {
                if (thread instanceof CompilerThread) {
                    CompilerThread ct = (CompilerThread)thread;
                    ciEnv env = ct.env();
                    if (env != null) {
                        Compile c = env.compilerData();
                        InlineTree ilt = c.ilt();
                        if (ilt != null) {
                            ilt.print(out);
                        }
                    }
                }
            }
        }
    }
}