method = cf.addMethod(JVM.ACC_PUBLIC + JVM.ACC_STATIC,
"main",
"([Ljava/lang/String;)V");
code = new CodeBuilder(method);
code.add(JVM.GETSTATIC, cp.addFieldRef("java/lang/System",
"out",
"Ljava/io/PrintStream;"));
code.add(JVM.LDC, "Hello world!");
code.add(JVM.INVOKEVIRTUAL, cp.addMethodRef(false,
"java/io/PrintStream",