private byte[] modifiyClass(byte[] classfile, String name) { ClassParser parser = new ClassParser(new ByteArrayInputStream(classfile), ""); try { JavaClass cls = parser.parse(); for (JavaClassModifier modifier : ConfigurationLoader.getInstance().getJavaClassModifierList()) { modifier.modify(cls); } ByteArrayOutputStream out = new ByteArrayOutputStream(); cls.dump(out); return out.toByteArray(); } catch (Exception e) { throw new RuntimeException("Error while modifying class '" + name + "'", e); } }