Examples with CannotCompileException javassist.CannotCompileException used on opensource projects

Example 26 with CannotCompileException

use of javassist.CannotCompileException in project pinpoint by naver.

the class JavassistMethod method insertBeforeConstructor.

private int insertBeforeConstructor(int pos, String src) throws CannotCompileException {
    CtClass cc = behavior.getDeclaringClass();
    CodeAttribute ca = behavior.getMethodInfo().getCodeAttribute();
    CodeIterator iterator = ca.iterator();
    Bytecode b = new Bytecode(behavior.getMethodInfo().getConstPool(), ca.getMaxStack(), ca.getMaxLocals());
    b.setStackDepth(ca.getMaxStack());
    Javac jv = new Javac(b, cc);
    try {
        jv.recordParams(behavior.getParameterTypes(), false);
        jv.recordLocalVariables(ca, 0);
        jv.compileStmnt(src);
        ca.setMaxStack(b.getMaxStack());
        ca.setMaxLocals(b.getMaxLocals());
        iterator.skipConstructor();
        if (pos != -1) {
            iterator.insertEx(pos, b.get());
        } else {
            pos = iterator.insertEx(b.get());
        }
        iterator.insert(b.getExceptionTable(), pos);
        behavior.getMethodInfo().rebuildStackMapIf6(cc.getClassPool(), cc.getClassFile2());
        return pos + b.length();
    } catch (NotFoundException e) {
        throw new CannotCompileException(e);
    } catch (CompileError e) {
        throw new CannotCompileException(e);
    } catch (BadBytecode e) {
        throw new CannotCompileException(e);
    }
}

Example 27 with CannotCompileException

use of javassist.CannotCompileException in project pinpoint by naver.

the class JavassistMethod method insertBeforeMethod.

private int insertBeforeMethod(int pos, String src) throws CannotCompileException {
    CtClass cc = behavior.getDeclaringClass();
    CodeAttribute ca = behavior.getMethodInfo().getCodeAttribute();
    if (ca == null)
        throw new CannotCompileException("no method body");
    CodeIterator iterator = ca.iterator();
    Javac jv = new Javac(cc);
    try {
        int nvars = jv.recordParams(behavior.getParameterTypes(), Modifier.isStatic(getModifiers()));
        jv.recordParamNames(ca, nvars);
        jv.recordLocalVariables(ca, 0);
        jv.recordType(getReturnType0());
        jv.compileStmnt(src);
        Bytecode b = jv.getBytecode();
        int stack = b.getMaxStack();
        int locals = b.getMaxLocals();
        if (stack > ca.getMaxStack())
            ca.setMaxStack(stack);
        if (locals > ca.getMaxLocals())
            ca.setMaxLocals(locals);
        if (pos != -1) {
            iterator.insertEx(pos, b.get());
        } else {
            pos = iterator.insertEx(b.get());
        }
        iterator.insert(b.getExceptionTable(), pos);
        behavior.getMethodInfo().rebuildStackMapIf6(cc.getClassPool(), cc.getClassFile2());
        return pos + b.length();
    } catch (NotFoundException e) {
        throw new CannotCompileException(e);
    } catch (CompileError e) {
        throw new CannotCompileException(e);
    } catch (BadBytecode e) {
        throw new CannotCompileException(e);
    }
}

Example 28 with CannotCompileException

use of javassist.CannotCompileException in project pinpoint by naver.

the class InterceptorTest method interceptor.

//    @Deprecated
@Test
public void interceptor() throws NotFoundException, CannotCompileException, IllegalAccessException, InstantiationException, IOException, ClassNotFoundException, NoSuchMethodException {
    AroundInterceptor aroundInterceptor = new AroundInterceptor() {

        @Override
        public void before(Object target, Object[] args) {
            logger.info("BEFORE target:" + target + " args:" + Arrays.toString(args));
        }

        @Override
        public void after(Object target, Object[] args, Object result, Throwable throwable) {
            logger.info("AFTER target: " + target + " args:" + Arrays.toString(args) + " result:" + result + " throwable:" + throwable);
        }
    };
    int interceptorId = INTERCEPTOR_REGISTRY_ADAPTOR.addInterceptor(aroundInterceptor);
    final ClassPool classPool = new ClassPool(true);
    CtClass throwable = classPool.get(Throwable.class.getName());
    CtClass ctClass = classPool.get("com.navercorp.pinpoint.profiler.interceptor.JavaAssistTestObject");
    final CtMethod hello = ctClass.getMethod("hello", "(Ljava/lang/String;)Ljava/lang/String;");
    logger.debug("longName:{}", hello.getLongName());
    logger.debug("name:{}", hello.getName());
    String interceptorClassName = AroundInterceptor.class.getName();
    CtClass interceptor = classPool.get(interceptorClassName);
    hello.addLocalVariable("interceptor", interceptor);
    CtClass object = classPool.get(Object.class.getName());
    hello.addLocalVariable("result", object);
    //        hello.insertBefore("{ System.out.println(\"BEFORE\"); }");
    hello.insertBefore("{" + "interceptor = (" + interceptorClassName + ") " + InterceptorRegistry.class.getName() + ".getInterceptor(" + interceptorId + ");" + "interceptor.before(this, $args);" + "}");
    //        hello.addCatch("{" +
    ////            " interceptor.after(ctx);"+
    ////           " AroundInterceptor a = (AroundInterceptor) " + InterceptorRegistry.class.getName() + ".getStaticInterceptor(\"a\");"+
    //                " throw $e;" +
    //                "}", throwable);
    //        hello.insertAfter("{" +
    //                "interceptor.after(this,  $args, ($w)$_, null); " +
    //                "}");
    //       hello.setBody(generatedAroundInterceptor("TestObject", "hello"));
    //       hello.setBody("{ System.out.println(\"ddd\");  }", ClassMap map );
    //       hello.insertBefore(" System.out.println(\" BEFORE +  \");");
    //       hello.insertAfter(" System.out.println($_);");
    //       hello.insertAfter(" System.out.println($r);");
    //       hello.insertAfter(" System.out.println($w);");
    //       hello.insertAfter(" System.out.println($sig);");
    //       hello.insertAfter(" System.out.println($type);");
    //       hello.insertAfter(" System.out.println($class);");
    //       hello.instrument(new ExprEditor() {
    //         public void edit(MethodCall m)
    //         throws CannotCompileException
    //         {
    //             try {
    //                 System.out.println("method call" + m.getMethod().getName());
    //             } catch (NotFoundException e) {
    //                 e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
    //             }
    //             String code = generatedAroundInterceptor("TestObject", "hello");
    //             m.replace(code);
    //         }
    //         });
    //        hello.addCatch("System.out.println(\"catch\"); throw $e;", throwable);
    //       hello.setName("__hello");
    //       CtMethod method = CtNewMethod.make("public void hello() { try {__hello(); } catch(Throwable th){throw th;}}", ctClass);
    //         CtMethod method = CtNewMethod.make("public void hello() { System.out.println(\"ddd\"); } catch(Throwable th){throw th;}}", ctClass);
    //       ctClass.addMethod(method);
    //        ctClass.freeze();
    //       ctClass.writeFile("./debug");
    //       ctClass.debugWriteFile("./debug");
    Loader loader = LoaderUtils.createLoader(classPool);
    loader.delegateLoadingOf("com.navercorp.pinpoint.bootstrap.");
    Class aClass = loader.loadClass(ctClass.getName());
    Object testObject = aClass.newInstance();
    Method helloMethod = testObject.getClass().getDeclaredMethod("hello", String.class);
    try {
        helloMethod.invoke(testObject, "hello~~");
    } catch (Exception e) {
        Assert.fail(e.getMessage());
    }
//       o.hello();
}

Example 29 with CannotCompileException

use of javassist.CannotCompileException in project aem-core-wcm-components by Adobe-Marketing-Cloud.

the class FormsHelperStubber method createStub.

protected static void createStub() {
    ClassPool classPool = ClassPool.getDefault();
    CtClass ctClass;
    try {
        ctClass = classPool.get(CLASS_NAME);
        //indicates the class has already been stubbed and loaded
        if (ctClass.isFrozen()) {
            return;
        }
        //to remove any dependencies on impl classes.
        for (CtMethod ctMethod : ctClass.getDeclaredMethods()) {
            ctMethod.setBody(null);
        }
        //remove the error causing static field declaration
        ctClass.removeField(ctClass.getDeclaredField(ERROR_FIELD));
        //remove the static initilizer block calling new on impl class.
        ctClass.removeConstructor(ctClass.getClassInitializer());
        //load the stubbed class
        ctClass.toClass();
    } catch (NotFoundException e) {
        e.printStackTrace();
    } catch (CannotCompileException e) {
        e.printStackTrace();
    }
}