Package org.objectweb.asm.util

Examples of org.objectweb.asm.util.CheckClassAdapter

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        }

        if (loadMethodNodes) {
            // slower version that loads all operations
            classNode = new ClassNode();
            classReader.accept(new CheckClassAdapter(classNode, false), ClassReader.SKIP_DEBUG);

            return new ClassInfo(this, classNode);
        }
        else {
            // optimized version
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    }

    private byte[] instrumentClass(String className, ClassReader r) {
        log(LogLevel.INFO, "TRANSFORM: %s %s", className, (db.getClassEntry(className) != null && db.getClassEntry(className).requiresInstrumentation()) ? "request" : "");
        final ClassWriter cw = new DBClassWriter(db, r);
        ClassVisitor cv = (check && EXAMINED_CLASS == null) ? new CheckClassAdapter(cw) : cw;

        if (EXAMINED_CLASS != null && className.startsWith(EXAMINED_CLASS))
            cv = new TraceClassVisitor(cv, new PrintWriter(System.out));

        final InstrumentClass ic = new InstrumentClass(cv, db, false);
        r.accept(ic, ClassReader.SKIP_FRAMES);
        final byte[] transformed = cw.toByteArray();

        if (EXAMINED_CLASS != null) {
            if (className.startsWith(EXAMINED_CLASS)) {
                try (OutputStream os = new FileOutputStream(className.replace('/', '.') + ".class")) {
                    os.write(transformed);
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }

            if (check) {
                ClassReader r2 = new ClassReader(transformed);
                ClassVisitor cv2 = new CheckClassAdapter(new TraceClassVisitor(null), true);
                r2.accept(cv2, 0);
            }
        }

        return transformed;
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    JavaCompiler.CompilationTask ct = jc.getTask(null, sfm, null, null, null, Arrays.asList(sfo));

    if (!ct.call())
      throw new RuntimeException();

    loader.applyTransformer(name->name.equals(javaClassName), cw -> new ClassVisitor(Opcodes.ASM5, new CheckClassAdapter(cw)) {
      @Override
      public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
        if (!name.equals("<init>"))
          return super.visitMethod(access, name, desc, signature, exceptions);
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    }

    static byte[] instrumentClass(MethodDatabase db, byte[] data, boolean check) {
        ClassReader r = new ClassReader(data);
        ClassWriter cw = new DBClassWriter(db, r);
        ClassVisitor cv = check ? new CheckClassAdapter(cw) : cw;
        InstrumentClass ic = new InstrumentClass(cv, db, false);
        r.accept(ic, ClassReader.SKIP_FRAMES);
        return cw.toByteArray();
    }
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    private static Class<?> instrumentClass(Class<?> cls) throws Exception {
        ClassFileTransformer transformer = new ThreadSafetyCheckerTransformer() {
            @Override
            protected ClassVisitor getAdapters(ClassVisitor cv) {
                return super.getAdapters(new CheckClassAdapter(cv));
            }
        };
        ClassLoader loader = new TransformationTestClassLoader(cls.getName(), transformer, null);
        return loader.loadClass(cls.getName());
    }
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        return instrumentClass(className, new ClassReader(fis));
    }
   
    private byte[] instrumentClass(String className, ClassReader r) {
        final ClassWriter cw = new DBClassWriter(db, r);
        ClassVisitor cv = (check && EXAMINED_CLASS == null) ? new CheckClassAdapter(cw) : cw;

        if (EXAMINED_CLASS != null && className.startsWith(EXAMINED_CLASS))
            cv = new TraceClassVisitor(cv, new PrintWriter(System.out));

        final InstrumentClass ic = new InstrumentClass(cv, db, false);
        r.accept(ic, ClassReader.SKIP_FRAMES);
        final byte[] transformed = cw.toByteArray();

        if (EXAMINED_CLASS != null) {
            if (className.startsWith(EXAMINED_CLASS)) {
                try (OutputStream os = new FileOutputStream(className.replace('/', '.') + ".class")) {
                    os.write(transformed);
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }

            if (check) {
                ClassReader r2 = new ClassReader(transformed);
                ClassVisitor cv2 = new CheckClassAdapter(new TraceClassVisitor(null), true);
                r2.accept(cv2, 0);
            }
        }

        return transformed;
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    Exception e = null;
    String error = "";

    try{
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
    ClassVisitor cv = new CheckClassAdapter(cw, true);
    node.accept(cv);

    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);
    CheckClassAdapter.verify(new ClassReader(cw.toByteArray()), false, pw);
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        return bytecode;
    }

    private ClassVisitor decorateClassVisitor(ClassVisitor visitor, final boolean check, final PrintStream dumpStream) {
        if (check) {
            visitor = new CheckClassAdapter(visitor);
            if (null != CHECK_DATA_FLOW) {
                try {
                    // Currently CheckMethodAdapter throws error, so suppress flow checks
                    CHECK_DATA_FLOW.set(visitor, Boolean.FALSE);
                } catch (final IllegalAccessException ex) {
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    }

    static byte[] instrumentClass(MethodDatabase db, byte[] data, boolean check) {
        ClassReader r = new ClassReader(data);
        ClassWriter cw = new DBClassWriter(db, r);
        ClassVisitor cv = check ? new CheckClassAdapter(cw) : cw;
        InstrumentClass ic = new InstrumentClass(cv, db, false);
        r.accept(ic, ClassReader.SKIP_FRAMES);
        return cw.toByteArray();
    }
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    }

    private byte[] instrumentClass(String className, ClassReader r) {
        log(LogLevel.INFO, "TRANSFORM: %s %s", className, (db.getClassEntry(className) != null && db.getClassEntry(className).requiresInstrumentation()) ? "request" : "");
        final ClassWriter cw = new DBClassWriter(db, r);
        ClassVisitor cv = (check && EXAMINED_CLASS == null) ? new CheckClassAdapter(cw) : cw;

        if (EXAMINED_CLASS != null && className.startsWith(EXAMINED_CLASS))
            cv = new TraceClassVisitor(cv, new PrintWriter(System.out));

        final InstrumentClass ic = new InstrumentClass(cv, db, false);
        byte[] transformed = null;
        try {
            r.accept(ic, ClassReader.SKIP_FRAMES);
            transformed = cw.toByteArray();
        } catch (Exception e) {
            if (ic.hasSuspendableMethods()) {
                error("Unable to instrument class " + className, e);
                throw e;
            } else {
                if (!MethodDatabase.isProblematicClass(className))
                    log(LogLevel.DEBUG, "Unable to instrument class " + className);
                return null;
            }
        }

        if (EXAMINED_CLASS != null) {
            if (className.startsWith(EXAMINED_CLASS)) {
                try (OutputStream os = new FileOutputStream(className.replace('/', '.') + ".class")) {
                    os.write(transformed);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }

            if (check) {
                ClassReader r2 = new ClassReader(transformed);
                ClassVisitor cv2 = new CheckClassAdapter(new TraceClassVisitor(null), true);
                r2.accept(cv2, 0);
            }
        }

        return transformed;
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  • ch2.sec2.RemoveMethodAdapterTest
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