Java Code Examples for jdk.internal.org.objectweb.asm.MethodVisitor#visitFieldInsn()

The following examples show how to use jdk.internal.org.objectweb.asm.MethodVisitor#visitFieldInsn() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: BoundMethodHandle.java From Java8CN with Apache License 2.0

5 votes

private static void emitPushFields(String types, String className, MethodVisitor mv) {
    for (int i = 0; i < types.length(); ++i) {
        char tc = types.charAt(i);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, className, makeFieldName(types, i), typeSig(tc));
    }
}

Example 2

Source File: EventHandlerCreator.java From dragonwell8_jdk with GNU General Public License v2.0

5 votes

private void buildConstructor() {
    MethodVisitor mv = classWriter.visitMethod(Opcodes.ACC_PRIVATE, METHOD_EVENT_HANDLER_CONSTRUCTOR.getName(), makeConstructorDescriptor(settingInfos), null, null);
    mv.visitVarInsn(Opcodes.ALOAD, 0); // this
    mv.visitVarInsn(Opcodes.ILOAD, 1); // registered
    mv.visitVarInsn(Opcodes.ALOAD, 2); // event type
    mv.visitVarInsn(Opcodes.ALOAD, 3); // event control
    mv.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(EventHandler.class), METHOD_EVENT_HANDLER_CONSTRUCTOR.getName(), METHOD_EVENT_HANDLER_CONSTRUCTOR.getDescriptor(), false);
    for (SettingInfo si : settingInfos) {
        mv.visitVarInsn(Opcodes.ALOAD, 0); // this
        mv.visitVarInsn(Opcodes.ALOAD, si.index + 4); // Setting Control
        mv.visitFieldInsn(Opcodes.PUTFIELD, internalClassName, si.fieldName, TYPE_SETTING_CONTROL.getDescriptor());
    }
    // initialized string field writers
    int fieldIndex = 0;
    for (FieldInfo field : fields) {
        if (field.isString()) {
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, Type.getInternalName(EventHandler.class), "createStringFieldWriter", "()" + TYPE_STRING_POOL.getDescriptor(), false);
            mv.visitFieldInsn(Opcodes.PUTFIELD, internalClassName, FIELD_PREFIX_STRING_POOL + fieldIndex, TYPE_STRING_POOL.getDescriptor());
        }
        fieldIndex++;
    }
    mv.visitInsn(Opcodes.RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();
}

Example 3

Source File: TestConcreteClassWithAbstractMethod.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

public static byte[] dumpT1() {
    ClassWriter cw = new ClassWriter(0);
    MethodVisitor mv;

    cw.visit(52, ACC_PUBLIC | ACC_SUPER, "p1/T1", null, "java/lang/Object", null);
    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null);
        mv.visitCode();
        mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
        mv.visitLdcInsn("p1/T1.m()");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false);
        mv.visitIntInsn(BIPUSH, 3);
        mv.visitInsn(IRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    cw.visitEnd();

    return cw.toByteArray();
}

Example 4

Source File: BoundMethodHandle.java From jdk1.8-source-analysis with Apache License 2.0

5 votes

private static void emitPushFields(String types, String className, MethodVisitor mv) {
    for (int i = 0; i < types.length(); ++i) {
        char tc = types.charAt(i);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, className, makeFieldName(types, i), typeSig(tc));
    }
}

Example 5

Source File: UntrustedInterfaces.java From openjdk-jdk9 with GNU General Public License v2.0

4 votes

@Override
protected Class<?> findClass(String name) throws ClassNotFoundException {
    if (name.equals(POISON_IMPL_NAME)) {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);

        cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC, POISON_IMPL_NAME.replace('.', '/'), null, Type.getInternalName(Pill.class), null);
        // constructor
        MethodVisitor constructor = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", "()V", null, null);
        constructor.visitCode();
        constructor.visitVarInsn(Opcodes.ALOAD, 0);
        constructor.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Pill.class), "<init>", "()V", false);
        constructor.visitInsn(Opcodes.RETURN);
        constructor.visitMaxs(0, 0);
        constructor.visitEnd();

        MethodVisitor setList = cw.visitMethod(Opcodes.ACC_PUBLIC, "setField", "()V", null, null);
        setList.visitCode();
        setList.visitVarInsn(Opcodes.ALOAD, 0);
        setList.visitTypeInsn(Opcodes.NEW, Type.getInternalName(Object.class));
        setList.visitInsn(Opcodes.DUP);
        setList.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Object.class), "<init>", "()V", false);
        setList.visitFieldInsn(Opcodes.PUTFIELD, Type.getInternalName(Pill.class), "field", Type.getDescriptor(TestInterface.class));
        setList.visitInsn(Opcodes.RETURN);
        setList.visitMaxs(0, 0);
        setList.visitEnd();

        MethodVisitor setStaticList = cw.visitMethod(Opcodes.ACC_PUBLIC, "setStaticField", "()V", null, null);
        setStaticList.visitCode();
        setStaticList.visitTypeInsn(Opcodes.NEW, Type.getInternalName(Object.class));
        setStaticList.visitInsn(Opcodes.DUP);
        setStaticList.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Object.class), "<init>", "()V", false);
        setStaticList.visitFieldInsn(Opcodes.PUTSTATIC, Type.getInternalName(Pill.class), "staticField", Type.getDescriptor(TestInterface.class));
        setStaticList.visitInsn(Opcodes.RETURN);
        setStaticList.visitMaxs(0, 0);
        setStaticList.visitEnd();

        MethodVisitor callMe = cw.visitMethod(Opcodes.ACC_PUBLIC, "callMe", Type.getMethodDescriptor(Type.INT_TYPE, Type.getType(CallBack.class)), null, null);
        callMe.visitCode();
        callMe.visitVarInsn(Opcodes.ALOAD, 1);
        callMe.visitTypeInsn(Opcodes.NEW, Type.getInternalName(Object.class));
        callMe.visitInsn(Opcodes.DUP);
        callMe.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Object.class), "<init>", "()V", false);
        callMe.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(CallBack.class), "callBack", Type.getMethodDescriptor(Type.INT_TYPE, Type.getType(TestInterface.class)), true);
        callMe.visitInsn(Opcodes.IRETURN);
        callMe.visitMaxs(0, 0);
        callMe.visitEnd();

        MethodVisitor getList = cw.visitMethod(Opcodes.ACC_PUBLIC, "get", Type.getMethodDescriptor(Type.getType(TestInterface.class)), null, null);
        getList.visitCode();
        getList.visitTypeInsn(Opcodes.NEW, Type.getInternalName(Object.class));
        getList.visitInsn(Opcodes.DUP);
        getList.visitMethodInsn(Opcodes.INVOKESPECIAL, Type.getInternalName(Object.class), "<init>", "()V", false);
        getList.visitInsn(Opcodes.ARETURN);
        getList.visitMaxs(0, 0);
        getList.visitEnd();

        cw.visitEnd();

        byte[] bytes = cw.toByteArray();
        return defineClass(name, bytes, 0, bytes.length);
    }
    return super.findClass(name);
}

Example 6

Source File: FieldInsnNode.java From openjdk-8 with GNU General Public License v2.0

4 votes

@Override
public void accept(final MethodVisitor mv) {
    mv.visitFieldInsn(opcode, owner, name, desc);
    acceptAnnotations(mv);
}

Example 7

Source File: TestConcreteClassWithAbstractMethod.java From openjdk-jdk8u-backup with GNU General Public License v2.0

4 votes

public static byte[] dumpT3() {
    ClassWriter cw = new ClassWriter(0);
    MethodVisitor mv;

    cw.visit(52, ACC_PUBLIC + ACC_SUPER, "p1/T3", null, "p1/T2", null);

    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "p1/T2", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null);
        mv.visitCode();
        mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
        mv.visitLdcInsn("p1/T3.m()");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false);
        mv.visitIntInsn(BIPUSH, 2);
        mv.visitInsn(IRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "p1/T3");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "p1/T3", "<init>", "()V", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "p1/T2", "m", "()I", false);
        mv.visitInsn(IRETURN);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    cw.visitEnd();

    return cw.toByteArray();
}

Example 8

Source File: ObjectType.java From jdk8u60 with GNU General Public License v2.0

4 votes

@Override
public Type loadUndefined(final MethodVisitor method) {
    method.visitFieldInsn(GETSTATIC, className(ScriptRuntime.class), "UNDEFINED", typeDescriptor(Undefined.class));
    return UNDEFINED;
}

Example 9

Source File: SystemModulesPlugin.java From openjdk-jdk9 with GNU General Public License v2.0

4 votes

/**
 * Loads an Enum field.
 */
void visitElement(T t, MethodVisitor mv) {
    mv.visitFieldInsn(GETSTATIC, className, t.toString(),
                      "L" + className + ";");
}

Example 10

Source File: ObjectType.java From openjdk-jdk8u-backup with GNU General Public License v2.0

4 votes

@Override
public Type loadUndefined(final MethodVisitor method) {
    method.visitFieldInsn(GETSTATIC, className(ScriptRuntime.class), "UNDEFINED", typeDescriptor(Undefined.class));
    return UNDEFINED;
}

Example 11

Source File: TestConcreteClassWithAbstractMethod.java From jdk8u60 with GNU General Public License v2.0

4 votes

public static byte[] dumpT3() {
    ClassWriter cw = new ClassWriter(0);
    MethodVisitor mv;

    cw.visit(52, ACC_PUBLIC + ACC_SUPER, "p1/T3", null, "p1/T2", null);

    {
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "p1/T2", "<init>", "()V", false);
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null);
        mv.visitCode();
        mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
        mv.visitLdcInsn("p1/T3.m()");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false);
        mv.visitIntInsn(BIPUSH, 2);
        mv.visitInsn(IRETURN);
        mv.visitMaxs(2, 1);
        mv.visitEnd();
    }
    {
        mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null);
        mv.visitCode();
        mv.visitTypeInsn(NEW, "p1/T3");
        mv.visitInsn(DUP);
        mv.visitMethodInsn(INVOKESPECIAL, "p1/T3", "<init>", "()V", false);
        mv.visitMethodInsn(INVOKEVIRTUAL, "p1/T2", "m", "()I", false);
        mv.visitInsn(IRETURN);
        mv.visitMaxs(3, 2);
        mv.visitEnd();
    }
    cw.visitEnd();

    return cw.toByteArray();
}

Example 12

Source File: ObjectType.java From jdk8u_nashorn with GNU General Public License v2.0

4 votes

@Override
public Type loadEmpty(final MethodVisitor method) {
    method.visitFieldInsn(GETSTATIC, className(ScriptRuntime.class), "EMPTY", typeDescriptor(Undefined.class));
    return UNDEFINED;
}

Example 13

Source File: ObjectType.java From TencentKona-8 with GNU General Public License v2.0

4 votes

@Override
public Type loadEmpty(final MethodVisitor method) {
    method.visitFieldInsn(GETSTATIC, className(ScriptRuntime.class), "EMPTY", typeDescriptor(Undefined.class));
    return UNDEFINED;
}

Example 14

Source File: ObjectType.java From nashorn with GNU General Public License v2.0

4 votes

@Override
public Type loadEmpty(final MethodVisitor method) {
    method.visitFieldInsn(GETSTATIC, className(ScriptRuntime.class), "EMPTY", typeDescriptor(Undefined.class));
    return OBJECT;
}

Example 15

Source File: FieldInsnNode.java From hottub with GNU General Public License v2.0

4 votes

@Override
public void accept(final MethodVisitor mv) {
    mv.visitFieldInsn(opcode, owner, name, desc);
    acceptAnnotations(mv);
}

Example 16

Source File: TestMeetIncompatibleInterfaceArrays.java From TencentKona-8 with GNU General Public License v2.0

4 votes

static void generateTestClass(int dim, boolean good) throws Exception {
    String baseClassName = "MeetIncompatibleInterfaceArrays";
    if (good)
        baseClassName += "Good";
    String createName = "createI2" + (good ? "1" : "") + "Array";
    String a = "";
    for (int i = 0; i < dim; i++)
        a += "[";
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
    cw.visit(V1_8, ACC_PUBLIC, baseClassName + dim + "ASM", null, "java/lang/Object", null);
    MethodVisitor constr = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    constr.visitCode();
    constr.visitVarInsn(ALOAD, 0);
    constr.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
    constr.visitInsn(RETURN);
    constr.visitMaxs(0, 0);
    constr.visitEnd();
    MethodVisitor run = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "run",
            "()" + a + "LTestMeetIncompatibleInterfaceArrays$I1;", null, null);
    run.visitCode();
    if (dim == 4) {
        run.visitMethodInsn(INVOKESTATIC, "TestMeetIncompatibleInterfaceArrays$Helper", createName + 3,
                "()" + "[[[" + "LTestMeetIncompatibleInterfaceArrays$I2;", false);
    } else {
        run.visitMethodInsn(INVOKESTATIC, "TestMeetIncompatibleInterfaceArrays$Helper", createName + dim,
                "()" + a + "LTestMeetIncompatibleInterfaceArrays$I2;", false);
    }
    run.visitInsn(ARETURN);
    run.visitMaxs(0, 0);
    run.visitEnd();
    MethodVisitor test = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "test", "()V", null, null);
    test.visitCode();
    test.visitMethodInsn(INVOKESTATIC, baseClassName + dim + "ASM", "run",
            "()" + a + "LTestMeetIncompatibleInterfaceArrays$I1;", false);
    test.visitVarInsn(ASTORE, 0);
    if (dim > 0) {
        test.visitVarInsn(ALOAD, 0);
        for (int i = 1; i <= dim; i++) {
            test.visitInsn(ICONST_0);
            test.visitInsn(AALOAD);
        }
        test.visitVarInsn(ASTORE, 1);
    }
    test.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    test.visitVarInsn(ALOAD, dim > 0 ? 1 : 0);
    test.visitMethodInsn(INVOKEINTERFACE, "TestMeetIncompatibleInterfaceArrays$I1", "getName",
            "()Ljava/lang/String;", true);
    test.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V", false);
    test.visitInsn(RETURN);
    test.visitMaxs(0, 0);
    test.visitEnd();

    // Get the bytes of the class..
    byte[] b = cw.toByteArray();
    // ..and write them into a class file (for debugging)
    FileOutputStream fos = new FileOutputStream(PATH + baseClassName + dim + "ASM.class");
    fos.write(b);
    fos.close();

}

Example 17

Source File: TransitiveOverrideCFV50.java From openjdk-jdk9 with GNU General Public License v2.0

4 votes

public static byte[] dumpP2C() {

        ClassWriter cw = new ClassWriter(0);
        MethodVisitor mv;

        cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, "P2/C", null, "P1/B", null);

        {
            mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, "P1/B", "<init>", "()V", false);
            mv.visitInsn(RETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
        }
        {
            mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null);
            mv.visitCode();
            mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
            mv.visitLdcInsn("P2/C.m");
            mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false);
            mv.visitIntInsn(BIPUSH, 3);
            mv.visitInsn(IRETURN);
            mv.visitMaxs(2, 1);
            mv.visitEnd();
        }
        {
            mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null);
            mv.visitCode();
            mv.visitTypeInsn(NEW, "P2/C");
            mv.visitInsn(DUP);
            mv.visitMethodInsn(INVOKESPECIAL, "P2/C", "<init>", "()V", false);
            mv.visitMethodInsn(INVOKEVIRTUAL, "P1/A", "m", "()I", false);
            mv.visitInsn(IRETURN);
            mv.visitMaxs(3, 2);
            mv.visitEnd();
        }

        cw.visitEnd();

        return cw.toByteArray();
    }

Example 18

Source File: ObjectType.java From openjdk-8-source with GNU General Public License v2.0

4 votes

@Override
public Type loadEmpty(final MethodVisitor method) {
    method.visitFieldInsn(GETSTATIC, className(ScriptRuntime.class), "EMPTY", typeDescriptor(Undefined.class));
    return OBJECT;
}

Example 19

Source File: FieldInsnNode.java From nashorn with GNU General Public License v2.0

4 votes

@Override
public void accept(final MethodVisitor cv) {
    cv.visitFieldInsn(opcode, owner, name, desc);
}

Example 20

Source File: TestMeetIncompatibleInterfaceArrays.java From openjdk-jdk8u-backup with GNU General Public License v2.0

4 votes

static void generateTestClass(int dim, boolean good) throws Exception {
    String baseClassName = "MeetIncompatibleInterfaceArrays";
    if (good)
        baseClassName += "Good";
    String createName = "createI2" + (good ? "1" : "") + "Array";
    String a = "";
    for (int i = 0; i < dim; i++)
        a += "[";
    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
    cw.visit(V1_8, ACC_PUBLIC, baseClassName + dim + "ASM", null, "java/lang/Object", null);
    MethodVisitor constr = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
    constr.visitCode();
    constr.visitVarInsn(ALOAD, 0);
    constr.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
    constr.visitInsn(RETURN);
    constr.visitMaxs(0, 0);
    constr.visitEnd();
    MethodVisitor run = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "run",
            "()" + a + "LTestMeetIncompatibleInterfaceArrays$I1;", null, null);
    run.visitCode();
    if (dim == 4) {
        run.visitMethodInsn(INVOKESTATIC, "TestMeetIncompatibleInterfaceArrays$Helper", createName + 3,
                "()" + "[[[" + "LTestMeetIncompatibleInterfaceArrays$I2;", false);
    } else {
        run.visitMethodInsn(INVOKESTATIC, "TestMeetIncompatibleInterfaceArrays$Helper", createName + dim,
                "()" + a + "LTestMeetIncompatibleInterfaceArrays$I2;", false);
    }
    run.visitInsn(ARETURN);
    run.visitMaxs(0, 0);
    run.visitEnd();
    MethodVisitor test = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "test", "()V", null, null);
    test.visitCode();
    test.visitMethodInsn(INVOKESTATIC, baseClassName + dim + "ASM", "run",
            "()" + a + "LTestMeetIncompatibleInterfaceArrays$I1;", false);
    test.visitVarInsn(ASTORE, 0);
    if (dim > 0) {
        test.visitVarInsn(ALOAD, 0);
        for (int i = 1; i <= dim; i++) {
            test.visitInsn(ICONST_0);
            test.visitInsn(AALOAD);
        }
        test.visitVarInsn(ASTORE, 1);
    }
    test.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
    test.visitVarInsn(ALOAD, dim > 0 ? 1 : 0);
    test.visitMethodInsn(INVOKEINTERFACE, "TestMeetIncompatibleInterfaceArrays$I1", "getName",
            "()Ljava/lang/String;", true);
    test.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V", false);
    test.visitInsn(RETURN);
    test.visitMaxs(0, 0);
    test.visitEnd();

    // Get the bytes of the class..
    byte[] b = cw.toByteArray();
    // ..and write them into a class file (for debugging)
    FileOutputStream fos = new FileOutputStream(PATH + baseClassName + dim + "ASM.class");
    fos.write(b);
    fos.close();

}