Example usage for org.objectweb.asm MethodVisitor visitTryCatchBlock

Introduction

In this page you can find the example usage for org.objectweb.asm MethodVisitor visitTryCatchBlock.

Prototype

public void visitTryCatchBlock(final Label start, final Label end, final Label handler, final String type) 

Source Link

Document

Visits a try catch block.

Usage

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

/**
 * Create a method that can be used to intercept the calls to hasStaticInitializer made in the ObjectStreamClass.
 * The method will ask SpringLoaded whether the type has a static initializer. SpringLoaded will be able to answer
 * if it is a reloadable type. If it is not a reloadable type then springloaded will throw an exception which will
 * be caught here and the 'regular' call to hasStaticInitializer will be made.
 * /*from   w w  w .ja  v a  2 s  .  c  o m*/
 * @param cw the classwriter to create the method in
 * @param classname the name of the class being visited
 */
public static void generateJLObjectStream_hasStaticInitializer(ClassWriter cw, String classname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, jloObjectStream_hasInitializerMethod,
            "Ljava/lang/reflect/Method;", null, null);
    fv.visitEnd();

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, jloObjectStream_hasInitializerMethod,
            "(Ljava/lang/Class;)Z", null, null);
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, jloObjectStream_hasInitializerMethod, "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_1);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/Boolean");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Boolean", "booleanValue", "()Z", false);
    mv.visitLabel(l1);
    mv.visitInsn(IRETURN);
    mv.visitLabel(l2);
    // If not a reloadable type, we'll end up here (the method we called threw IllegalStateException), just make that native method call
    mv.visitVarInsn(ASTORE, 1);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESTATIC, classname, "hasStaticInitializer", "(Ljava/lang/Class;)Z");
    mv.visitInsn(IRETURN);
    mv.visitMaxs(3, 1);
    mv.visitEnd();
}

---

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLRF_Get(ClassWriter cw, String classname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, jlrfGetMember, "Ljava/lang/reflect/Method;", null,
            null);//from ww  w .  j  a  v  a 2s  .c o  m
    fv.visitEnd();

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, jlrfGetMember, jlrfGetDescriptor, null,
            new String[] { "java/lang/IllegalAccessException", "java/lang/IllegalArgumentException" });
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitFieldInsn(GETSTATIC, classname, jlrfGetMember, "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Field", "get",
            "(Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, jlrfGetMember, "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_2);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0); // target field
    mv.visitInsn(AASTORE);
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_1);
    mv.visitVarInsn(ALOAD, 1); // instance on which to get the field
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitLabel(l1);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 2);
    Label l5 = new Label();
    mv.visitLabel(l5);
    Label l6 = new Label();
    mv.visitLabel(l6);
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ARETURN);
    Label l7 = new Label();
    mv.visitLabel(l7);
    mv.visitMaxs(8, 4);
    mv.visitEnd();
}

---

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLRM_Invoke(ClassWriter cw, String classname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, jlrmInvokeMember, "Ljava/lang/reflect/Method;",
            null, null);/*from   ww w .  j  a va 2  s .c om*/
    fv.visitEnd();

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, jlrmInvokeMember, jlrmInvokeDescriptor, null,
            new String[] { "java/lang/IllegalAccessException", "java/lang/reflect/InvocationTargetException" });
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitFieldInsn(GETSTATIC, classname, jlrmInvokeMember, "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, jlrmInvokeMember, "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_3);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0); // target method
    mv.visitInsn(AASTORE);
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_1);
    mv.visitVarInsn(ALOAD, 1); // instance on which to call the method
    mv.visitInsn(AASTORE);
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_2);
    mv.visitVarInsn(ALOAD, 2); // arguments to method call
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitLabel(l1);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 3);
    Label l5 = new Label();
    mv.visitLabel(l5);
    Label l6 = new Label();
    mv.visitLabel(l6);
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ARETURN);
    Label l7 = new Label();
    mv.visitLabel(l7);
    mv.visitMaxs(8, 4);
    mv.visitEnd();
}

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From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLC_GetDeclaredConstructors(ClassWriter cw, String classname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, jlcGetDeclaredConstructorsMember,
            "Ljava/lang/reflect/Method;", null, null);
    fv.visitEnd();/*from ww w .ja v a  2  s  .  c  o m*/

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, jlcGetDeclaredConstructorsMember,
            jlcGetDeclaredConstructorsDescriptor, null, null);
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitFieldInsn(GETSTATIC, classname, jlcGetDeclaredConstructorsMember, "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getDeclaredConstructors",
            "()[Ljava/lang/reflect/Constructor;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, jlcGetDeclaredConstructorsMember, "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_1);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitTypeInsn(CHECKCAST, "[Ljava/lang/reflect/Constructor;");
    mv.visitLabel(l1);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 1);
    Label l5 = new Label();
    mv.visitLabel(l5);
    Label l6 = new Label();
    mv.visitLabel(l6);
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ARETURN);
    Label l7 = new Label();
    mv.visitLabel(l7);
    //      mv.visitLocalVariable("clazz", "Ljava/lang/Class;", "Ljava/lang/Class<*>;", l3, l7, 0);
    //      mv.visitLocalVariable("e", "Ljava/lang/Exception;", null, l5, l7, 1);
    mv.visitMaxs(6, 2);
    mv.visitEnd();
}

---

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLCGMODS(ClassWriter cw, String classname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, "__sljlcgmods", "Ljava/lang/reflect/Method;", null,
            null);//from  ww w.  j a v  a2 s . c o  m
    fv.visitEnd();

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "__sljlcgmods", "(Ljava/lang/Class;)I",
            "(Ljava/lang/Class<*>;)I", null);
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitFieldInsn(GETSTATIC, classname, "__sljlcgmods", "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getModifiers", "()I", false);
    mv.visitInsn(IRETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, "__sljlcgmods", "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_1);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/Integer");
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Integer", "intValue", "()I", false);
    mv.visitLabel(l1);
    mv.visitInsn(IRETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 1);
    Label l5 = new Label();
    mv.visitLabel(l5);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Exception", "printStackTrace", "()V", false);
    Label l6 = new Label();
    mv.visitLabel(l6);
    mv.visitInsn(ICONST_0);
    mv.visitInsn(IRETURN);
    Label l7 = new Label();
    mv.visitLabel(l7);
    //      mv.visitLocalVariable("clazz", "Ljava/lang/Class;", "Ljava/lang/Class<*>;", l3, l7, 0);
    //      mv.visitLocalVariable("e", "Ljava/lang/Exception;", null, l5, l7, 1);
    mv.visitMaxs(6, 2);
    mv.visitEnd();

}

---

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLCGDC(ClassWriter cw, String classname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, "__sljlcgdc", "Ljava/lang/reflect/Method;", null,
            null);/*from   w ww.  j  a  va 2  s.  c om*/
    fv.visitEnd();

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC + ACC_VARARGS, "__sljlcgdc",
            "(Ljava/lang/Class;[Ljava/lang/Class;)Ljava/lang/reflect/Constructor;", null,
            new String[] { "java/lang/NoSuchMethodException" });
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/reflect/InvocationTargetException");
    Label l3 = new Label();
    mv.visitTryCatchBlock(l0, l1, l3, "java/lang/Exception");
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitFieldInsn(GETSTATIC, classname, "__sljlcgdc", "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l5 = new Label();
    mv.visitLabel(l5);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getDeclaredConstructor",
            "([Ljava/lang/Class;)Ljava/lang/reflect/Constructor;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, "__sljlcgdc", "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_2);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitInsn(AASTORE);
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_1);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/reflect/Constructor");
    mv.visitLabel(l1);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 2);
    Label l6 = new Label();
    mv.visitLabel(l6);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "printStackTrace", "()V",
            false);
    Label l7 = new Label();
    mv.visitLabel(l7);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
            "()Ljava/lang/Throwable;", false);
    mv.visitTypeInsn(INSTANCEOF, "java/lang/NoSuchMethodException");
    Label l8 = new Label();
    mv.visitJumpInsn(IFEQ, l8);
    Label l9 = new Label();
    mv.visitLabel(l9);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
            "()Ljava/lang/Throwable;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/NoSuchMethodException");
    mv.visitInsn(ATHROW);
    mv.visitLabel(l3);
    mv.visitVarInsn(ASTORE, 2);
    Label l10 = new Label();
    mv.visitLabel(l10);
    //      mv.visitVarInsn(ALOAD, 2);
    //      mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Exception", "printStackTrace", "()V");
    mv.visitLabel(l8);
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ARETURN);
    Label l11 = new Label();
    mv.visitLabel(l11);
    //      mv.visitLocalVariable("clazz", "Ljava/lang/Class;", "Ljava/lang/Class<*>;", l4, l11, 0);
    //      mv.visitLocalVariable("parameterTypes", "[Ljava/lang/Class;", null, l4, l11, 1);
    //      mv.visitLocalVariable("ite", "Ljava/lang/reflect/InvocationTargetException;", null, l6, l3, 2);
    //      mv.visitLocalVariable("e", "Ljava/lang/Exception;", null, l10, l8, 2);
    mv.visitMaxs(6, 3);
    mv.visitEnd();

}

---

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLCGC(ClassWriter cw, String classname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, "__sljlcgc", "Ljava/lang/reflect/Method;", null,
            null);//from  www  . ja  va  2  s .c o  m
    fv.visitEnd();

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC + ACC_VARARGS, "__sljlcgc",
            "(Ljava/lang/Class;[Ljava/lang/Class;)Ljava/lang/reflect/Constructor;", null,
            new String[] { "java/lang/NoSuchMethodException" });
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/reflect/InvocationTargetException");
    Label l3 = new Label();
    mv.visitTryCatchBlock(l0, l1, l3, "java/lang/Exception");
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitFieldInsn(GETSTATIC, classname, "__sljlcgc", "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l5 = new Label();
    mv.visitLabel(l5);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getConstructor",
            "([Ljava/lang/Class;)Ljava/lang/reflect/Constructor;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, "__sljlcgc", "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_2);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitInsn(AASTORE);
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_1);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/reflect/Constructor");
    mv.visitLabel(l1);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 2);
    Label l6 = new Label();
    mv.visitLabel(l6);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "printStackTrace", "()V",
            false);
    Label l7 = new Label();
    mv.visitLabel(l7);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
            "()Ljava/lang/Throwable;", false);
    mv.visitTypeInsn(INSTANCEOF, "java/lang/NoSuchMethodException");
    Label l8 = new Label();
    mv.visitJumpInsn(IFEQ, l8);
    Label l9 = new Label();
    mv.visitLabel(l9);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
            "()Ljava/lang/Throwable;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/NoSuchMethodException");
    mv.visitInsn(ATHROW);
    mv.visitLabel(l3);
    mv.visitVarInsn(ASTORE, 2);
    Label l10 = new Label();
    mv.visitLabel(l10);
    //      mv.visitVarInsn(ALOAD, 2);
    //      mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Exception", "printStackTrace", "()V");
    mv.visitLabel(l8);
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ARETURN);
    Label l11 = new Label();
    mv.visitLabel(l11);
    //      mv.visitLocalVariable("clazz", "Ljava/lang/Class;", "Ljava/lang/Class<*>;", l4, l11, 0);
    //      mv.visitLocalVariable("parameterTypes", "[Ljava/lang/Class;", null, l4, l11, 1);
    //      mv.visitLocalVariable("ite", "Ljava/lang/reflect/InvocationTargetException;", null, l6, l3, 2);
    //      mv.visitLocalVariable("e", "Ljava/lang/Exception;", null, l10, l8, 2);
    mv.visitMaxs(6, 3);
    mv.visitEnd();

}

---

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLCMethod(ClassWriter cw, String classname, String membername, String methodname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, membername, "Ljava/lang/reflect/Method;", null,
            null);/* w w  w  . jav a  2  s.c o  m*/
    fv.visitEnd();

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC + ACC_VARARGS, membername,
            "(Ljava/lang/Class;Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;", null,
            new String[] { "java/lang/NoSuchMethodException" });
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/reflect/InvocationTargetException");
    Label l3 = new Label();
    mv.visitTryCatchBlock(l0, l1, l3, "java/lang/Exception");
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitFieldInsn(GETSTATIC, classname, membername, "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l5 = new Label();
    mv.visitLabel(l5);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", methodname,
            "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, membername, "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_3);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitInsn(AASTORE);
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_1);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitInsn(AASTORE);
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_2);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/reflect/Method");
    mv.visitLabel(l1);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 3);
    Label l6 = new Label();
    mv.visitLabel(l6);
    // Don't print the exception if just unwrapping it
    //      mv.visitVarInsn(ALOAD, 3);
    //      mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "printStackTrace", "()V");
    Label l7 = new Label();
    mv.visitLabel(l7);
    mv.visitVarInsn(ALOAD, 3);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
            "()Ljava/lang/Throwable;", false);
    mv.visitTypeInsn(INSTANCEOF, "java/lang/NoSuchMethodException");
    Label l8 = new Label();
    mv.visitJumpInsn(IFEQ, l8);
    Label l9 = new Label();
    mv.visitLabel(l9);
    mv.visitVarInsn(ALOAD, 3);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
            "()Ljava/lang/Throwable;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/NoSuchMethodException");
    mv.visitInsn(ATHROW);
    mv.visitLabel(l3);
    mv.visitVarInsn(ASTORE, 3);
    Label l10 = new Label();
    mv.visitLabel(l10);
    mv.visitVarInsn(ALOAD, 3);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Exception", "printStackTrace", "()V", false);
    mv.visitLabel(l8);
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ARETURN);
    Label l11 = new Label();
    mv.visitLabel(l11);
    //      mv.visitLocalVariable("clazz", "Ljava/lang/Class;", "Ljava/lang/Class<*>;", l4, l11, 0);
    //      mv.visitLocalVariable("methodname", "Ljava/lang/String;", null, l4, l11, 1);
    //      mv.visitLocalVariable("parameterTypes", "[Ljava/lang/Class;", null, l4, l11, 2);
    //      mv.visitLocalVariable("ite", "Ljava/lang/reflect/InvocationTargetException;", null, l6, l3, 3);
    //      mv.visitLocalVariable("e", "Ljava/lang/Exception;", null, l10, l8, 3);
    mv.visitMaxs(6, 4);
    mv.visitEnd();
}

---

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLCGDF(ClassWriter cw, String classname, String fieldname, String methodname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC_STATIC, fieldname, "Ljava/lang/reflect/Method;", null, null);
    fv.visitEnd();//from  ww w . j  av  a 2s . c o  m

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, fieldname,
            "(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/reflect/Field;", null,
            new String[] { "java/lang/NoSuchFieldException" });
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/reflect/InvocationTargetException");
    Label l3 = new Label();
    mv.visitTryCatchBlock(l0, l1, l3, "java/lang/Exception");
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitFieldInsn(GETSTATIC, classname, fieldname, "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l5 = new Label();
    mv.visitLabel(l5);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", methodname,
            "(Ljava/lang/String;)Ljava/lang/reflect/Field;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, fieldname, "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_2);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitInsn(AASTORE);
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_1);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/reflect/Field");
    mv.visitLabel(l1);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 2);
    Label l6 = new Label();
    mv.visitLabel(l6);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
            "()Ljava/lang/Throwable;", false);
    mv.visitTypeInsn(INSTANCEOF, "java/lang/NoSuchFieldException");
    Label l7 = new Label();
    mv.visitJumpInsn(IFEQ, l7);
    Label l8 = new Label();
    mv.visitLabel(l8);
    mv.visitVarInsn(ALOAD, 2);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/InvocationTargetException", "getCause",
            "()Ljava/lang/Throwable;", false);
    mv.visitTypeInsn(CHECKCAST, "java/lang/NoSuchFieldException");
    mv.visitInsn(ATHROW);
    mv.visitLabel(l3);
    mv.visitVarInsn(ASTORE, 2);
    mv.visitLabel(l7);
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ARETURN);
    Label l9 = new Label();
    mv.visitLabel(l9);
    //      mv.visitLocalVariable("clazz", "Ljava/lang/Class;", "Ljava/lang/Class<*>;", l4, l9, 0);
    //      mv.visitLocalVariable("fieldname", "Ljava/lang/String;", null, l4, l9, 1);
    //      mv.visitLocalVariable("ite", "Ljava/lang/reflect/InvocationTargetException;", null, l6, l3, 2);
    mv.visitMaxs(6, 3);
    mv.visitEnd();
}

---

From source file:org.springsource.loaded.SystemClassReflectionRewriter.java

License:Apache License

public static void generateJLCGDMS(ClassWriter cw, String classname, String field, String methodname) {
    FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, field, "Ljava/lang/reflect/Method;", null, null);
    fv.visitEnd();/*from   www  .  j ava 2  s  .  c o m*/

    MethodVisitor mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, field,
            "(Ljava/lang/Class;)[Ljava/lang/reflect/Method;", null, null);
    mv.visitCode();
    Label l0 = new Label();
    Label l1 = new Label();
    Label l2 = new Label();
    mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Exception");
    Label l3 = new Label();
    mv.visitLabel(l3);
    mv.visitFieldInsn(GETSTATIC, classname, field, "Ljava/lang/reflect/Method;");
    mv.visitJumpInsn(IFNONNULL, l0);
    Label l4 = new Label();
    mv.visitLabel(l4);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", methodname, "()[Ljava/lang/reflect/Method;", false);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l0);
    mv.visitFieldInsn(GETSTATIC, classname, field, "Ljava/lang/reflect/Method;");
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ICONST_1);
    mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
    mv.visitInsn(DUP);
    mv.visitInsn(ICONST_0);
    mv.visitVarInsn(ALOAD, 0);
    mv.visitInsn(AASTORE);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/reflect/Method", "invoke",
            "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;", false);
    mv.visitTypeInsn(CHECKCAST, "[Ljava/lang/reflect/Method;");
    mv.visitLabel(l1);
    mv.visitInsn(ARETURN);
    mv.visitLabel(l2);
    mv.visitVarInsn(ASTORE, 1);
    Label l5 = new Label();
    mv.visitLabel(l5);
    mv.visitInsn(ACONST_NULL);
    mv.visitInsn(ARETURN);
    Label l6 = new Label();
    mv.visitLabel(l6);
    //      mv.visitLocalVariable("clazz", "Ljava/lang/Class;", "Ljava/lang/Class<*>;", l3, l6, 0);
    //      mv.visitLocalVariable("e", "Ljava/lang/Exception;", null, l5, l6, 1);
    mv.visitMaxs(6, 2);
    mv.visitEnd();
}

---

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