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

The following examples show how to use jdk.internal.org.objectweb.asm.MethodVisitor#visitFrame() . These examples are extracted from open source projects. 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 Project: dragonwell8_jdk   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 2
Source Project: TencentKona-8   File: RedefineRunningMethodsWithResolutionErrors.java    License: GNU General Public License v2.0 6 votes vote down vote up 
private static void createMethodBody(MethodVisitor mv) {
    Label classExists = new Label();

    // Cache resolution errors
    createLoadNonExistentClassCode(mv, classExists);

    // Redefine our own class and method
    mv.visitMethodInsn(INVOKESTATIC, "RedefineRunningMethodsWithResolutionErrors", "redefine", "()V");

    // Provoke the same error again to make sure the resolution error cache works
    createLoadNonExistentClassCode(mv, classExists);

    // Test passed
    mv.visitInsn(RETURN);

    mv.visitFrame(F_SAME, 0, new Object[0], 0, new Object[0]);
    mv.visitLabel(classExists);

    createThrowRuntimeExceptionCode(mv, "Loaded class that shouldn't exist (\"NonExistentClass\")");
}
Example 3
Source Project: TencentKona-8   File: RedefineRunningMethodsWithResolutionErrors.java    License: GNU General Public License v2.0 6 votes vote down vote up 
private static void createLoadNonExistentClassCode(MethodVisitor mv, Label classExists) {
    Label tryLoadBegin = new Label();
    Label tryLoadEnd = new Label();
    Label catchLoadBlock = new Label();
    mv.visitTryCatchBlock(tryLoadBegin, tryLoadEnd, catchLoadBlock, "java/lang/NoClassDefFoundError");

    // Try to load a class that does not exist to provoke resolution errors
    mv.visitLabel(tryLoadBegin);
    mv.visitMethodInsn(INVOKESTATIC, "NonExistentClass", "nonExistentMethod", "()V");
    mv.visitLabel(tryLoadEnd);

    // No NoClassDefFoundError means NonExistentClass existed, which shouldn't happen
    mv.visitJumpInsn(GOTO, classExists);

    mv.visitFrame(F_SAME1, 0, new Object[0], 1, new Object[] { "java/lang/NoClassDefFoundError" });
    mv.visitLabel(catchLoadBlock);

    // Ignore the expected NoClassDefFoundError
    mv.visitInsn(POP);
}
Example 4
Source Project: jdk8u_jdk   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 5
Source Project: jdk8u60   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 6
Source Project: openjdk-jdk8u   File: RedefineRunningMethodsWithResolutionErrors.java    License: GNU General Public License v2.0 6 votes vote down vote up 
private static void createMethodBody(MethodVisitor mv) {
    Label classExists = new Label();

    // Cache resolution errors
    createLoadNonExistentClassCode(mv, classExists);

    // Redefine our own class and method
    mv.visitMethodInsn(INVOKESTATIC, "RedefineRunningMethodsWithResolutionErrors", "redefine", "()V");

    // Provoke the same error again to make sure the resolution error cache works
    createLoadNonExistentClassCode(mv, classExists);

    // Test passed
    mv.visitInsn(RETURN);

    mv.visitFrame(F_SAME, 0, new Object[0], 0, new Object[0]);
    mv.visitLabel(classExists);

    createThrowRuntimeExceptionCode(mv, "Loaded class that shouldn't exist (\"NonExistentClass\")");
}
Example 7
Source Project: openjdk-jdk8u   File: RedefineRunningMethodsWithResolutionErrors.java    License: GNU General Public License v2.0 6 votes vote down vote up 
private static void createLoadNonExistentClassCode(MethodVisitor mv, Label classExists) {
    Label tryLoadBegin = new Label();
    Label tryLoadEnd = new Label();
    Label catchLoadBlock = new Label();
    mv.visitTryCatchBlock(tryLoadBegin, tryLoadEnd, catchLoadBlock, "java/lang/NoClassDefFoundError");

    // Try to load a class that does not exist to provoke resolution errors
    mv.visitLabel(tryLoadBegin);
    mv.visitMethodInsn(INVOKESTATIC, "NonExistentClass", "nonExistentMethod", "()V");
    mv.visitLabel(tryLoadEnd);

    // No NoClassDefFoundError means NonExistentClass existed, which shouldn't happen
    mv.visitJumpInsn(GOTO, classExists);

    mv.visitFrame(F_SAME1, 0, new Object[0], 1, new Object[] { "java/lang/NoClassDefFoundError" });
    mv.visitLabel(catchLoadBlock);

    // Ignore the expected NoClassDefFoundError
    mv.visitInsn(POP);
}
Example 8
Source Project: openjdk-jdk8u   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 9
Source Project: jdk8u-jdk   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 10
Source Project: openjdk-jdk8u-backup   File: RedefineRunningMethodsWithResolutionErrors.java    License: GNU General Public License v2.0 6 votes vote down vote up 
private static void createLoadNonExistentClassCode(MethodVisitor mv, Label classExists) {
    Label tryLoadBegin = new Label();
    Label tryLoadEnd = new Label();
    Label catchLoadBlock = new Label();
    mv.visitTryCatchBlock(tryLoadBegin, tryLoadEnd, catchLoadBlock, "java/lang/NoClassDefFoundError");

    // Try to load a class that does not exist to provoke resolution errors
    mv.visitLabel(tryLoadBegin);
    mv.visitMethodInsn(INVOKESTATIC, "NonExistentClass", "nonExistentMethod", "()V");
    mv.visitLabel(tryLoadEnd);

    // No NoClassDefFoundError means NonExistentClass existed, which shouldn't happen
    mv.visitJumpInsn(GOTO, classExists);

    mv.visitFrame(F_SAME1, 0, new Object[0], 1, new Object[] { "java/lang/NoClassDefFoundError" });
    mv.visitLabel(catchLoadBlock);

    // Ignore the expected NoClassDefFoundError
    mv.visitInsn(POP);
}
Example 11
Source Project: openjdk-jdk8u-backup   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 12
Source Project: jdk8u-dev-jdk   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 13
Source Project: openjdk-jdk9   File: RedefineRunningMethodsWithResolutionErrors.java    License: GNU General Public License v2.0 6 votes vote down vote up 
private static void createMethodBody(MethodVisitor mv) {
    Label classExists = new Label();

    // Cache resolution errors
    createLoadNonExistentClassCode(mv, classExists);

    // Redefine our own class and method
    mv.visitMethodInsn(INVOKESTATIC, "RedefineRunningMethodsWithResolutionErrors", "redefine", "()V");

    // Provoke the same error again to make sure the resolution error cache works
    createLoadNonExistentClassCode(mv, classExists);

    // Test passed
    mv.visitInsn(RETURN);

    mv.visitFrame(F_SAME, 0, new Object[0], 0, new Object[0]);
    mv.visitLabel(classExists);

    createThrowRuntimeExceptionCode(mv, "Loaded class that shouldn't exist (\"NonExistentClass\")");
}
Example 14
Source Project: openjdk-jdk9   File: RedefineRunningMethodsWithResolutionErrors.java    License: GNU General Public License v2.0 6 votes vote down vote up 
private static void createLoadNonExistentClassCode(MethodVisitor mv, Label classExists) {
    Label tryLoadBegin = new Label();
    Label tryLoadEnd = new Label();
    Label catchLoadBlock = new Label();
    mv.visitTryCatchBlock(tryLoadBegin, tryLoadEnd, catchLoadBlock, "java/lang/NoClassDefFoundError");

    // Try to load a class that does not exist to provoke resolution errors
    mv.visitLabel(tryLoadBegin);
    mv.visitMethodInsn(INVOKESTATIC, "NonExistentClass", "nonExistentMethod", "()V");
    mv.visitLabel(tryLoadEnd);

    // No NoClassDefFoundError means NonExistentClass existed, which shouldn't happen
    mv.visitJumpInsn(GOTO, classExists);

    mv.visitFrame(F_SAME1, 0, new Object[0], 1, new Object[] { "java/lang/NoClassDefFoundError" });
    mv.visitLabel(catchLoadBlock);

    // Ignore the expected NoClassDefFoundError
    mv.visitInsn(POP);
}
Example 15
Source Project: openjdk-jdk9   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 16
Source Project: jdk8u-jdk   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 17
Source Project: hottub   File: RedefineRunningMethodsWithResolutionErrors.java    License: GNU General Public License v2.0 6 votes vote down vote up 
private static void createMethodBody(MethodVisitor mv) {
    Label classExists = new Label();

    // Cache resolution errors
    createLoadNonExistentClassCode(mv, classExists);

    // Redefine our own class and method
    mv.visitMethodInsn(INVOKESTATIC, "RedefineRunningMethodsWithResolutionErrors", "redefine", "()V");

    // Provoke the same error again to make sure the resolution error cache works
    createLoadNonExistentClassCode(mv, classExists);

    // Test passed
    mv.visitInsn(RETURN);

    mv.visitFrame(F_SAME, 0, new Object[0], 0, new Object[0]);
    mv.visitLabel(classExists);

    createThrowRuntimeExceptionCode(mv, "Loaded class that shouldn't exist (\"NonExistentClass\")");
}
Example 18
Source Project: nashorn   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
        case Opcodes.F_NEW:
        case Opcodes.F_FULL:
            mv.visitFrame(type,
                    local.size(),
                    asArray(local),
                    stack.size(),
                    asArray(stack));
            break;
        case Opcodes.F_APPEND:
            mv.visitFrame(type, local.size(), asArray(local), 0, null);
            break;
        case Opcodes.F_CHOP:
            mv.visitFrame(type, local.size(), null, 0, null);
            break;
        case Opcodes.F_SAME:
            mv.visitFrame(type, 0, null, 0, null);
            break;
        case Opcodes.F_SAME1:
            mv.visitFrame(type, 0, null, 1, asArray(stack));
            break;
    }
}
Example 19
Source Project: hottub   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}
Example 20
Source Project: openjdk-8   File: FrameNode.java    License: GNU General Public License v2.0 6 votes vote down vote up 
/**
 * Makes the given visitor visit this stack map frame.
 *
 * @param mv
 *            a method visitor.
 */
@Override
public void accept(final MethodVisitor mv) {
    switch (type) {
    case Opcodes.F_NEW:
    case Opcodes.F_FULL:
        mv.visitFrame(type, local.size(), asArray(local), stack.size(),
                asArray(stack));
        break;
    case Opcodes.F_APPEND:
        mv.visitFrame(type, local.size(), asArray(local), 0, null);
        break;
    case Opcodes.F_CHOP:
        mv.visitFrame(type, local.size(), null, 0, null);
        break;
    case Opcodes.F_SAME:
        mv.visitFrame(type, 0, null, 0, null);
        break;
    case Opcodes.F_SAME1:
        mv.visitFrame(type, 0, null, 1, asArray(stack));
        break;
    }
}