Java ClassType.concreteMethodByName方法代码示例

import com.sun.jdi.ClassType; //导入方法依赖的package包/类
private boolean ungrabWindowAWT(ThreadReference tr, ObjectReference grabbedWindow) {
    // Call XBaseWindow.ungrabInput()
    try {
        VirtualMachine vm = MirrorWrapper.virtualMachine(grabbedWindow);
        List<ReferenceType> xbaseWindowClassesByName = VirtualMachineWrapper.classesByName(vm, "sun.awt.X11.XBaseWindow");
        if (xbaseWindowClassesByName.isEmpty()) {
            logger.info("Unable to release X grab, no XBaseWindow class in target VM "+VirtualMachineWrapper.description(vm));
            return false;
        }
        ClassType XBaseWindowClass = (ClassType) xbaseWindowClassesByName.get(0);
        Method ungrabInput = XBaseWindowClass.concreteMethodByName("ungrabInput", "()V");
        if (ungrabInput == null) {
            logger.info("Unable to release X grab, method ungrabInput not found in target VM "+VirtualMachineWrapper.description(vm));
            return false;
        }
        XBaseWindowClass.invokeMethod(tr, ungrabInput, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
    } catch (VMDisconnectedExceptionWrapper vmdex) {
        return true; // Disconnected, all is good.
    } catch (Exception ex) {
        logger.log(Level.INFO, "Unable to release X grab.", ex);
        return false;
    }
    return true;
}
 

import com.sun.jdi.ClassType; //导入方法依赖的package包/类
private boolean ungrabWindowFX(ThreadReference tr) {
    // javafx.stage.Window.impl_getWindows() - Iterator<Window>
    // while (iterator.hasNext()) {
    //     Window w = iterator.next();
    //     ungrabWindowFX(w);
    // }
    try {
        VirtualMachine vm = MirrorWrapper.virtualMachine(tr);
        List<ReferenceType> windowClassesByName = VirtualMachineWrapper.classesByName(vm, "javafx.stage.Window");
        if (windowClassesByName.isEmpty()) {
            logger.info("Unable to release FX X grab, no javafx.stage.Window class in target VM "+VirtualMachineWrapper.description(vm));
            return true; // We do not know whether there was any grab
        }
        ClassType WindowClass = (ClassType) windowClassesByName.get(0);
        Method getWindowsMethod = WindowClass.concreteMethodByName("impl_getWindows", "()Ljava/util/Iterator;");
        if (getWindowsMethod == null) {
            logger.info("Unable to release FX X grab, no impl_getWindows() method in "+WindowClass);
            return true; // We do not know whether there was any grab
        }
        ObjectReference windowsIterator = (ObjectReference) WindowClass.invokeMethod(tr, getWindowsMethod, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
        if (windowsIterator == null) {
            return true; // We do not know whether there was any grab
        }
        InterfaceType IteratorClass = (InterfaceType) VirtualMachineWrapper.classesByName(vm, Iterator.class.getName()).get(0);
        Method hasNext = IteratorClass.methodsByName("hasNext", "()Z").get(0);
        Method next = IteratorClass.methodsByName("next", "()Ljava/lang/Object;").get(0);
        while (hasNext(hasNext, tr, windowsIterator)) {
            ObjectReference w = next(next, tr, windowsIterator);
            ungrabWindowFX(WindowClass, w, tr);
        }
    } catch (VMDisconnectedExceptionWrapper vmdex) {
        return true; // Disconnected, all is good.
    } catch (Exception ex) {
        logger.log(Level.INFO, "Unable to release FX X grab (if any).", ex);
        return true; // We do not know whether there was any grab
    }
    return true;
}
 

import com.sun.jdi.ClassType; //导入方法依赖的package包/类
private static void retrieveScreenshots(JPDAThreadImpl t, final ThreadReference tr, VirtualMachine vm, DebuggerEngine engine, JPDADebuggerImpl d, final List<RemoteScreenshot> screenshots) throws RetrievalException {
    try {
        final ClassType windowClass = getClass(vm, tr, "javafx.stage.Window");
        
        Method getWindows = windowClass.concreteMethodByName("impl_getWindows", "()Ljava/util/Iterator;");
        Method windowName = windowClass.concreteMethodByName("impl_getMXWindowType", "()Ljava/lang/String;");

        ObjectReference iterator = (ObjectReference)windowClass.invokeMethod(tr, getWindows, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
        ClassType iteratorClass = (ClassType)iterator.referenceType();
        Method hasNext = iteratorClass.concreteMethodByName("hasNext", "()Z");
        Method next = iteratorClass.concreteMethodByName("next", "()Ljava/lang/Object;");
        
        boolean nextFlag = false;
        do {
            BooleanValue bv = (BooleanValue)iterator.invokeMethod(tr, hasNext, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
            nextFlag = bv.booleanValue();
            if (nextFlag) {
                ObjectReference window = (ObjectReference)iterator.invokeMethod(tr, next, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
                StringReference name = (StringReference)window.invokeMethod(tr, windowName, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
                SGComponentInfo windowInfo = new SGComponentInfo(t, window);
                
                screenshots.add(createRemoteFXScreenshot(engine, vm, tr, name.value(), window, windowInfo));
            }
        } while (nextFlag);
    } catch (Exception e) {
        throw new RetrievalException(e.getMessage(), e);
    }
}
 

import com.sun.jdi.ClassType; //导入方法依赖的package包/类
private static void pauseMedia(ThreadReference tr, VirtualMachine vm) throws InvalidTypeException, ClassNotLoadedException, IncompatibleThreadStateException, InvocationException {
    final ClassType audioClipClass = getClass(vm, tr, "com.sun.media.jfxmedia.AudioClip");
    final ClassType mediaManagerClass = getClass(vm, tr, "com.sun.media.jfxmedia.MediaManager");
    final InterfaceType mediaPlayerClass = getInterface(vm, tr, "com.sun.media.jfxmedia.MediaPlayer");
    final ClassType playerStateEnum = getClass(vm, tr, "com.sun.media.jfxmedia.events.PlayerStateEvent$PlayerState");
    
    if (audioClipClass != null) {
        Method stopAllClips = audioClipClass.concreteMethodByName("stopAllClips", "()V");
        audioClipClass.invokeMethod(tr, stopAllClips, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
    }
    
    if (mediaManagerClass != null && mediaPlayerClass != null && playerStateEnum != null) {
        Method getAllPlayers = mediaManagerClass.concreteMethodByName("getAllMediaPlayers", "()Ljava/util/List;");

        ObjectReference plList = (ObjectReference)mediaManagerClass.invokeMethod(tr, getAllPlayers, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);

        if (plList != null) {
            ClassType listType = (ClassType)plList.referenceType();
            Method iterator = listType.concreteMethodByName("iterator", "()Ljava/util/Iterator;");
            ObjectReference plIter = (ObjectReference)plList.invokeMethod(tr, iterator, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);

            ClassType iterType = (ClassType)plIter.referenceType();
            Method hasNext = iterType.concreteMethodByName("hasNext", "()Z");
            Method next = iterType.concreteMethodByName("next", "()Ljava/lang/Object;");


            Field playingState = playerStateEnum.fieldByName("PLAYING");

            Method getState = mediaPlayerClass.methodsByName("getState", "()Lcom/sun/media/jfxmedia/events/PlayerStateEvent$PlayerState;").get(0);
            Method pausePlayer = mediaPlayerClass.methodsByName("pause", "()V").get(0);
            boolean hasNextFlag = false;
            do {
                BooleanValue v = (BooleanValue)plIter.invokeMethod(tr, hasNext, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
                hasNextFlag = v.booleanValue();
                if (hasNextFlag) {
                    ObjectReference player = (ObjectReference)plIter.invokeMethod(tr, next, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
                    ObjectReference curState = (ObjectReference)player.invokeMethod(tr, getState, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
                    if (playingState.equals(curState)) {
                        player.invokeMethod(tr, pausePlayer, Collections.EMPTY_LIST, ObjectReference.INVOKE_SINGLE_THREADED);
                        pausedPlayers.add(player);
                    }
                }
            } while (hasNextFlag);
        }
    }
}