Examples of com.sun.jdi.VirtualMachine

com.sun.jdi.VirtualMachine
A virtual machine targeted for debugging. More precisely, a {@link Mirror mirror} representing thecomposite state of the target VM. All other mirrors are associated with an instance of this interface. Access to all other mirrors is achieved directly or indirectly through an instance of this interface. Access to global VM properties and control of VM execution are supported directly by this interface.
Instances of this interface are created by instances of {@link com.sun.jdi.connect.Connector}. For example, an {@link com.sun.jdi.connect.AttachingConnector AttachingConnector}attaches to a target VM and returns its virtual machine mirror. A Connector will typically create a VirtualMachine by invoking the VirtualMachineManager's {@link com.sun.jdi.VirtualMachineManager#createVirtualMachine(Connection)}createVirtualMachine(Connection) method.
Note that a target VM launched by a launching connector is not guaranteed to be stable until after the {@link com.sun.jdi.event.VMStartEvent} has beenreceived.
Any method on VirtualMachine which takes VirtualMachine as an parameter may throw {@link com.sun.jdi.VMDisconnectedException} if the target VM isdisconnected and the {@link com.sun.jdi.event.VMDisconnectEvent} has been or isavailable to be read from the {@link com.sun.jdi.event.EventQueue}.
Any method on VirtualMachine which takes VirtualMachine as an parameter may throw {@link com.sun.jdi.VMOutOfMemoryException} if the target VM has run out of memory. @author Robert Field @author Gordon Hirsch @author James McIlree @since 1.3

  
  public static String setFieldValue(String name, String exp) {
    ThreadReference threadRef = checkAndGetCurrentThread();
    SuspendThreadStack threadStack = SuspendThreadStack.getInstance();
    Debugger debugger = Debugger.getInstance();
    VirtualMachine vm = debugger.getVm();
    
    try {
      
      ParseResult result = AstTreeFactory.getExpressionAst(exp);
      if (result.hasError()) {
        return result.getErrorMsg();
      }
      Object obj = evalTreeNode(result.getTree());
      Value value = null;
      if (obj instanceof Integer) {
        value = vm.mirrorOf(((Integer)obj).intValue());
      } else if (obj instanceof Boolean) {
        value = vm.mirrorOf(((Boolean)obj).booleanValue());
      } else if (obj instanceof String) {
        value = vm.mirrorOf((String)obj);
      } else {
        value = (Value)obj;
      }
      
      StackFrame stackFrame = threadRef.frame(threadStack.getCurFrame());

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    if (var instanceof ObjectReference || var instanceof ReferenceType) {
      return invoke(var,methodName,arguments);
    }
    if (var instanceof String) {
      Debugger debugger = Debugger.getInstance();
      VirtualMachine vm = debugger.getVm();
      return invoke(vm.mirrorOf((String)var),methodName,arguments);
    }
    return null;
  }

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  private static Value getMirrorValue(Object value) {
    if (value == null) return null;
    if (value instanceof Value) return (Value)value;
    
    Debugger debugger = Debugger.getInstance();
    VirtualMachine vm = debugger.getVm();
    if (value instanceof Integer) {
      return vm.mirrorOf(((Integer)value).intValue());
    } else if (value instanceof Boolean) {
      return vm.mirrorOf(((Boolean)value).booleanValue());
    } else if (value instanceof Float) {
      return vm.mirrorOf(((Float)value).floatValue());
    } else if (value instanceof Byte) {
      return vm.mirrorOf(((Byte)value).byteValue());
    } else if (value instanceof Character) {
      return vm.mirrorOf(((Character)value).charValue());
    } else if (value instanceof Double) {
      return vm.mirrorOf(((Double)value).doubleValue());
    } else if (value instanceof Long) {
      return vm.mirrorOf(((Long)value).longValue());
    } else if (value instanceof Short) {
      return vm.mirrorOf(((Short)value).shortValue());
    } else if (value instanceof String) {
      return vm.mirrorOf(((String)value));
    }
    return null;
  }

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            try {
                secondsToWait = Integer.parseInt(System.getProperty(CONNECTION_WAIT_PROPERTY, "0"));
            } catch (NumberFormatException nfe) {
                ;
            }
            VirtualMachine vm = ClassLoaderPatcher.hotswapClassLoader(
                clp,
                starter.getTransport(),
                starter.getAddress(),
                secondsToWait);
            if (vm == null) {
                process.destroy();
            } else {
                vm.resume();
                vm.dispose();
            }
        }


        // attach VM other streams to this streams
        redirectOtherStreams();

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  private static JdeLogger log = JdeLogger.getLogger("HotSwapServer");


  @SuppressWarnings("unchecked")
  public static void replace(Debugger debugger, File classFile, String className) {
    
    VirtualMachine vm = debugger.getVm();
    if (vm == null) return;
    if (!vm.canRedefineClasses()) return;
    
    byte[] classBytes = loadClassFile(classFile);
    if (classBytes == null ) return;
    
    List classes = vm.classesByName(className);


    if (classes == null || classes.size() == 0)
      return;


    for (int i = 0; i < classes.size(); i++) {
      ReferenceType refType = (ReferenceType) classes.get(i);
      HashMap map = new HashMap();
      map.put(refType, classBytes);
      vm.redefineClasses(map);
    }
  }

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                        }
                        if (ex instanceof IOException) {
                            throw (IOException)ex;
                        }


                        VirtualMachine vm= runnable.getVirtualMachine();
                        if (vm != null) {
                            DroolsDebugModel.newDebugTarget(launch, vm, renderDebugTarget(config.getClassToLaunch(), port), process, true, false, config.isResumeOnStartup());
                            subMonitor.worked(1);
                            subMonitor.done();
                        }

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            return;
        }
        try {
            setSuspended( false );
            resumeThreads();
            VirtualMachine vm = getVM();
            if ( vm != null ) {
                vm.resume();
            }
            if ( fireNotification ) {
                fireResumeEvent( DebugEvent.CLIENT_REQUEST );
            }
        } catch ( VMDisconnectedException e ) {

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            notSupported( JDIDebugModelMessages.JDIDebugTarget_does_not_support_disconnect );
        }


        try {
            disposeThreadHandler();
            VirtualMachine vm = getVM();
            if ( vm != null ) {
                vm.dispose();
            }
        } catch ( VMDisconnectedException e ) {
            // if the VM disconnects while disconnecting, perform
            // normal disconnect handling
            disconnected();

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            notSupported( JDIDebugModelMessages.JDIDebugTarget_does_not_support_termination );
        }
        try {
            setTerminating( true );
            disposeThreadHandler();
            VirtualMachine vm = getVM();
            if ( vm != null ) {
                vm.exit( 1 );
            }
            IProcess process = getProcess();
            if ( process != null ) {
                process.terminate();
            }

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    }


    protected void initializeState() {


        List threads = null;
        VirtualMachine vm = getVM();
        if ( vm != null ) {
            try {
                threads = vm.allThreads();
            } catch ( RuntimeException e ) {
                internalError( e );
            }
            if ( threads != null ) {
                Iterator initialThreads = threads.iterator();

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