Java Module jdk.jshell Package jdk.jshell.execution Class Util（JDK11）

Method Detail

• forwardExecutionControl

  public static void forwardExecutionControl​(ExecutionControl ec,
                                             ObjectInput in,
                                             ObjectOutput out)

  Forward commands from the input to the specified ExecutionControl instance, then responses back on the output.

  Parameters:

  ec - the direct instance of ExecutionControl to process commands

  in - the command input

  out - the command response output

• forwardExecutionControlAndIO

  public static void forwardExecutionControlAndIO​(ExecutionControl ec,
                                                  InputStream inStream,
                                                  OutputStream outStream,
                                                  Map<String,​Consumer<OutputStream>> outputStreamMap,
                                                  Map<String,​Consumer<InputStream>> inputStreamMap)
                                           throws IOException

  Forward commands from the input to the specified ExecutionControl instance, then responses back on the output.

  Parameters:

  ec - the direct instance of ExecutionControl to process commands

  inStream - the stream from which to create the command input

  outStream - the stream that will carry any specified auxiliary channels (like System.out and System.err), and the command response output.

  outputStreamMap - a map between names of additional streams to carry and setters for the stream. Names starting with '$' are reserved for internal use.

  inputStreamMap - a map between names of additional streams to carry and setters for the stream. Names starting with '$' are reserved for internal use.

  Throws:

  IOException - if there are errors using the passed streams

• remoteInputOutput

  public static ExecutionControl remoteInputOutput​(InputStream input,
                                                   OutputStream output,
                                                   Map<String,​OutputStream> outputStreamMap,
                                                   Map<String,​InputStream> inputStreamMap,
                                                   BiFunction<ObjectInput,​ObjectOutput,​ExecutionControl> factory)
                                            throws IOException

  Creates an ExecutionControl for given packetized input and output. The given InputStream is de-packetized, and content forwarded to ObjectInput and given OutputStreams. The ObjectOutput and values read from the given InputStream are packetized and sent to the given OutputStream.

  Parameters:

  input - the packetized input stream

  output - the packetized output stream

  outputStreamMap - a map between stream names and the output streams to forward. Names starting with '$' are reserved for internal use.

  inputStreamMap - a map between stream names and the input streams to forward. Names starting with '$' are reserved for internal use.

  factory - to create the ExecutionControl from ObjectInput and ObjectOutput.

  Returns:

  the created ExecutionControl

  Throws:

  IOException - if setting up the streams raised an exception

• detectJdiExitEvent

  public static void detectJdiExitEvent​(VirtualMachine vm,
                                        Consumer<String> unbiddenExitHandler)

  Monitor the JDI event stream for VMDeathEvent and VMDisconnectEvent. If encountered, invokes unbiddenExitHandler.

  Parameters:

  vm - the virtual machine to check

  unbiddenExitHandler - the handler, which will accept the exit information