Class RemoteExecutionControl

All Implemented Interfaces:
AutoCloseable, ExecutionControl 
public class RemoteExecutionControl
extends DirectExecutionControl
implements ExecutionControl

The remote agent runs in the execution process (separate from the main JShell process). This agent loads code over a socket from the main JShell process, executes the code, and other misc, Specialization of DirectExecutionControl which adds stop support controlled by an external process. Designed to work with JdiDefaultExecutionControl.

Since:
9

Nested Classes

Nested classes/interfaces declared in interface jdk.jshell.spi.ExecutionControl

ExecutionControl.ClassBytecodes, ExecutionControl.ClassInstallException, ExecutionControl.EngineTerminationException, ExecutionControl.ExecutionControlException, ExecutionControl.InternalException, ExecutionControl.NotImplementedException, ExecutionControl.ResolutionException, ExecutionControl.RunException, ExecutionControl.StoppedException, ExecutionControl.UserException

Constructors

Constructor Description
RemoteExecutionControl()

Create an instance using the default class loading.
RemoteExecutionControl​(LoaderDelegate loaderDelegate)

Creates an instance, delegating loader operations to the specified delegate.

Methods

Modifier and Type Method Description
static void main​(String[] args)

Launch the agent, connecting to the JShell-core over the socket specified in the command-line argument.
void redefine​(ExecutionControl.ClassBytecodes[] cbcs)

Redefine processing on the remote end is only to register the redefined classes

Methods declared in class jdk.jshell.execution.DirectExecutionControl

classesRedefined, clientCodeEnter, clientCodeLeave, findClass, invoke, stop, throwConvertedInvocationException, throwConvertedOtherException, valueString

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods declared in interface jdk.jshell.spi.ExecutionControl

addToClasspath, close, extensionCommand, invoke, load, stop, varValue

Constructors

RemoteExecutionControl

public RemoteExecutionControl(LoaderDelegate loaderDelegate)

Creates an instance, delegating loader operations to the specified delegate.

Parameters:
loaderDelegate - the delegate to handle loading classes

RemoteExecutionControl

public RemoteExecutionControl()

Create an instance using the default class loading.

Methods

main

public static void main(String[] args)
                 throws Exception

Launch the agent, connecting to the JShell-core over the socket specified in the command-line argument.

Parameters:
args - standard command-line arguments, expectation is the socket number is the only argument
Throws:
Exception - any unexpected exception

redefine

public void redefine(ExecutionControl.ClassBytecodes[] cbcs)
              throws ExecutionControl.ClassInstallException,
                     ExecutionControl.NotImplementedException,
                     ExecutionControl.EngineTerminationException

Redefine processing on the remote end is only to register the redefined classes

Specified by:
redefine in interface ExecutionControl
Parameters:
cbcs - the class name and bytecodes to redefine
Throws:
ExecutionControl.ClassInstallException - exception occurred redefining the classes, some or all were not redefined
ExecutionControl.NotImplementedException - if not implemented
ExecutionControl.EngineTerminationException - the execution engine has terminated

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/11/docs/api/jdk.jshell/jdk/jshell/execution/RemoteExecutionControl.html