Class JdiInitiator

java.lang.Object

jdk.jshell.execution.JdiInitiator

public class JdiInitiator extends Object

Sets up a JDI connection, providing the resulting JDI VirtualMachine and the Process the remote agent is running in.

Since:: 9

Nested Class Summary

Modifier and Type	Class	Description
`protected static interface`	`JdiInitiator.ProcessStarted`	Callback that should invoked when the remote process is invoked.

Constructor Summary

Constructor	Description
`JdiInitiator(int port, List<String> remoteVMOptions, String remoteAgent, boolean isLaunch, String host, int timeout, Map<String,String> customConnectorArgs)`	Start the remote agent and establish a JDI connection to it.

Method Summary

Modifier and Type	Method	Description
`Process`	`process()`	Returns the launched process.
`protected void`	`runListenProcess(String jdiAddress, int jshellControlPort, List<String> remoteVMOptions, JdiInitiator.ProcessStarted setupVM)`	Create a process that will attach to the given address.
`VirtualMachine`	`vm()`	Returns the resulting `VirtualMachine` instance.

Methods declared in class Object

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

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

JdiInitiator

public JdiInitiator(int port, List<String> remoteVMOptions, String remoteAgent, boolean isLaunch, String host, int timeout, Map<String,String> customConnectorArgs)

Start the remote agent and establish a JDI connection to it.

Parameters:: port - the socket port for (non-JDI) commands; remoteVMOptions - any user requested VM command-line options; remoteAgent - full class name of remote agent to launch; isLaunch - does JDI do the launch? That is, LaunchingConnector, otherwise we start explicitly and use ListeningConnector; host - explicit hostname to use, if null use discovered hostname, applies to listening only (!isLaunch); timeout - the start-up time-out in milliseconds. If zero or negative, will not wait thus will timeout immediately if not already started.; customConnectorArgs - custom arguments passed to the connector. These are JDI com.sun.jdi.connect.Connector arguments. The vmexec argument is not supported.

Method Details

vm

public VirtualMachine vm()

Returns the resulting VirtualMachine instance.

Returns:: the virtual machine

process

public Process process()

Returns the launched process.

Returns:: the remote agent process

runListenProcess

protected void runListenProcess(String jdiAddress, int jshellControlPort, List<String> remoteVMOptions, JdiInitiator.ProcessStarted setupVM)

Create a process that will attach to the given address.

Parameters:: jdiAddress - address on which a JDI server is waiting for a connection; jshellControlPort - the port which the remote agent should connect to; remoteVMOptions - VM options for the remote agent VM; setupVM - a callback that should be called then the remote agent process is created. The callback will setup the JDI's VirtualMachine.
Since:: 22

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