- java.lang.Object
- jdk.jshell.execution.StreamingExecutionControl
- jdk.jshell.execution.JdiExecutionControl
- All Implemented Interfaces:
AutoCloseable
,ExecutionControl
- Direct Known Subclasses:
JdiDefaultExecutionControl
public abstract class JdiExecutionControl extends StreamingExecutionControl implements ExecutionControl
Abstract JDI implementation ofExecutionControl
.- Since:
- 9
Nested Class Summary
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
Constructor Summary
Constructors Modifier Constructor Description protected
JdiExecutionControl(ObjectOutput out, ObjectInput in)
Create an instance.
Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description void
redefine(ExecutionControl.ClassBytecodes[] cbcs)
Redefine the specified classes.protected ReferenceType
referenceType(VirtualMachine vm, String name)
Returns the JDIReferenceType
corresponding to the specified class name.protected abstract VirtualMachine
vm()
Returns the JDIVirtualMachine
instance.Methods declared in class jdk.jshell.execution.StreamingExecutionControl
close
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
Constructor Detail
JdiExecutionControl
protected JdiExecutionControl(ObjectOutput out, ObjectInput in)
Create an instance.- Parameters:
out
- the output from the remote agentin
- the input to the remote agent
Method Detail
vm
protected abstract VirtualMachine vm() throws ExecutionControl.EngineTerminationException
Returns the JDIVirtualMachine
instance.- Returns:
- the virtual machine
- Throws:
ExecutionControl.EngineTerminationException
- if the VM is dead/disconnected
redefine
public void redefine(ExecutionControl.ClassBytecodes[] cbcs) throws ExecutionControl.ClassInstallException, ExecutionControl.EngineTerminationException
Redefine the specified classes. Where 'redefine' is, as in JDI and JVMTI, an in-place replacement of the classes (preserving class identity) -- that is, existing references to the class do not need to be recompiled. This implementation uses JDIVirtualMachine.redefineClasses(java.util.Map)
. It will be unsuccessful if the signature of the class has changed (see the JDI spec). The JShell-core is designed to adapt to unsuccessful redefine.- Specified by:
redefine
in interfaceExecutionControl
- Parameters:
cbcs
- the class name and bytecodes to redefine- Throws:
ExecutionControl.ClassInstallException
- exception occurred redefining the classes, some or all were not redefinedExecutionControl.EngineTerminationException
- the execution engine has terminated
referenceType
protected ReferenceType referenceType(VirtualMachine vm, String name)
Returns the JDIReferenceType
corresponding to the specified class name.- Parameters:
vm
- the current JDIVirtualMachine
as returned byvm()
name
- the class name to look-up- Returns:
- the corresponding
ReferenceType