Module openj9.dtfj

Package com.ibm.j9ddr.vm29.j9.walkers

Class HeapWalker

java.lang.Object

com.ibm.j9ddr.vm29.j9.walkers.HeapWalker

All Implemented Interfaces:

IEventListener

public class HeapWalker
extends Object
implements IEventListener

Constructor Summary

Constructors

Constructor	Description
HeapWalker(com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer vm, GCHeapRegionDescriptor hrd, HeapWalkerEvents sink)

Method Summary

Modifier and Type	Method	Description
void	corruptData(String message, CorruptDataException e, boolean fatal)	Raised when corrupt data is encountered.
static SortedSet<ObjectMonitor>	getFlatLockedMonitors()	Returns a lazily-initialized list of flat-locked object monitors.
boolean	hasNext()
void	walk()

Methods declared in class java.lang.Object

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

Constructor Details

HeapWalker

public HeapWalker(com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer vm,
 GCHeapRegionDescriptor hrd,
 HeapWalkerEvents sink)
           throws CorruptDataException

Throws:

CorruptDataException

Method Details

hasNext

public boolean hasNext()

walk

public void walk()

getFlatLockedMonitors

public static SortedSet<ObjectMonitor> getFlatLockedMonitors()
                                                      throws CorruptDataException

Returns a lazily-initialized list of flat-locked object monitors. Will run initialization if it hasn't already been performed.

Returns:

List of flat-locked object monitors

Throws:

CorruptDataException

corruptData

public void corruptData(String message,
 CorruptDataException e,
 boolean fatal)

Description copied from interface: IEventListener

Raised when corrupt data is encountered.

Specified by:

corruptData in interface IEventListener

Parameters:

message - text message related to the corrupt data exception

e - the corrupt data exception