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sun.jvm.hotspot.runtime

public Class JNIHandleBlock

Class Inheritance

extends VMObject

java.lang.Object
sun.jvm.hotspot.runtime.VMObject
sun.jvm.hotspot.runtime.JNIHandleBlock

Imports

java.util.*, sun.jvm.hotspot.debugger.*, sun.jvm.hotspot.runtime.*, sun.jvm.hotspot.types.*, sun.jvm.hotspot.utilities.*, .Observable, .Observer

Field Summary

Modifier and Type	Field and Description
private static int	blockSizeInOops
private static Field	handlesField
private static AddressField	nextField
private static CIntegerField	topField

Inherited from sun.jvm.hotspot.runtime.VMObject:: addr

Constructor Summary

Access	Constructor and Description
public	JNIHandleBlock(Address addr)

Method Summary

Modifier and Type	Method and Description
public JNIHandleBlock	blockContainingHandle(Address jniHandle) Debugging routine only.
public OopHandle	getOopHandle(int x)
private Address	getOopHandleAddress(int x) Only returns addresses of valid OopHandles
public int	indexOfHandle(Address jniHandle) Debugging routine: returns the index (0..top() - 1) of the handle in this block, or -1 if the handle was not contained in this block.
private static synchronized void	initialize(TypeDataBase db)
public JNIHandleBlock	next()
public void	oopsDo(AddressVisitor visitor)
public int	top()
public String	toString() Overrides sun.jvm.hotspot.runtime.VMObject.toString. Returns a string representation of the object.

Inherited from sun.jvm.hotspot.runtime.VMObject:: equals getAddress hashCode

Field Detail

blockSizeInOops	back to summary
private static int blockSizeInOops

handlesField	back to summary
private static Field handlesField

nextField	back to summary
private static AddressField nextField

topField	back to summary
private static CIntegerField topField

Constructor Detail

JNIHandleBlock	back to summary
public JNIHandleBlock(Address addr)

Method Detail

blockContainingHandle	back to summary
public JNIHandleBlock blockContainingHandle(Address jniHandle) Debugging routine only. Returns non-null JNIHandleBlock containing the JNI handle or null if this handle block and its successors did not contain it.

getOopHandle	back to summary
public OopHandle getOopHandle(int x)

getOopHandleAddress	back to summary
private Address getOopHandleAddress(int x) Only returns addresses of valid OopHandles

indexOfHandle	back to summary
public int indexOfHandle(Address jniHandle) Debugging routine: returns the index (0..top() - 1) of the handle in this block, or -1 if the handle was not contained in this block. Does not search successor blocks.

initialize	back to summary
private static synchronized void initialize(TypeDataBase db)

next	back to summary
public JNIHandleBlock next()

oopsDo	back to summary
public void oopsDo(AddressVisitor visitor)

top	back to summary
public int top()

toString back to summary

public String toString()

Overrides sun.jvm.hotspot.runtime.VMObject.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.