Module openj9.dtfj

Package com.ibm.j9ddr.vm29.j9

Class ConstantPoolHelpers

java.lang.Object

com.ibm.j9ddr.vm29.j9.ConstantPoolHelpers

public class ConstantPoolHelpers
extends Object

Method Summary

Modifier and Type	Method	Description
static UDATAPointer	J9_AFTER_CLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer	J9_CLASS_FROM_CP(com.ibm.j9ddr.vm29.pointer.generated.J9ConstantPoolPointer cp)	use J9ConstantPoolPointer.ramClass() instead?
static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer	J9_CLASS_FROM_METHOD(com.ibm.j9ddr.vm29.pointer.generated.J9MethodPointer method)
static com.ibm.j9ddr.vm29.pointer.generated.J9ConstantPoolPointer	J9_CP_FROM_CLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)	use J9ClassPointer.ramConstantPool() instead?
static com.ibm.j9ddr.vm29.pointer.generated.J9ConstantPoolPointer	J9_CP_FROM_METHOD(com.ibm.j9ddr.vm29.pointer.generated.J9MethodPointer method)
static long	J9_CP_TYPE(U32Pointer cpShapeDescription, int index)	This method is Java implementation of the define J9_CP_TYPE in j9cp.h in VM.
static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer	J9_CURRENT_CLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
static boolean	J9_IS_CLASS_OBSOLETE(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
static com.ibm.j9ddr.vm29.pointer.generated.J9ROMConstantPoolItemPointer	J9_ROM_CP_FROM_CP(com.ibm.j9ddr.vm29.pointer.generated.J9ConstantPoolPointer cp)	use J9ConstantPoolPointer.romConstantPool() instead?
static com.ibm.j9ddr.vm29.pointer.generated.J9ROMConstantPoolItemPointer	J9_ROM_CP_FROM_ROM_CLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ROMClassPointer romClass)	use J9ROMClassPointer.romConstantPool() instead?
static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer	J9VM_J9CLASS_FROM_HEAPCLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer clazzObject)
static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer	J9VM_J9CLASS_TO_HEAPCLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)

Methods declared in class java.lang.Object

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

Method Detail

J9_AFTER_CLASS

public static UDATAPointer J9_AFTER_CLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)

J9_CP_FROM_METHOD

public static com.ibm.j9ddr.vm29.pointer.generated.J9ConstantPoolPointer J9_CP_FROM_METHOD(com.ibm.j9ddr.vm29.pointer.generated.J9MethodPointer method)
                                                                                    throws CorruptDataException

Throws:

CorruptDataException

J9_CP_FROM_CLASS

public static com.ibm.j9ddr.vm29.pointer.generated.J9ConstantPoolPointer J9_CP_FROM_CLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
                                                                                   throws CorruptDataException

use J9ClassPointer.ramConstantPool() instead?

Throws:

CorruptDataException

J9_CLASS_FROM_CP

public static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer J9_CLASS_FROM_CP(com.ibm.j9ddr.vm29.pointer.generated.J9ConstantPoolPointer cp)
                                                                            throws CorruptDataException

use J9ConstantPoolPointer.ramClass() instead?

Throws:

CorruptDataException

J9_CLASS_FROM_METHOD

public static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer J9_CLASS_FROM_METHOD(com.ibm.j9ddr.vm29.pointer.generated.J9MethodPointer method)
                                                                                throws CorruptDataException

Throws:

CorruptDataException

J9_ROM_CP_FROM_CP

public static com.ibm.j9ddr.vm29.pointer.generated.J9ROMConstantPoolItemPointer J9_ROM_CP_FROM_CP(com.ibm.j9ddr.vm29.pointer.generated.J9ConstantPoolPointer cp)
                                                                                           throws CorruptDataException

use J9ConstantPoolPointer.romConstantPool() instead?

Throws:

CorruptDataException

J9_ROM_CP_FROM_ROM_CLASS

public static com.ibm.j9ddr.vm29.pointer.generated.J9ROMConstantPoolItemPointer J9_ROM_CP_FROM_ROM_CLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ROMClassPointer romClass)
                                                                                                  throws CorruptDataException

use J9ROMClassPointer.romConstantPool() instead?

Throws:

CorruptDataException

J9_IS_CLASS_OBSOLETE

public static boolean J9_IS_CLASS_OBSOLETE(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
                                    throws CorruptDataException

Throws:

CorruptDataException

J9_CURRENT_CLASS

public static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer J9_CURRENT_CLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
                                                                            throws CorruptDataException

Throws:

CorruptDataException

J9VM_J9CLASS_FROM_HEAPCLASS

public static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer J9VM_J9CLASS_FROM_HEAPCLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer clazzObject)
                                                                                       throws CorruptDataException

Throws:

CorruptDataException

J9VM_J9CLASS_TO_HEAPCLASS

public static com.ibm.j9ddr.vm29.pointer.generated.J9ObjectPointer J9VM_J9CLASS_TO_HEAPCLASS(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
                                                                                      throws CorruptDataException

Throws:

CorruptDataException

J9_CP_TYPE

public static long J9_CP_TYPE(U32Pointer cpShapeDescription,
                              int index)
                       throws CorruptDataException

This method is Java implementation of the define J9_CP_TYPE in j9cp.h in VM. It basically find out the type of the constant pool entry at the given index. #define J9_CP_TYPE(cpShapeDescription, index) \ (((cpShapeDescription)[(index) / J9_CP_DESCRIPTIONS_PER_U32] >> \ (((index) % J9_CP_DESCRIPTIONS_PER_U32) * J9_CP_BITS_PER_DESCRIPTION)) & J9_CP_DESCRIPTION_MASK)

Parameters:

cpShapeDescription - Description of the constantPool

index - Type index

Returns:

Type

Throws:

CorruptDataException