Class J9ClassHelper
java.lang.Object
com.ibm.j9ddr.vm29.pointer.helper.J9ClassHelper
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic boolean
static J9ObjectFieldOffset
checkFieldOffsetCache
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, String fieldName, String signature) static UDATA
classDepth
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) static UDATA
classDepthAndFlags
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) static UDATA
classFlags
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer
currentClass
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) static U32
extendedClassFlags
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) static String
formatFullInteractive
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static String
getArrayName
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static Iterator
<J9ObjectFieldOffset> getFieldOffsets
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static int
getJavaLangClassModifiers
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) Returns class modifiers as returned from java.lang.Class.getModifiers()static String
getJavaName
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static com.ibm.j9ddr.vm29.pointer.generated.J9MethodPointer
getMethodFromPCAndClass
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer localClass, U8Pointer pc) static String
getName
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static int
getRawModifiers
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) Returns "raw" modifiersstatic String
getSignature
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static boolean
hasValidEyeCatcher
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static boolean
isAnonymousClass
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static boolean
isArrayClass
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static boolean
isObsolete
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) static boolean
isRefOrValSignature
(char firstChar) Queries if a given char is the first character of a reference or value type signature.static boolean
isSameOrSuperClassOf
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer superClazz, com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static boolean
isSwappedOut
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static UDATAPointer
oldVTable
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static void
setFieldOffsetCache
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, J9ObjectFieldOffset offset, String fieldName, String signature) static UDATA
size
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer vm) static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer
superclass
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) static UDATAPointer
vTable
(com.ibm.j9ddr.vm29.pointer.generated.J9VTableHeaderPointer vTableHeader) static com.ibm.j9ddr.vm29.pointer.generated.J9VTableHeaderPointer
vTableHeader
(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
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Constructor Details
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J9ClassHelper
public J9ClassHelper()
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Method Details
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isArrayClass
public static boolean isArrayClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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getName
public static String getName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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getSignature
public static String getSignature(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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getArrayName
public static String getArrayName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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getJavaName
public static String getJavaName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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formatFullInteractive
public static String formatFullInteractive(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) -
getFieldOffsets
public static Iterator<J9ObjectFieldOffset> getFieldOffsets(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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superclass
public static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer superclass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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checkFieldOffsetCache
public static J9ObjectFieldOffset checkFieldOffsetCache(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, String fieldName, String signature) -
setFieldOffsetCache
public static void setFieldOffsetCache(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, J9ObjectFieldOffset offset, String fieldName, String signature) -
isSameOrSuperClassOf
public static boolean isSameOrSuperClassOf(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer superClazz, com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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vTableHeader
public static com.ibm.j9ddr.vm29.pointer.generated.J9VTableHeaderPointer vTableHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) -
vTable
public static UDATAPointer vTable(com.ibm.j9ddr.vm29.pointer.generated.J9VTableHeaderPointer vTableHeader) -
oldVTable
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size
public static UDATA size(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer vm) throws CorruptDataException - Throws:
CorruptDataException
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getJavaLangClassModifiers
public static int getJavaLangClassModifiers(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException Returns class modifiers as returned from java.lang.Class.getModifiers()- Parameters:
j9class
- Class to get modifiers for- Returns:
- Modifier flags, as returned from java.lang.Class.getModifiers()
- Throws:
CorruptDataException
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getRawModifiers
public static int getRawModifiers(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException Returns "raw" modifiers- Parameters:
j9class
-- Returns:
- Throws:
CorruptDataException
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classDepthAndFlags
public static UDATA classDepthAndFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException - Throws:
CorruptDataException
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classDepth
public static UDATA classDepth(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException - Throws:
CorruptDataException
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extendedClassFlags
public static U32 extendedClassFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException - Throws:
CorruptDataException
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classFlags
public static UDATA classFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException - Throws:
CorruptDataException
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isObsolete
public static boolean isObsolete(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException - Throws:
CorruptDataException
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currentClass
public static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer currentClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException - Throws:
CorruptDataException
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getMethodFromPCAndClass
public static com.ibm.j9ddr.vm29.pointer.generated.J9MethodPointer getMethodFromPCAndClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer localClass, U8Pointer pc) throws CorruptDataException - Throws:
CorruptDataException
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isSwappedOut
public static boolean isSwappedOut(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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hasValidEyeCatcher
public static boolean hasValidEyeCatcher(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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areExtensionsEnabled
- Throws:
CorruptDataException
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isAnonymousClass
public static boolean isAnonymousClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException - Throws:
CorruptDataException
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isRefOrValSignature
public static boolean isRefOrValSignature(char firstChar) Queries if a given char is the first character of a reference or value type signature. Equivalent to J9's IS_REF_OR_VAL_SIGNATURE macro.- Parameters:
firstChar
- the first character of the signature being checked- Returns:
- true if the character indicates the beginning of a reference or value signature, false otherwise
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