- java.lang.Object
-
- com.ibm.j9ddr.vm29.pointer.helper.J9ClassHelper
-
- Direct Known Subclasses:
J9ArrayClassHelper
public class J9ClassHelper extends Object
-
-
Constructor Summary
Constructors Constructor Description J9ClassHelper()
-
Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static booleanareExtensionsEnabled()static J9ObjectFieldOffsetcheckFieldOffsetCache(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, String fieldName, String signature)static UDATAclassDepth(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class)static UDATAclassDepthAndFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class)static UDATAclassFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class)static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointercurrentClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class)static U32extendedClassFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class)static StringformatFullInteractive(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static StringgetArrayName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static Iterator<J9ObjectFieldOffset>getFieldOffsets(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static intgetJavaLangClassModifiers(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class)Returns class modifiers as returned from java.lang.Class.getModifiers()static StringgetJavaName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static com.ibm.j9ddr.vm29.pointer.generated.J9MethodPointergetMethodFromPCAndClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer localClass, U8Pointer pc)static StringgetName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static intgetRawModifiers(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class)Returns "raw" modifiersstatic StringgetSignature(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static booleanhasValidEyeCatcher(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static booleanisAnonymousClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static booleanisArrayClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static booleanisClassSignature(char firstChar)Queries if a given char is the first character of a reference or value type signature.static booleanisObsolete(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class)static booleanisSameOrSuperClassOf(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer superClazz, com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static booleanisSwappedOut(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static UDATAPointeroldVTable(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static voidsetFieldOffsetCache(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, J9ObjectFieldOffset offset, String fieldName, String signature)static UDATAsize(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz, com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer vm)static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointersuperclass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)static UDATAPointervTable(com.ibm.j9ddr.vm29.pointer.generated.J9VTableHeaderPointer vTableHeader)static com.ibm.j9ddr.vm29.pointer.generated.J9VTableHeaderPointervTableHeader(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
-
-
-
Method Detail
-
isArrayClass
public static boolean isArrayClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException- Throws:
CorruptDataException
-
getName
public static String getName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException
- Throws:
CorruptDataException
-
getSignature
public static String getSignature(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException
- Throws:
CorruptDataException
-
getArrayName
public static String getArrayName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException
- Throws:
CorruptDataException
-
getJavaName
public static String getJavaName(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException
- Throws:
CorruptDataException
-
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
-
superclass
public static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer superclass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException- Throws:
CorruptDataException
-
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
-
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
public static UDATAPointer oldVTable(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz)
-
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
-
getJavaLangClassModifiers
public static int getJavaLangClassModifiers(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataExceptionReturns 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
-
getRawModifiers
public static int getRawModifiers(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataExceptionReturns "raw" modifiers- Parameters:
j9class-- Returns:
- Throws:
CorruptDataException
-
classDepthAndFlags
public static UDATA classDepthAndFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException
- Throws:
CorruptDataException
-
classDepth
public static UDATA classDepth(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException
- Throws:
CorruptDataException
-
extendedClassFlags
public static U32 extendedClassFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException
- Throws:
CorruptDataException
-
classFlags
public static UDATA classFlags(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException
- Throws:
CorruptDataException
-
isObsolete
public static boolean isObsolete(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException- Throws:
CorruptDataException
-
currentClass
public static com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer currentClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer j9class) throws CorruptDataException- Throws:
CorruptDataException
-
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
-
isSwappedOut
public static boolean isSwappedOut(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException- Throws:
CorruptDataException
-
hasValidEyeCatcher
public static boolean hasValidEyeCatcher(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException- Throws:
CorruptDataException
-
areExtensionsEnabled
public static boolean areExtensionsEnabled() throws CorruptDataException- Throws:
CorruptDataException
-
isAnonymousClass
public static boolean isAnonymousClass(com.ibm.j9ddr.vm29.pointer.generated.J9ClassPointer clazz) throws CorruptDataException- Throws:
CorruptDataException
-
isClassSignature
public static boolean isClassSignature(char firstChar)
Queries if a given char is the first character of a reference or value type signature. Equivalent to J9's IS_CLASS_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
-
-