A C D E F G H I J K L M N O P R S T U V W X

A

add(GraphLayout) - Method in class org.openjdk.jol.info.GraphLayout

Add another layout data to the current one.

add(T) - Method in class org.openjdk.jol.util.Multiset

add(T, long) - Method in class org.openjdk.jol.util.Multiset

addClasspathEntries(Collection<String>) - Static method in class org.openjdk.jol.util.ClassUtils

Add these new classpath entries to resolve against.

addField(FieldData) - Method in class org.openjdk.jol.info.ClassData

Add the field data.

address() - Method in class org.openjdk.jol.info.GraphPathRecord

addresses() - Method in class org.openjdk.jol.info.GraphLayout

Answer the set of addresses for the discovered objects

addressOf(Object) - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the machine address of the given object.

addSuperClass(String) - Method in class org.openjdk.jol.info.ClassData

Add the super-class into the hierarchy.

addSuperClassData(Class) - Method in class org.openjdk.jol.info.ClassData

Add the super-class data of the class.

addVisitor(GraphVisitor) - Method in class org.openjdk.jol.info.GraphWalker

align(int, int) - Static method in class org.openjdk.jol.util.MathUtil

align(long, int) - Static method in class org.openjdk.jol.util.MathUtil

arrayBaseOffset(String) - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the array base offset for an array of a given component type.

arrayClass() - Method in class org.openjdk.jol.info.ClassData

Answer the array class for this class data.

arrayComponentType() - Method in class org.openjdk.jol.info.ClassData

Answer the array component class for this class data.

ArrayGraphPathRecord - Class in org.openjdk.jol.info

Object path in object graph.

arrayHeaderSize() - Method in class org.openjdk.jol.datamodel.CurrentDataModel

arrayHeaderSize() - Method in interface org.openjdk.jol.datamodel.DataModel

Return the array header size.

arrayHeaderSize() - Method in class org.openjdk.jol.datamodel.X86_32_DataModel

arrayHeaderSize() - Method in class org.openjdk.jol.datamodel.X86_64_COOPS_DataModel

arrayHeaderSize() - Method in class org.openjdk.jol.datamodel.X86_64_DataModel

arrayHeaderSize() - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the array header size.

arrayIndexScale(String) - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the array index scale for an array of a given component type.

arrayLength() - Method in class org.openjdk.jol.info.ClassData

Answer the array length for this class data.

C

ClassData - Class in org.openjdk.jol.info

Holds the class data, without the layout information.

ClassData(String) - Constructor for class org.openjdk.jol.info.ClassData

Constructs the empty ClassData, suited for regular class.

ClassData(String, String, int) - Constructor for class org.openjdk.jol.info.ClassData

Constructs the empty ClassData, suited for arrays.

classHierarchy() - Method in class org.openjdk.jol.info.ClassData

Get the class names in the hierarchy, starting from the superclasses down to subclasses

ClassLayout - Class in org.openjdk.jol.info

Handles the class data *with* the layout information.

ClassLayout(ClassData, SortedSet<FieldLayout>, int, long, boolean) - Constructor for class org.openjdk.jol.info.ClassLayout

Builds the class layout.

ClassUtils - Class in org.openjdk.jol.util

ClassUtils() - Constructor for class org.openjdk.jol.util.ClassUtils

compareTo(FieldLayout) - Method in class org.openjdk.jol.info.FieldLayout

contendedGroup() - Method in class org.openjdk.jol.info.FieldData

Get contentded group of the field.

contendedGroup(AnnotatedElement) - Static method in class org.openjdk.jol.vm.ContendedSupport

ContendedSupport - Class in org.openjdk.jol.vm

ContendedSupport() - Constructor for class org.openjdk.jol.vm.ContendedSupport

count(T) - Method in class org.openjdk.jol.util.Multiset

create(String, String, String) - Static method in class org.openjdk.jol.info.FieldData

Creates the synthetic field data.

current() - Static method in class org.openjdk.jol.vm.VM

CurrentDataModel - Class in org.openjdk.jol.datamodel

Current data model as detected by JVM.

CurrentDataModel() - Constructor for class org.openjdk.jol.datamodel.CurrentDataModel

CurrentLayouter - Class in org.openjdk.jol.layouters

The layouter getting the actual VM layout.

CurrentLayouter() - Constructor for class org.openjdk.jol.layouters.CurrentLayouter

D

DataModel - Interface in org.openjdk.jol.datamodel

Describes the data model, notably, the basic types sizes.

depth() - Method in class org.openjdk.jol.info.GraphPathRecord

details() - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the informational details about the current VM mode

E

endAddress() - Method in class org.openjdk.jol.info.GraphLayout

Answer the ending address of observed memory chunk

equals(Object) - Method in class org.openjdk.jol.info.ClassData

equals(Object) - Method in class org.openjdk.jol.info.ClassLayout

equals(Object) - Method in class org.openjdk.jol.info.FieldLayout

F

FieldData - Class in org.openjdk.jol.info

Holds the field information, without the layout.

FieldGraphPathRecord - Class in org.openjdk.jol.info

Object path in object graph.

FieldLayout - Class in org.openjdk.jol.info

Holds the field info with the layout.

FieldLayout(FieldData, long, long) - Constructor for class org.openjdk.jol.info.FieldLayout

Construct field layout with discovered offset and field size.

fieldOffset(Field) - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the field offset for a given field, starting from the object base.

fields() - Method in class org.openjdk.jol.info.ClassData

Get the fields' data, including all the fields in the hierarchy.

fields() - Method in class org.openjdk.jol.info.ClassLayout

Answer the set of fields, including those in superclasses

fieldsFor(String) - Method in class org.openjdk.jol.info.ClassData

Get the fields' data for the given class.

G

gcd(long, long) - Static method in class org.openjdk.jol.util.MathUtil

getAddressSize() - Method in class org.openjdk.jol.vm.sa.UniverseData

getBoolean(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads a boolean off the object at given offset.

getByte(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads a byte off the object at given offset.

getChar(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads a char off the object at given offset.

getClassCounts() - Method in class org.openjdk.jol.info.GraphLayout

Answer the class counts

getClasses() - Method in class org.openjdk.jol.info.GraphLayout

Answer the set of observed classes

getClassSizes() - Method in class org.openjdk.jol.info.GraphLayout

Answer the class sizes.

getDouble(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads a double off the object at given offset.

getFloat(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads a float off the object at given offset.

getInt(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads an int off the object at given offset.

getKlassOopSize() - Method in class org.openjdk.jol.vm.sa.UniverseData

getLong(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads a long off the object at given offset.

getNarrowKlassBase() - Method in class org.openjdk.jol.vm.sa.UniverseData

getNarrowKlassShift() - Method in class org.openjdk.jol.vm.sa.UniverseData

getNarrowOopBase() - Method in class org.openjdk.jol.vm.sa.UniverseData

getNarrowOopShift() - Method in class org.openjdk.jol.vm.sa.UniverseData

getObject(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads an object off the object at given offset.

getObjectAlignment() - Method in class org.openjdk.jol.vm.sa.UniverseData

getOopSize() - Method in class org.openjdk.jol.vm.sa.UniverseData

getSafeName(Class) - Static method in class org.openjdk.jol.util.ClassUtils

getShort(Object, long) - Method in interface org.openjdk.jol.vm.VirtualMachine

Reads a short off the object at given offset.

getUniverseData() - Method in class org.openjdk.jol.vm.sa.ServiceabilityAgentSupport

GraphLayout - Class in org.openjdk.jol.info

Holds the object graph layout info.

GraphLayout(Object...) - Constructor for class org.openjdk.jol.info.GraphLayout

GraphPathRecord - Class in org.openjdk.jol.info

Object path in object graph.

GraphVisitor - Interface in org.openjdk.jol.info

Object graph visitor callback.

GraphWalker - Class in org.openjdk.jol.info

Basic class to walk object graphs.

GraphWalker(Object...) - Constructor for class org.openjdk.jol.info.GraphWalker

H

hashCode() - Method in class org.openjdk.jol.info.ClassData

hashCode() - Method in class org.openjdk.jol.info.ClassLayout

hashCode() - Method in class org.openjdk.jol.info.FieldLayout

headerSize() - Method in class org.openjdk.jol.datamodel.CurrentDataModel

headerSize() - Method in interface org.openjdk.jol.datamodel.DataModel

Return the object header size.

headerSize() - Method in class org.openjdk.jol.datamodel.X86_32_DataModel

headerSize() - Method in class org.openjdk.jol.datamodel.X86_64_COOPS_DataModel

headerSize() - Method in class org.openjdk.jol.datamodel.X86_64_DataModel

headerSize() - Method in class org.openjdk.jol.info.ClassLayout

Answer header size

HeapDumpException - Exception in org.openjdk.jol.heap

HeapDumpException(String) - Constructor for exception org.openjdk.jol.heap.HeapDumpException

HeapDumpReader - Class in org.openjdk.jol.heap

Experimental heap dump reader

HeapDumpReader(File) - Constructor for class org.openjdk.jol.heap.HeapDumpReader

hostClass() - Method in class org.openjdk.jol.info.FieldData

Answers the class for the field holder.

hostClass() - Method in class org.openjdk.jol.info.FieldLayout

Answers the class for the field holder.

HotSpotLayouter - Class in org.openjdk.jol.layouters

VM layout simulator.

HotSpotLayouter(DataModel) - Constructor for class org.openjdk.jol.layouters.HotSpotLayouter

HotSpotLayouter(DataModel, boolean, boolean, boolean, boolean, int) - Constructor for class org.openjdk.jol.layouters.HotSpotLayouter

I

instance() - Method in class org.openjdk.jol.info.ClassData

instance() - Static method in class org.openjdk.jol.vm.sa.ServiceabilityAgentSupport

instanceSize() - Method in class org.openjdk.jol.info.ClassLayout

Answer instance size

IOUtils - Class in org.openjdk.jol.util

isArray() - Method in class org.openjdk.jol.info.ClassData

Is this class data for the array?

isCompressedKlassOopsEnabled() - Method in class org.openjdk.jol.vm.sa.UniverseData

isCompressedOopsEnabled() - Method in class org.openjdk.jol.vm.sa.UniverseData

isContended() - Method in class org.openjdk.jol.info.ClassData

Does the class have @Contended annotation?

isContended() - Method in class org.openjdk.jol.info.FieldData

Answers whether the field has contentded annotation.

isContended(AnnotatedElement) - Static method in class org.openjdk.jol.vm.ContendedSupport

J

java.lang - package java.lang

JOLUnsafeTrampoline - Class in java.lang

This class is needed to work around the protection that disallows polling objectFieldOffset on Records and hidden classes: https://bugs.openjdk.java.net/browse/JDK-8247444 https://hg.openjdk.java.net/jdk/jdk/file/ae002489df78/src/jdk.unsupported/share/classes/sun/misc/Unsafe.java#l640 It does so by injecting this class with elevated protection levels with sun.misc.Unsafe.defineAnonymousClass, and accessing the jdk.internal.misc.Unsafe.objectFieldOffset that does not have this protection.

JOLUnsafeTrampoline() - Constructor for class java.lang.JOLUnsafeTrampoline

K

keys() - Method in class org.openjdk.jol.util.Multiset

klass() - Method in class org.openjdk.jol.info.GraphPathRecord

L

layout(ClassData) - Method in class org.openjdk.jol.layouters.CurrentLayouter

layout(ClassData) - Method in class org.openjdk.jol.layouters.HotSpotLayouter

layout(ClassData) - Method in interface org.openjdk.jol.layouters.Layouter

layout(ClassData) - Method in class org.openjdk.jol.layouters.RawLayouter

Layouter - Interface in org.openjdk.jol.layouters

Layouter: given the class data, produces the layout.

loadClass(String) - Static method in class org.openjdk.jol.util.ClassUtils

Load class through our application classpath, plus optionally try to resolve from the additional classpath.

loadSystemClass(String) - Static method in class org.openjdk.jol.util.ClassUtils

Load class through the system classloader.

log2p(int) - Static method in class org.openjdk.jol.util.MathUtil

M

MathUtil - Class in org.openjdk.jol.util

MathUtil() - Constructor for class org.openjdk.jol.util.MathUtil

merge(ClassData) - Method in class org.openjdk.jol.info.ClassData

Merge this class data with the super-class class data

merge(Multiset<T>) - Method in class org.openjdk.jol.util.Multiset

minDiff(int...) - Static method in class org.openjdk.jol.util.MathUtil

Multiset<T> - Class in org.openjdk.jol.util

Naive HashMultiset.

Multiset() - Constructor for class org.openjdk.jol.util.Multiset

N

name() - Method in class org.openjdk.jol.info.ClassData

Answer class name

name() - Method in class org.openjdk.jol.info.FieldData

Answers the field name.

name() - Method in class org.openjdk.jol.info.FieldLayout

Answers the field name.

O

objectAlignment() - Method in class org.openjdk.jol.datamodel.CurrentDataModel

objectAlignment() - Method in interface org.openjdk.jol.datamodel.DataModel

Return the object alignment.

objectAlignment() - Method in class org.openjdk.jol.datamodel.X86_32_DataModel

objectAlignment() - Method in class org.openjdk.jol.datamodel.X86_64_COOPS_DataModel

objectAlignment() - Method in class org.openjdk.jol.datamodel.X86_64_DataModel

objectAlignment() - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the object alignment.

objectFieldOffset(Field) - Static method in class java.lang.JOLUnsafeTrampoline

objectHeaderSize() - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the object header size.

ObjectUtils - Class in org.openjdk.jol.util

ObjectUtils() - Constructor for class org.openjdk.jol.util.ObjectUtils

objToString() - Method in class org.openjdk.jol.info.GraphPathRecord

offset() - Method in class org.openjdk.jol.info.FieldLayout

Answers field offset

oopsCount() - Method in class org.openjdk.jol.info.ClassData

Returns the count of the oops in th class

org.openjdk.jol.datamodel - package org.openjdk.jol.datamodel

org.openjdk.jol.heap - package org.openjdk.jol.heap

org.openjdk.jol.info - package org.openjdk.jol.info

org.openjdk.jol.layouters - package org.openjdk.jol.layouters

org.openjdk.jol.util - package org.openjdk.jol.util

org.openjdk.jol.vm - package org.openjdk.jol.vm

org.openjdk.jol.vm.sa - package org.openjdk.jol.vm.sa

ownFields() - Method in class org.openjdk.jol.info.ClassData

Get the fields' of the own fields.

P

parent - Variable in class org.openjdk.jol.info.GraphPathRecord

parse() - Method in class org.openjdk.jol.heap.HeapDumpReader

parse(Field) - Static method in class org.openjdk.jol.info.FieldData

Parses the field data from the existing field.

parseClass(Class) - Static method in class org.openjdk.jol.info.ClassData

Parse the existing class.

parseClass(Class<?>) - Static method in class org.openjdk.jol.info.ClassLayout

Produce the class layout for the given class.

parseClass(Class<?>, Layouter) - Static method in class org.openjdk.jol.info.ClassLayout

Produce the class layout for the given class, and given layouter.

parseInstance(Object) - Static method in class org.openjdk.jol.info.ClassData

Parse the existing instance.

parseInstance(Object) - Static method in class org.openjdk.jol.info.ClassLayout

Produce the class layout for the given instance.

parseInstance(Object, Layouter) - Static method in class org.openjdk.jol.info.ClassLayout

Produce the class layout for the given instance, and given layouter.

parseInstance(Object...) - Static method in class org.openjdk.jol.info.GraphLayout

Parse the object graph starting from the given instance.

path() - Method in class org.openjdk.jol.info.ArrayGraphPathRecord

path() - Method in class org.openjdk.jol.info.FieldGraphPathRecord

path() - Method in class org.openjdk.jol.info.GraphPathRecord

pow2(int) - Static method in class org.openjdk.jol.util.MathUtil

R

RawLayouter - Class in org.openjdk.jol.layouters

Layouter which packs all the fields together, regardless of the alignment.

RawLayouter(DataModel) - Constructor for class org.openjdk.jol.layouters.RawLayouter

readAllBytes(InputStream) - Static method in class org.openjdk.jol.util.IOUtils

record(long) - Method in class org.openjdk.jol.info.GraphLayout

Get the object descriptor for the given address

refField() - Method in class org.openjdk.jol.info.FieldData

Get original Field.

S

safelyClose(OutputStream) - Static method in class org.openjdk.jol.util.IOUtils

safelyClose(InputStream) - Static method in class org.openjdk.jol.util.IOUtils

safelyClose(Reader) - Static method in class org.openjdk.jol.util.IOUtils

safeToString(Object) - Static method in class org.openjdk.jol.util.ObjectUtils

Produces the toString string, only calling toString() on known types, which do not mutate the instance.

ServiceabilityAgentSupport - Class in org.openjdk.jol.vm.sa

Hotspot Serviceability Agent support.

shortFieldName() - Method in class org.openjdk.jol.info.FieldLayout

size() - Method in class org.openjdk.jol.info.FieldLayout

Answers field size

size() - Method in class org.openjdk.jol.info.GraphPathRecord

size() - Method in class org.openjdk.jol.util.Multiset

sizeOf(String) - Method in class org.openjdk.jol.datamodel.CurrentDataModel

sizeOf(String) - Method in interface org.openjdk.jol.datamodel.DataModel

Return the size of the type.

sizeOf(String) - Method in class org.openjdk.jol.datamodel.X86_32_DataModel

sizeOf(String) - Method in class org.openjdk.jol.datamodel.X86_64_COOPS_DataModel

sizeOf(String) - Method in class org.openjdk.jol.datamodel.X86_64_DataModel

sizeOf(Object) - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the shallow size of the given object.

sizeOfField(String) - Method in interface org.openjdk.jol.vm.VirtualMachine

Returns the size of a field holding the type.

startAddress() - Method in class org.openjdk.jol.info.GraphLayout

Answer the starting address of observed memory chunk

subtract(GraphLayout) - Method in class org.openjdk.jol.info.GraphLayout

Subtract another layout data from the current one.

superClass() - Method in class org.openjdk.jol.info.ClassData

Get ClassData of the super-class.

T

toFootprint() - Method in class org.openjdk.jol.info.GraphLayout

Get the stringly representation of footprint table

toImage(String) - Method in class org.openjdk.jol.info.GraphLayout

Put the graphical representation of object graph into the file.

toPrintable() - Method in class org.openjdk.jol.info.ClassLayout

Produce printable stringly representation of class layout.

toPrintable(Object) - Method in class org.openjdk.jol.info.ClassLayout

Produce printable stringly representation of class layout.

toPrintable() - Method in class org.openjdk.jol.info.GraphLayout

Get the stringly representation of object graph

toString() - Method in class org.openjdk.jol.datamodel.X86_32_DataModel

toString() - Method in class org.openjdk.jol.datamodel.X86_64_COOPS_DataModel

toString() - Method in class org.openjdk.jol.datamodel.X86_64_DataModel

toString() - Method in class org.openjdk.jol.info.ClassLayout

toString() - Method in class org.openjdk.jol.info.FieldData

toString() - Method in class org.openjdk.jol.info.FieldLayout

toString() - Method in class org.openjdk.jol.layouters.CurrentLayouter

toString() - Method in class org.openjdk.jol.layouters.HotSpotLayouter

toString() - Method in class org.openjdk.jol.layouters.RawLayouter

totalCount() - Method in class org.openjdk.jol.info.GraphLayout

Answer the total instance count

totalSize() - Method in class org.openjdk.jol.info.GraphLayout

Answer the total instance footprint

typeClass() - Method in class org.openjdk.jol.info.FieldData

Answers the class for the field type

typeClass() - Method in class org.openjdk.jol.info.FieldLayout

Answers the class for the field type

U

UniverseData - Class in org.openjdk.jol.vm.sa

Result implementation for representing compressed reference informations as result.

UniverseData(int, int, int, boolean, long, int, int, boolean, long, int) - Constructor for class org.openjdk.jol.vm.sa.UniverseData

V

value(Object, Field) - Static method in class org.openjdk.jol.util.ObjectUtils

Get the object field value.

VirtualMachine - Interface in org.openjdk.jol.vm

visit(GraphPathRecord) - Method in interface org.openjdk.jol.info.GraphVisitor

Visit the graph record

visitClass(long, String, List<Integer>, int) - Method in class org.openjdk.jol.heap.HeapDumpReader

visitInstance(long, long, byte[]) - Method in class org.openjdk.jol.heap.HeapDumpReader

visitPrimArray(long, String, int, byte[]) - Method in class org.openjdk.jol.heap.HeapDumpReader

VM - Class in org.openjdk.jol.vm

VM() - Constructor for class org.openjdk.jol.vm.VM

W

walk() - Method in class org.openjdk.jol.info.GraphWalker

X

X86_32_DataModel - Class in org.openjdk.jol.datamodel

x86 data model, 32 bits.

X86_32_DataModel() - Constructor for class org.openjdk.jol.datamodel.X86_32_DataModel

X86_32_DataModel(int) - Constructor for class org.openjdk.jol.datamodel.X86_32_DataModel

X86_64_COOPS_DataModel - Class in org.openjdk.jol.datamodel

x86 data model, 64 bits, compressed references enabled.

X86_64_COOPS_DataModel() - Constructor for class org.openjdk.jol.datamodel.X86_64_COOPS_DataModel

X86_64_COOPS_DataModel(int) - Constructor for class org.openjdk.jol.datamodel.X86_64_COOPS_DataModel

X86_64_DataModel - Class in org.openjdk.jol.datamodel

x86 data model, 64 bits.

X86_64_DataModel() - Constructor for class org.openjdk.jol.datamodel.X86_64_DataModel

X86_64_DataModel(int) - Constructor for class org.openjdk.jol.datamodel.X86_64_DataModel

A C D E F G H I J K L M N O P R S T U V W X