The Java Research Runtime Enviroment - JDepend Source Code Analysis

Package	Total Classes	Abstract Classes	Concrete Classes	Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
jrre	12	0	12	18	13	0%	42%	58%
jrre.api.java.io	1	0	1	3	0	0%	0%	100%
jrre.api.java.lang	5	0	5	9	5	0%	36%	64%
jrre.api.java.lang.reflect	7	0	7	5	3	0%	38%	62%
jrre.classloader	1	0	1	1	6	0%	86%	14%
jrre.classloader.classfile	1	0	1	1	12	0%	92%	8%
jrre.classloader.classfile.access_flags	4	1	3	3	0	25%	0%	75%
jrre.classloader.classfile.attributes	11	0	11	3	3	0%	50%	50%
jrre.classloader.classfile.pool_entries	12	1	11	7	0	8%	0%	92%
jrre.event	8	1	7	2	1	12%	33%	54%
jrre.gui	16	0	16	1	3	0%	75%	25%
jrre.instructionset	2	1	1	16	0	50%	0%	50%
jrre.instructionset.comparison	3	0	3	1	3	0%	75%	25%
jrre.instructionset.controlflow	17	0	17	1	3	0%	75%	25%
jrre.instructionset.exceptions	1	0	1	1	2	0%	67%	33%
jrre.instructionset.math	11	0	11	1	3	0%	75%	25%
jrre.instructionset.methodinvocation	6	0	6	2	8	0%	80%	20%
jrre.instructionset.objects	12	0	12	2	5	0%	71%	29%
jrre.instructionset.pop	1	0	1	1	2	0%	67%	33%
jrre.instructionset.pop.localvariable	12	0	12	1	3	0%	75%	25%
jrre.instructionset.push	14	0	14	2	5	0%	71%	29%
jrre.instructionset.push.localvariables	14	0	14	1	3	0%	75%	25%
jrre.instructionset.typecasting	1	0	1	2	5	0%	71%	29%
jrre.nativesystem	1	0	1	1	0	0%	0%	100%
jrre.types	7	1	6	12	1	14%	8%	78%
jrre.unittests	10	0	10	0	7	0%	100%	0%
jrre.unittests.datastructures	8	0	8	0	2	0%	100%	0%
junit.framework	No stats available: package referenced, but not analyzed.

Packages

[summary ] [packages ] [cycles ] [explanations ]

jrre

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
18	13	0%	42%	58%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	ArrayInstance JRRE LocalVariableFrame Main MethodArea NativeMethodArea NativeStackFrame ObjectArea ObjectInstance OperandStack Stack StackFrame	jrre.api.java.lang jrre.api.java.lang.reflect jrre.classloader jrre.classloader.classfile.attributes jrre.gui jrre.instructionset.comparison jrre.instructionset.controlflow jrre.instructionset.exceptions jrre.instructionset.math jrre.instructionset.methodinvocation jrre.instructionset.objects jrre.instructionset.pop jrre.instructionset.pop.localvariable jrre.instructionset.push jrre.instructionset.push.localvariables jrre.instructionset.typecasting jrre.types jrre.unittests	jrre.api.java.lang jrre.api.java.lang.reflect jrre.classloader jrre.classloader.classfile.attributes jrre.classloader.classfile.pool_entries jrre.event jrre.gui jrre.instructionset jrre.instructionset.methodinvocation jrre.instructionset.objects jrre.instructionset.push jrre.instructionset.typecasting jrre.types

jrre.api.java.io

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	0	0%	0%	100%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	OutputStream	jrre.api.java.lang jrre.unittests jrre.unittests.datastructures	None

jrre.api.java.lang

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
9	5	0%	36%	64%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Class Object Runtime SymbolTable System	jrre jrre.classloader jrre.gui jrre.instructionset.methodinvocation jrre.instructionset.objects jrre.instructionset.push jrre.instructionset.typecasting jrre.unittests jrre.unittests.datastructures	jrre jrre.api.java.io jrre.api.java.lang.reflect jrre.classloader.classfile.pool_entries jrre.types

jrre.api.java.lang.reflect

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
5	3	0%	38%	62%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	ClassProperties DescriptorDecoder FieldEntry Fields Interfaces MethodEntry Methods	jrre jrre.api.java.lang jrre.classloader jrre.instructionset.methodinvocation jrre.unittests	jrre jrre.classloader.classfile.access_flags jrre.classloader.classfile.attributes

jrre.classloader

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	6	0%	86%	14%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	ClassLoader	jrre	jrre jrre.api.java.lang jrre.api.java.lang.reflect jrre.classloader.classfile.access_flags jrre.classloader.classfile.attributes jrre.classloader.classfile.pool_entries

jrre.classloader.classfile

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	12	0%	92%	8%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	InstructionDecoder	jrre.classloader.classfile.attributes	jrre.instructionset jrre.instructionset.comparison jrre.instructionset.controlflow jrre.instructionset.exceptions jrre.instructionset.math jrre.instructionset.methodinvocation jrre.instructionset.objects jrre.instructionset.pop jrre.instructionset.pop.localvariable jrre.instructionset.push jrre.instructionset.push.localvariables jrre.instructionset.typecasting

jrre.classloader.classfile.access_flags

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	0	25%	0%	75%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
AccessFlags	ClassAccessFlags FieldAccessFlags MethodAccessFlags	jrre.api.java.lang.reflect jrre.classloader jrre.instructionset.methodinvocation	None

jrre.classloader.classfile.attributes

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	3	0%	50%	50%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Attribute Attributes Code CodeAttribute ConstantValueAttribute ExceptionAttribute ExceptionTable ExceptionTableEntry LocalVariableAttributeTable LocalVariableEntry SourceFileAttribute	jrre jrre.api.java.lang.reflect jrre.classloader	jrre jrre.classloader.classfile jrre.instructionset

jrre.classloader.classfile.pool_entries

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
7	0	8%	0%	92%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
CPInfo	CPClass CPDouble CPFieldRef CPFloat CPInteger CPInterfaceMethodRef CPLong CPMethodRef CPNameType CPString CPUTF8	jrre jrre.api.java.lang jrre.classloader jrre.instructionset.methodinvocation jrre.instructionset.objects jrre.instructionset.push jrre.instructionset.typecasting	None

jrre.event

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	1	12%	33%	54%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
VMEventListener	OperandStackEvent PopOperandEvent PopStackFrameEvent PushOperandEvent PushStackFrameEvent VMEvent VMEventDispatcher	jrre jrre.gui	jrre.instructionset

jrre.gui

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Console ControlGui ControlPanel GraphPaperLayout JRREGUI JavaStackFrameGui MethodAreaGui NativeMethodAreaGui NativeStackFrameGui ObjectAreaGui OperandFrameGui OperandStackGUI Script StackFrameGUI TextEditor WindowDestroyer	jrre	jrre jrre.api.java.lang jrre.event

jrre.instructionset

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
16	0	50%	0%	50%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
Instruction	NoOperation	jrre jrre.classloader.classfile jrre.classloader.classfile.attributes jrre.event jrre.instructionset.comparison jrre.instructionset.controlflow jrre.instructionset.exceptions jrre.instructionset.math jrre.instructionset.methodinvocation jrre.instructionset.objects jrre.instructionset.pop jrre.instructionset.pop.localvariable jrre.instructionset.push jrre.instructionset.push.localvariables jrre.instructionset.typecasting jrre.unittests	None

jrre.instructionset.comparison

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	FCmpg FCmpl LCmp	jrre.classloader.classfile	jrre jrre.instructionset jrre.types

jrre.instructionset.controlflow

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Goto If_Icmpge If_Icmpgt If_Icmple If_Icmplt If_Icmpne If_acmpeq If_acmpne If_icmpeq Ifeq Ifge Ifgt Ifle Iflt Ifne Ifnonnull Ifnull	jrre.classloader.classfile	jrre jrre.instructionset jrre.types

jrre.instructionset.exceptions

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	2	0%	67%	33%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	AThrow	jrre.classloader.classfile	jrre jrre.instructionset

jrre.instructionset.math

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	DMul F2I FMul I2F IAdd IDiv IInc IMul INeg IShl ISub	jrre.classloader.classfile	jrre jrre.instructionset jrre.types

jrre.instructionset.methodinvocation

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	8	0%	80%	20%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	AReturn IReturn InvokeSpecial InvokeStatic InvokeVirtual Return	jrre jrre.classloader.classfile	jrre jrre.api.java.lang jrre.api.java.lang.reflect jrre.classloader.classfile.access_flags jrre.classloader.classfile.pool_entries jrre.instructionset jrre.nativesystem jrre.types

jrre.instructionset.objects

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	5	0%	71%	29%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	ANewArray ArrayLength CAStore GetField GetStatic InstanceOf MonitorEnter MonitorExit New NewArray PutField PutStatic	jrre jrre.classloader.classfile	jrre jrre.api.java.lang jrre.classloader.classfile.pool_entries jrre.instructionset jrre.types

jrre.instructionset.pop

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	2	0%	67%	33%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Pop	jrre.classloader.classfile	jrre jrre.instructionset

jrre.instructionset.pop.localvariable

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	AStore AStore_0 AStore_1 AStore_2 AStore_3 FStore_2 IAStore IStore IStore_0 IStore_1 IStore_2 IStore_3	jrre.classloader.classfile	jrre jrre.instructionset jrre.types

jrre.instructionset.push

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	5	0%	71%	29%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	AConst_null BIPush Dup Dup_x1 FConst_0 IConst_0 IConst_1 IConst_2 IConst_3 IConst_4 IConst_5 IConst_m1 LConst_0 Ldc	jrre jrre.classloader.classfile	jrre jrre.api.java.lang jrre.classloader.classfile.pool_entries jrre.instructionset jrre.types

jrre.instructionset.push.localvariables

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	ALoad ALoad_0 ALoad_1 ALoad_2 ALoad_3 CALoad FLoad_0 FLoad_2 IALoad ILoad ILoad_0 ILoad_1 ILoad_2 ILoad_3	jrre.classloader.classfile	jrre jrre.instructionset jrre.types

jrre.instructionset.typecasting

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	5	0%	71%	29%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	CheckCast	jrre jrre.classloader.classfile	jrre jrre.api.java.lang jrre.classloader.classfile.pool_entries jrre.instructionset jrre.types

jrre.nativesystem

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	0	0%	0%	100%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	NativeMethodTable	jrre.instructionset.methodinvocation	None

jrre.types

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
12	1	14%	8%	78%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
Type	CharType FloatType NullReference PrimitiveType ReferenceType StringType	jrre jrre.api.java.lang jrre.instructionset.comparison jrre.instructionset.controlflow jrre.instructionset.math jrre.instructionset.methodinvocation jrre.instructionset.objects jrre.instructionset.pop.localvariable jrre.instructionset.push jrre.instructionset.push.localvariables jrre.instructionset.typecasting jrre.unittests	jrre

jrre.unittests

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	7	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Algorithems JRRERunner LinkedList LoopsAndBranches MathmaticsTest Node ObjectsTest Simple StringManipulations StringTest	None	jrre jrre.api.java.io jrre.api.java.lang jrre.api.java.lang.reflect jrre.instructionset jrre.types junit.framework

jrre.unittests.datastructures

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	2	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Algorithems ArrayManipulations LinkedList LoopsAndBranches Queue QuickSorter Simple StringManipulations	None	jrre.api.java.io jrre.api.java.lang

Cycles

[summary ] [packages ] [cycles ] [explanations ]

Package	Cyclic Dependencies
jrre	jrre.types jrre
jrre.api.java.lang	jrre.types jrre jrre.types
jrre.api.java.lang.reflect	jrre.classloader.classfile.attributes jrre.classloader.classfile jrre.instructionset.methodinvocation jrre jrre.types jrre
jrre.classloader	jrre.classloader.classfile.attributes jrre.classloader.classfile jrre.instructionset.methodinvocation jrre jrre.types jrre
jrre.classloader.classfile	jrre.instructionset.methodinvocation jrre jrre.types jrre
jrre.classloader.classfile.attributes	jrre.classloader.classfile jrre.instructionset.methodinvocation jrre jrre.types jrre
jrre.gui	jrre jrre.types jrre
jrre.instructionset.comparison	jrre.types jrre jrre.types
jrre.instructionset.controlflow	jrre jrre.types jrre
jrre.instructionset.exceptions	jrre jrre.types jrre
jrre.instructionset.math	jrre.types jrre jrre.types
jrre.instructionset.methodinvocation	jrre jrre.types jrre
jrre.instructionset.objects	jrre.types jrre jrre.types
jrre.instructionset.pop	jrre jrre.types jrre
jrre.instructionset.pop.localvariable	jrre jrre.types jrre
jrre.instructionset.push	jrre.types jrre jrre.types
jrre.instructionset.push.localvariables	jrre jrre.types jrre
jrre.instructionset.typecasting	jrre.types jrre jrre.types
jrre.types	jrre jrre.types
jrre.unittests	jrre.types jrre jrre.types
jrre.unittests.datastructures	jrre.api.java.lang jrre.types jrre jrre.types

Explanations

[summary ] [packages ] [cycles ] [explanations ]

The following explanations are for quick reference and are lifted directly from the original JDepend documentation .

Term	Description
Number of Classes	The number of concrete and abstract classes (and interfaces) in the package is an indicator of the extensibility of the package.
Afferent Couplings	The number of other packages that depend upon classes within the package is an indicator of the package's responsibility.
Efferent Couplings	The number of other packages that the classes in the package depend upon is an indicator of the package's independence.
Abstractness	The ratio of the number of abstract classes (and interfaces) in the analyzed package to the total number of classes in the analyzed package. The range for this metric is 0 to 1, with A=0 indicating a completely concrete package and A=1 indicating a completely abstract package.
Instability	The ratio of efferent coupling (Ce) to total coupling (Ce / (Ce + Ca)). This metric is an indicator of the package's resilience to change. The range for this metric is 0 to 1, with I=0 indicating a completely stable package and I=1 indicating a completely instable package.
Distance	The perpendicular distance of a package from the idealized line A + I = 1. This metric is an indicator of the package's balance between abstractness and stability. A package squarely on the main sequence is optimally balanced with respect to its abstractness and stability. Ideal packages are either completely abstract and stable (x=0, y=1) or completely concrete and instable (x=1, y=0). The range for this metric is 0 to 1, with D=0 indicating a package that is coincident with the main sequence and D=1 indicating a package that is as far from the main sequence as possible.
Cycles	Packages participating in a package dependency cycle are in a deadly embrace with respect to reusability and their release cycle. Package dependency cycles can be easily identified by reviewing the textual reports of dependency cycles. Once these dependency cycles have been identified with JDepend, they can be broken by employing various object-oriented techniques.