JavaNCSS Metric Results

[ package ] [ object ] [ method ] [ explanation ]

The following document contains the results of a JavaNCSS metric analysis, using JavaNCSS version 32.53.
JavaNCSS web site.

Packages

[ package ] [ object ] [ method ] [ explanation ]

Packages sorted by NCSS.

PackageClassesMethodsNCSSJavadocsJavadoc linesSingle lines commentMulti lines comment
patterntesting.concurrent.junit1876522684358119
patterntesting.concurrent.junit.internal53119329187170
patterntesting.concurrent412531066557
patterntesting.concurrent.experimental117214022
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
2812077510970214268

Objects

[ package ] [ object ] [ method ] [ explanation ]

TOP 30 classes containing the most NCSS.

ObjectNCSSMethodsClassesJavadocs
patterntesting.concurrent.junit.JUnitExecutor19021322
patterntesting.concurrent.junit.internal.RecordingRunNotifier13418220
patterntesting.concurrent.junit.ParallelRunner13117415
patterntesting.concurrent.junit.ParallelProxyRunner647410
patterntesting.concurrent.ThreadDeadLockMonitor37916
patterntesting.concurrent.junit.internal.BackgroundRunner29516
patterntesting.concurrent.junit.RecordedStatement27708
patterntesting.concurrent.junit.JUnit4Executor26303
patterntesting.concurrent.junit.internal.RecordingRunNotifier.FireRecord22504
patterntesting.concurrent.junit.JUnit3Executor18303
patterntesting.concurrent.junit.ParallelSuite16607
patterntesting.concurrent.junit.internal.ParallelBuilder11203
patterntesting.concurrent.junit.JUnitExecutor.Thrower11201
patterntesting.concurrent.DeadLockLogger5102
patterntesting.concurrent.junit.ParallelRunner.Result5101
patterntesting.concurrent.junit.ParallelProxyRunner.Result5101
patterntesting.concurrent.junit.JUnitExecutor.Callable5100
patterntesting.concurrent.junit.JUnitExecutor.Result5101
patterntesting.concurrent.experimental.ParallelProxyRunner3102
patterntesting.concurrent.junit.internal.BackgroundRunner.Runnable3100
patterntesting.concurrent.junit.ParallelRunner.Callable2100
patterntesting.concurrent.junit.ParallelRunner.Runnable2100
patterntesting.concurrent.junit.ParallelRunner.Statement2100
patterntesting.concurrent.junit.ParallelProxyRunner.Callable2100
patterntesting.concurrent.junit.ParallelProxyRunner.Runnable2100
patterntesting.concurrent.junit.ParallelProxyRunner.Statement2100
patterntesting.concurrent.DeadLockListener2102
patterntesting.concurrent.ThreadDeadLockMonitor.TimerTask2100

TOP 30 classes containing the most methods.

ObjectNCSSMethodsClassesJavadocs
patterntesting.concurrent.junit.JUnitExecutor19021322
patterntesting.concurrent.junit.internal.RecordingRunNotifier13418220
patterntesting.concurrent.junit.ParallelRunner13117415
patterntesting.concurrent.ThreadDeadLockMonitor37916
patterntesting.concurrent.junit.ParallelProxyRunner647410
patterntesting.concurrent.junit.RecordedStatement27708
patterntesting.concurrent.junit.ParallelSuite16607
patterntesting.concurrent.junit.internal.BackgroundRunner29516
patterntesting.concurrent.junit.internal.RecordingRunNotifier.FireRecord22504
patterntesting.concurrent.junit.JUnit4Executor26303
patterntesting.concurrent.junit.JUnit3Executor18303
patterntesting.concurrent.junit.internal.ParallelBuilder11203
patterntesting.concurrent.junit.JUnitExecutor.Thrower11201
patterntesting.concurrent.DeadLockLogger5102
patterntesting.concurrent.experimental.ParallelProxyRunner3102
patterntesting.concurrent.junit.internal.BackgroundRunner.Runnable3100
patterntesting.concurrent.junit.ParallelRunner.Callable2100
patterntesting.concurrent.junit.ParallelRunner.Result5101
patterntesting.concurrent.junit.ParallelRunner.Runnable2100
patterntesting.concurrent.junit.ParallelRunner.Statement2100
patterntesting.concurrent.junit.ParallelProxyRunner.Callable2100
patterntesting.concurrent.junit.ParallelProxyRunner.Result5101
patterntesting.concurrent.junit.ParallelProxyRunner.Runnable2100
patterntesting.concurrent.junit.ParallelProxyRunner.Statement2100
patterntesting.concurrent.junit.JUnitExecutor.Callable5100
patterntesting.concurrent.junit.JUnitExecutor.Result5101
patterntesting.concurrent.DeadLockListener2102
patterntesting.concurrent.ThreadDeadLockMonitor.TimerTask2100

Averages.

NCSS averageProgram NCSSClasses averageMethods averageJavadocs average
27.25775.000.544.294.18

Methods

[ package ] [ object ] [ method ] [ explanation ]

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
patterntesting.concurrent.junit.JUnitExecutor.invokeTest(Method)3191
patterntesting.concurrent.junit.internal.RecordingRunNotifier.replayRecord(RunNotifier,FireRecord)3090
patterntesting.concurrent.junit.ParallelRunner.invokeTest(FrameworkMethod)27111
patterntesting.concurrent.junit.JUnitExecutor.logMethod(Method,NotNull[],Throwable)2461
patterntesting.concurrent.junit.ParallelProxyRunner.runChild(FrameworkMethod,RunNotifier)2171
patterntesting.concurrent.junit.JUnitExecutor.callSetupBeforeClass()2071
patterntesting.concurrent.junit.JUnit4Executor.setupMethods()1791
patterntesting.concurrent.junit.ParallelRunner.methodBlock(FrameworkMethod)13101
patterntesting.concurrent.junit.JUnitExecutor.playTest(String,Object)1371
patterntesting.concurrent.junit.ParallelRunner.invoke(FrameworkMethod,Object,RecordedStatement)1240
patterntesting.concurrent.junit.JUnitExecutor.call(Method,Object)1141
patterntesting.concurrent.junit.internal.RecordingRunNotifier.replay(RunNotifier)1041
patterntesting.concurrent.junit.JUnit3Executor.setupMethods()1041
patterntesting.concurrent.junit.internal.BackgroundRunner.startRunner()921
patterntesting.concurrent.junit.internal.RecordingRunNotifier.replay(RunNotifier,Thread)931
patterntesting.concurrent.junit.ParallelProxyRunner.runChildren(RunNotifier)921
patterntesting.concurrent.junit.JUnitExecutor.triggerTest(Result)911
patterntesting.concurrent.ThreadDeadLockMonitor.checkForDeadLocks()940
patterntesting.concurrent.junit.internal.ParallelBuilder.runnerForClass(Class)831
patterntesting.concurrent.junit.internal.RecordingRunNotifier.FireRecord.getDescription()861
patterntesting.concurrent.junit.internal.RecordingRunNotifier.recordStart(FireEvent,Object)821
patterntesting.concurrent.junit.internal.RecordingRunNotifier.waitForEndRecordList(Description,long)850
patterntesting.concurrent.junit.internal.RecordingRunNotifier.failureRecorded()861
patterntesting.concurrent.junit.ParallelRunner.recordResults()831
patterntesting.concurrent.junit.RecordedStatement.setExpected(Throwable)831
patterntesting.concurrent.junit.internal.BackgroundRunner.run(RunNotifier)721
patterntesting.concurrent.junit.ParallelRunner.childrenInvoker(RunNotifier)731
patterntesting.concurrent.junit.ParallelRunner.runChildren(RunNotifier)721
patterntesting.concurrent.junit.ParallelRunner.invokeBefores(Object,RecordedStatement)721
patterntesting.concurrent.junit.ParallelRunner.invokeAfters(Object,RecordedStatement)721

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
775.005.422.360.75

Explanations

[ package ] [ object ] [ method ] [ explanation ]

Non Commenting Source Statements (NCSS)

Statements for JavaNCSS are not statements as specified in the Java Language Specification but include all kinds of declarations too. Roughly spoken, NCSS is approximately equivalent to counting ';' and '{' characters in Java source files.

Not counted are empty statements, empty blocks or semicolons after closing brackets. Of course, comments don't get counted too. Closing brackets also never get counted, the same applies to blocks in general.

Examples
Package declarationpackage java.lang;
Import declarationimport java.awt.*;
Class declaration
  • public class Foo {
  • public class Foo extends Bla {
Interface declarationpublic interface Able ; {
Field declaration
  • int a;
  • int a, b, c = 5, d = 6;
Method declaration
  • public void cry();
  • public void gib() throws DeadException {
Constructor declarationpublic Foo() {
Constructor invocation
  • this();
  • super();
Statement declaration
  • i = 0;
  • if (ok)
  • if (exit) {
  • if (3 == 4);
  • if (4 == 4) { ;
  • } else {
Label declarationfine :

In some cases consecutive semicolons are illegal according to the JLS but JavaNCSS still tolerates them (thought JavaNCSS is still more strict as 'javac'). Nevertheless they are never counted as two statements.

Cyclomatic Complexity Number (CCN)

CCN is also know as McCabe Metric. There exists a much hyped theory behind it based on graph theory, but it all comes down to simply counting 'if', 'for', 'while' statements etc. in a method. Whenever the control flow of a method splits, the "CCN counter" gets incremented by one.

Each method has a minimum value of 1 per default. For each of the following Java keywords/statements this value gets incremented by one:

  • if
  • for
  • while
  • case
  • catch

Also if the control flow of a method returns abortively the CCNvalue will be incremented by one:

  • if
  • for

An ordinary return at the end of method will not be counted.

Note that 'else', 'default', and 'finally' don't increment the CCN value any further. On the other hand, a simple method with a 'switch' statement and a huge block of 'case' statements can have a surprisingly high CCN value (still it has the same value when converting a 'switch' block to an equivalent sequence of 'if' statements).