JavaNCSS Metric Results

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

The following document contains the results of a JavaNCSS metric analysis.
JavaNCSS web site.

Packages

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

Packages sorted by NCSS.

PackageClassesMethodsNCSSJavadocsJavadoc linesSingle lines commentMulti lines comment
org.fest.javafx.maven156138714866352
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
156138714866352

Objects

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

TOP 30 classes containing the most NCSS.

ObjectNCSSMethodsClassesJavadocs
org.fest.javafx.maven.JavaFxcSetup46701
org.fest.javafx.maven.AbstractJavaFxcMojo44601
org.fest.javafx.maven.LoggingBuildListener381201
org.fest.javafx.maven.JavaFxcFactory37701
org.fest.javafx.maven.JavaFxHome20501
org.fest.javafx.maven.TestJavaFxcMojo18401
org.fest.javafx.maven.Overwrites17301
org.fest.javafx.maven.JavaFxcClassLoaderFactory16211
org.fest.javafx.maven.JavaFxcMojoValidator15301
org.fest.javafx.maven.JavaFxcMojo14401
org.fest.javafx.maven.JavaFxcClasspathFactory10101
org.fest.javafx.maven.JavaFxcInstantiator9201
org.fest.javafx.maven.JavaFxJarsInclusion9300
org.fest.javafx.maven.AntTaskExecutor5101
org.fest.javafx.maven.Environment4101

TOP 30 classes containing the most methods.

ObjectNCSSMethodsClassesJavadocs
org.fest.javafx.maven.LoggingBuildListener381201
org.fest.javafx.maven.JavaFxcFactory37701
org.fest.javafx.maven.JavaFxcSetup46701
org.fest.javafx.maven.AbstractJavaFxcMojo44601
org.fest.javafx.maven.JavaFxHome20501
org.fest.javafx.maven.JavaFxcMojo14401
org.fest.javafx.maven.TestJavaFxcMojo18401
org.fest.javafx.maven.JavaFxcMojoValidator15301
org.fest.javafx.maven.JavaFxJarsInclusion9300
org.fest.javafx.maven.Overwrites17301
org.fest.javafx.maven.JavaFxcClassLoaderFactory16211
org.fest.javafx.maven.JavaFxcInstantiator9201
org.fest.javafx.maven.AntTaskExecutor5101
org.fest.javafx.maven.Environment4101
org.fest.javafx.maven.JavaFxcClasspathFactory10101

Averages.

NCSS averageProgram NCSSClasses averageMethods averageJavadocs average
20.13387.000.074.070.93

Methods

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

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
org.fest.javafx.maven.JavaFxcSetup.setUpJavaFxc(Javac,AbstractJavaFxcMojo,File,JavaFxJarsInclusion)1820
org.fest.javafx.maven.JavaFxcFactory.createJavaFxc(File,JavaFxJarsInclusion)15120
org.fest.javafx.maven.LoggingBuildListener.log(String,int)1350
org.fest.javafx.maven.AbstractJavaFxcMojo.compile()1110
org.fest.javafx.maven.JavaFxcClasspathFactory.createCompilerClasspath(File)820
org.fest.javafx.maven.JavaFxcMojoValidator.validateOutputDirectory(AbstractJavaFxcMojo)750
org.fest.javafx.maven.JavaFxHome.verify(String)740
org.fest.javafx.maven.Overwrites.deleteOverwrites(File,String[])720
org.fest.javafx.maven.TestJavaFxcMojo.execute()750
org.fest.javafx.maven.JavaFxcClassLoaderFactory.fileUrlsFrom(Path)620
org.fest.javafx.maven.JavaFxcSetup.javaFxFiles(File)620
org.fest.javafx.maven.Overwrites.deleteOverwrite(File,String)630
org.fest.javafx.maven.AbstractJavaFxcMojo.isJavaProject()530
org.fest.javafx.maven.JavaFxcSetup.configureProject(Javac,AbstractJavaFxcMojo)510
org.fest.javafx.maven.JavaFxcSetup.setClasspath(Javac,AbstractJavaFxcMojo,File,JavaFxJarsInclusion)520
org.fest.javafx.maven.JavaFxcSetup.updatePathWithElements(Path,List)540
org.fest.javafx.maven.JavaFxHome.reference(String)540
org.fest.javafx.maven.AntTaskExecutor.execute(Task)430
org.fest.javafx.maven.JavaFxcFactory.createCompilerClasspath(File,JavaFxJarsInclusion)430
org.fest.javafx.maven.JavaFxcFactory.setCompilerClasspath(Javac,Path)430
org.fest.javafx.maven.JavaFxcInstantiator.instantiateJavaFxc(Path)410
org.fest.javafx.maven.JavaFxcMojo.execute()430
org.fest.javafx.maven.JavaFxcMojoValidator.validateSourceDirectory(AbstractJavaFxcMojo)440
org.fest.javafx.maven.JavaFxJarsInclusion.javaFxJarsInclusion(boolean)430
org.fest.javafx.maven.JavaFxcClassLoaderFactory.createClassLoader(Path)310
org.fest.javafx.maven.JavaFxcFactory.JavaFxcFactory(JavaFxcClasspathFactory,JavaFxcInstantiator)310
org.fest.javafx.maven.JavaFxcFactory.loadingTaskFailed(Exception)310
org.fest.javafx.maven.JavaFxcFactory.configureCompiler(Javac,Path)310
org.fest.javafx.maven.JavaFxcMojoValidator.validate(AbstractJavaFxcMojo)310
org.fest.javafx.maven.JavaFxcSetup.setSource(Javac,File)310

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
387.003.901.890.00

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).