queries

Value Members

1. object BytecodeInstructions extends FeatureQuery

   

   Counts the number of occurrences of each bytecode instruction.

2. object BytecodeInstrumentationAPIUsage extends APIFeatureQuery

   

   Extracts basic information about the usage of the Java Instrumentation API that has been enhanced in Java 6.

3. object ClassFileVersion extends FeatureQuery

   

   Counts the number of class files per class file version.

4. object ClassLoaderAPIUsage extends APIFeatureQuery

   

   Extracts calls to the java.lang.ClassLoader API.

5. object ClassTypes extends FeatureQuery

   

   Counts which kinds of class types are actually defined.

6. object DebugInformation extends FeatureQuery

   

   Classifies class file elements which contain debug information.

   Classifies class file elements which contain debug information.

   Note

   The "SourceDebugExtension" attribute is ignored as it is generally not used.

7. object FanInFanOut extends FeatureQuery

   

   This metric computes the Fan-In and Fan-Out of a class.

8. object FeatureConfiguration extends Serializable

   

9. object FieldAccessStatistics extends DefaultFeatureQuery

   

   Counts how often fields are accessed.

10. object GUIAPIUsage extends FeatureQuery

    

    Scans a class file's constant pool to check whether it refers to packages that belong to an API for graphical user interfaces.

    Scans a class file's constant pool to check whether it refers to packages that belong to an API for graphical user interfaces. The current analysis supports:

    • JavaFX (javafx.)
    • SWT (org.eclipse.swt)
    • Swing (javax.swing)
    • AWT (java.awt)

11. object JDBCAPIUsage extends APIFeatureQuery

    

    Counts the amount of calls to certain JDBC api methods

12. object JavaCryptoArchitectureUsage extends APIFeatureQuery

    

    Captures the usage of the Java Crypto Architecture.

13. object MethodTypes extends FeatureQuery

    

    Counts which types of methods types are found.

14. object MethodsWithoutReturns extends FeatureQuery

    

    Counts the number of methods without regular returns.

15. object Metrics extends FeatureQuery

    

    Extracts basic metric information (Fields/Methods per Class; Classes per Package; etc.).

16. object RecursiveDataStructures extends FeatureQuery

    

    Identifies recursive data structures.

    Identifies recursive data structures. Such data-structure can often significantly limit the scalability of analyses.

17. object ReflectionAPIUsage extends APIFeatureQuery

    

    Counts the number of certain calls to the Java Reflection API.

18. object SizeOfInheritanceTree extends FeatureQuery

    

    Computes the size of the inheritance tree for each class of a project and then assigns the class to its respective category.

    Computes the size of the inheritance tree for each class of a project and then assigns the class to its respective category.

    Here, the size is measured by counting all super types (interfaces and classes!)

19. object SystemAPIUsage extends APIFeatureQuery

    

    Counts the calls to specific JVM are system features.

20. object ThreadAPIUsage extends APIFeatureQuery

    

    Captures the usage of Thread-related API usage.

21. object TrivialReflectionUsage extends FeatureQuery

    

    Counts (non-)trivial usages of "Class.forName(...)".

22. object UnsafeAPIUsage extends APIFeatureQuery

    

    Groups features that rely on the Unsafe API.

    Groups features that rely on the Unsafe API. (sun.misc.Unsafe)

    Note

    Feature groups are taken from and are further discussed in the following paper: "Use at Your Own Risk: The Java Unsafe API in the Wild" by Luis Mastrangelo et al.

23. package util