Class ClassUtils



  • @API(status=INTERNAL,
         since="1.0")
    public final class ClassUtils
    extends java.lang.Object
    Collection of utilities for working with classes.

    DISCLAIMER

    These utilities are intended solely for usage within the JUnit framework itself. Any usage by external parties is not supported. Use at your own risk!

    Since:
    1.0
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.String nullSafeToString​(java.lang.Class<?>... classes)
      Generate a comma-separated list of fully qualified class names for the supplied classes.
      static java.lang.String nullSafeToString​(java.util.function.Function<? super java.lang.Class<?>,? extends java.lang.String> mapper, java.lang.Class<?>... classes)
      Generate a comma-separated list of mapped values for the supplied classes.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Method Detail

      • nullSafeToString

        public static java.lang.String nullSafeToString​(java.lang.Class<?>... classes)
        Generate a comma-separated list of fully qualified class names for the supplied classes.
        Parameters:
        classes - the classes whose names should be included in the generated string
        Returns:
        a comma-separated list of fully qualified class names, or an empty string if the supplied class array is null or empty
        See Also:
        nullSafeToString(Function, Class...), StringUtils.nullSafeToString(Object)
      • nullSafeToString

        public static java.lang.String nullSafeToString​(java.util.function.Function<? super java.lang.Class<?>,? extends java.lang.String> mapper,
                                                        java.lang.Class<?>... classes)
        Generate a comma-separated list of mapped values for the supplied classes.

        The values are generated by the supplied mapper (e.g., Class::getName, Class::getSimpleName, etc.), unless a class reference is null in which case it will be mapped to "null".

        Parameters:
        mapper - the mapper to use
        classes - the classes to map
        Returns:
        a comma-separated list of mapped values, or an empty string if the supplied class array is null or empty
        See Also:
        nullSafeToString(Class...), StringUtils.nullSafeToString(Object)