Package org.junit.platform.commons.util

Class ClassUtils

java.lang.Object

org.junit.platform.commons.util.ClassUtils

@API(status=INTERNAL,
     since="1.0")
public final class ClassUtils
extends 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

Modifier and Type	Method	Description
static String	nullSafeToString(Class<?> clazz)	Get the fully qualified name of the supplied class.
static String	nullSafeToString(Class<?>... classes)	Generate a comma-separated list of fully qualified class names for the supplied classes.
static String	nullSafeToString(Function<? super Class<?>,? extends String> mapper, 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 String nullSafeToString(Class<?> clazz)

Get the fully qualified name of the supplied class.

This is a null-safe variant of Class.getName().

Parameters:

clazz - the class whose name should be retrieved, potentially null

Returns:

the fully qualified class name or "null" if the supplied class reference is null

Since:

1.3

See Also:

nullSafeToString(Class...), StringUtils.nullSafeToString(Object)

nullSafeToString

public static String nullSafeToString(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 String nullSafeToString(Function<? super Class<?>,? extends String> mapper,
                                      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)