ClassUtils (Apache Juneau 7.1.1)

java.lang.Object
- org.apache.juneau.internal.ClassUtils

public final class ClassUtils
extends Object

Class-related utility methods.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class ClassUtils.MethodInfo
Simple bean that shows the name, parameter types, and return type of a method.

Nested Classes
Modifier and Type	Class and Description
`static class`	`ClassUtils.MethodInfo` Simple bean that shows the name, parameter types, and return type of a method.

Constructor Summary

Constructors
Constructor and Description

ClassUtils()

Constructors
Constructor and Description
`ClassUtils()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static boolean`	`argsMatch(Class<?>[] paramTypes, Class<?>[] argTypes)` Returns true if the specified argument types are valid for the specified parameter types.
`static void`	`assertArgsOfType(Method m, Class<?>... args)` Throws an `IllegalArgumentException` if the parameters on the method are not in the specified list provided.
`static <T> Constructor<T>`	`findConstructor(Class<T> c, Visibility vis, boolean fuzzyArgs, Class<?>... argTypes)` Finds a constructor with the specified parameters without throwing an exception.
`static <T> Constructor<T>`	`findNoArgConstructor(Class<T> c, Visibility v)` Locates the no-arg constructor for the specified class.
`static <T> Constructor<T>`	`findPublicConstructor(Class<T> c, boolean fuzzyArgs, Class<?>... argTypes)` Finds a public constructor with the specified parameters without throwing an exception.
`static <T> Constructor<T>`	`findPublicConstructor(Class<T> c, boolean fuzzyArgs, Object... args)` Finds the public constructor that can take in the specified arguments.
`static <T> Constructor<T>`	`findPublicConstructor(Class<T> c, Class<?>... args)` Finds the public constructor that can take in the specified arguments.
`static <T> Constructor<T>`	`findPublicConstructor(Class<T> c, Object... args)` Finds the public constructor that can take in the specified arguments.
`static Method`	`findPublicFromStringMethod(Class<?> c)` Finds the public static "fromString" method on the specified class.
`static Method`	`findPublicMethod(Class<?> c, String name, Class<?> returnType, Class<?>... argTypes)` Finds a public method with the specified parameters.
`static <T> T`	`fromString(Class<T> c, String s)` Constructs a new instance of the specified class from the specified string.
`static int`	`fuzzyArgsMatch(Class<?>[] paramTypes, Class<?>[] argTypes)` Returns a number representing the number of arguments that match the specified parameters.
`static Iterable<Field>`	`getAllFields(Class c, boolean parentFirst)` Returns all the fields in the specified class and all parent classes.
`static Iterable<Method>`	`getAllMethods(Class c, boolean parentFirst)` Returns all the methods in the specified class and all parent classes.
`static Class<?>[]`	`getClasses(Object... args)` Returns the class types for the specified arguments.
`static Class<?>`	`getClassFromReadableName(ClassLoader cl, String name)` Converts the string generated by `getReadableClassName(Class)` back into a `Class`.
`static <T extends Annotation> T`	`getMethodAnnotation(Class<T> a, Class<?> c, Method method)` Returns the specified annotation on the specified method.
`static <T extends Annotation> T`	`getMethodAnnotation(Class<T> a, Method m)` Returns the specified annotation on the specified method.
`static ClassUtils.MethodInfo[]`	`getMethodInfo(Collection<Method> m)` Returns `ClassUtils.MethodInfo` beans that describe the specified methods.
`static ClassUtils.MethodInfo`	`getMethodInfo(Method m)` Returns a `ClassUtils.MethodInfo` bean that describes the specified method.
`static String`	`getMethodSignature(Method m)` Returns the signature of the specified method.
`static Iterator<Class<?>>`	`getParentClasses(Class<?> c, boolean parentFirst, boolean includeInterfaces)` Returns a list of all the parent classes of the specified class including the class itself.
`static Object`	`getPrimitiveDefault(Class<?> primitiveClass)` Returns the default value for the specified primitive class.
`static Class<?>`	`getPrimitiveForWrapper(Class<?> c)` If the specified class is a primitive wrapper (e.g.
`static Class<?>`	`getPrimitiveWrapper(Class<?> c)` If the specified class is a primitive (e.g.
`static String`	`getReadableClassName(Class<?> c)` Shortcut for calling `getReadableClassName(c.getName())`
`static String`	`getReadableClassName(String className)` Converts the specified class name to a readable form when class name is a special construct like "[[Z".
`static String`	`getReadableClassNameForObject(Object o)` Shortcut for calling `getReadableClassName(c.getClass().getName())`
`static ObjectList`	`getReadableClassNames(Object[] o)` Given the specified list of objects, return readable names for the class types of the objects.
`static Class<?>`	`getWrapperIfPrimitive(Class<?> c)` If the specified class is a primitive (e.g.
`static boolean`	`isAbstract(Class<?> c)` Returns true if the specified class is abstract.
`static boolean`	`isNotDeprecated(Class<?> c)` Returns true if the specified class has the `@Deprecated` annotation on it.
`static boolean`	`isNotDeprecated(Constructor<?> c)` Returns true if the specified constructor has the `@Deprecated` annotation on it.
`static boolean`	`isNotDeprecated(Method m)` Returns true if the specified method has the `@Deprecated` annotation on it.
`static boolean`	`isParentClass(Class<?> parent, Class<?> child)` Returns true if `parent` is a parent class or the same as `child`.
`static boolean`	`isParentClass(Class<?> parent, Class<?> child, boolean strict)` Returns true if `parent` is a parent class of `child`.
`static boolean`	`isParentClass(Class<?> parent, Type child)` Returns true if `parent` is a parent class or the same as `child`.
`static boolean`	`isPublic(Class<?> c)` Returns true if the specified class is public.
`static boolean`	`isPublic(Constructor<?> c)` Returns true if the specified constructor is public.
`static boolean`	`isPublic(Method m)` Returns true if the specified method is public.
`static boolean`	`isStatic(Class<?> c)` Returns true if the specified class is public.
`static boolean`	`isStatic(Method m)` Returns true if the specified method is static.
`static <T> T`	`newInstance(Class<T> c, Object c2)` Creates an instance of the specified class.
`static <T> T`	`newInstance(Class<T> c, Object c2, boolean fuzzyArgs, Object... args)` Creates an instance of the specified class.
`static <T> T`	`newInstanceFromOuter(Object outer, Class<T> c, Object c2, boolean fuzzyArgs, Object... args)` Creates an instance of the specified class from within the context of another object.
`static Class<?>`	`resolveParameterType(Class<?> c, int index, Class<?> oc)` Finds the real parameter type of the specified class.
`static Field[]`	`sort(Field[] m)` Sorts methods in alphabetical order.
`static Method[]`	`sort(Method[] m)` Sorts methods in alphabetical order.
`static String`	`toString(Field f)` Returns a readable representation of the specified field.
`static String`	`toString(Method m)` Returns a readable representation of the specified method.
`static String`	`toString(Object o)` Converts an object to a string.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ClassUtils
```
public ClassUtils()
```
- Method Detail
  - getReadableClassNames
```
public static ObjectList getReadableClassNames(Object[] o)
```
    Given the specified list of objects, return readable names for the class types of the objects.
    
    Parameters:
    
    o - The objects.
    
    Returns:
    
    An array of readable class type strings.
  - getReadableClassName
```
public static String getReadableClassName(Class<?> c)
```
    Shortcut for calling getReadableClassName(c.getName())
    
    Parameters:
    
    c - The class.
    
    Returns:
    
    A readable class type name, or null if parameter is null.
  - getReadableClassNameForObject
```
public static String getReadableClassNameForObject(Object o)
```
    Shortcut for calling getReadableClassName(c.getClass().getName())
    
    Parameters:
    
    o - The object whose class we want to render.
    
    Returns:
    
    A readable class type name, or null if parameter is null.
  - getReadableClassName
```
public static String getReadableClassName(String className)
```
    Converts the specified class name to a readable form when class name is a special construct like "[[Z".
    Example:
    
    getReadableClassName("java.lang.Object"); // Returns "java.lang.Object" getReadableClassName("boolean"); // Returns "boolean" getReadableClassName("[Z"); // Returns "boolean[]" getReadableClassName("[[Z"); // Returns "boolean[][]" getReadableClassName("[Ljava.lang.Object;"); // Returns "java.lang.Object[]" getReadableClassName(null); // Returns null
    
    Parameters:
    
    className - The class name.
    
    Returns:
    
    A readable class type name, or null if parameter is null.
  - getClassFromReadableName
```
public static Class<?> getClassFromReadableName(ClassLoader cl,
                                                String name)
                                         throws ClassNotFoundException
```
    Converts the string generated by getReadableClassName(Class) back into a Class.
    Generics are stripped from the string since they cannot be converted to a class.
    
    Parameters:
    
    cl - The classloader to use to load the class.
    
    name - The readable class name.
    
    Returns:
    
    The class object.
    
    Throws:
    
    ClassNotFoundException
  - isParentClass
```
public static boolean isParentClass(Class<?> parent,
                                    Class<?> child,
                                    boolean strict)
```
    Returns true if parent is a parent class of child.
    
    Parameters:
    
    parent - The parent class.
    
    child - The child class.
    
    strict - If true returns false if the classes are the same.
    
    Returns:
    
    true if parent is a parent class of child.
  - isParentClass
```
public static boolean isParentClass(Class<?> parent,
                                    Class<?> child)
```
    Returns true if parent is a parent class or the same as child.
    
    Parameters:
    
    parent - The parent class.
    
    child - The child class.
    
    Returns:
    
    true if parent is a parent class or the same as child.
  - isParentClass
```
public static boolean isParentClass(Class<?> parent,
                                    Type child)
```
    Returns true if parent is a parent class or the same as child.
    
    Parameters:
    
    parent - The parent class.
    
    child - The child class.
    
    Returns:
    
    true if parent is a parent class or the same as child.
  - getMethodSignature
```
public static String getMethodSignature(Method m)
```
    Returns the signature of the specified method.
    For no-arg methods, the signature will be a simple string such as "toString". For methods with one or more args, the arguments will be fully-qualified class names (e.g. "append(java.util.StringBuilder,boolean)")
    
    Parameters:
    
    m - The methods to get the signature on.
    
    Returns:
    
    The methods signature.
  - getPrimitiveWrapper
```
public static Class<?> getPrimitiveWrapper(Class<?> c)
```
    If the specified class is a primitive (e.g. int.class) returns it's wrapper class (e.g. Integer.class).
    
    Parameters:
    
    c - The class.
    
    Returns:
    
    The wrapper class, or null if class is not a primitive.
  - getPrimitiveForWrapper
```
public static Class<?> getPrimitiveForWrapper(Class<?> c)
```
    If the specified class is a primitive wrapper (e.g. Integer.class) returns it's primitive class (e.g. int.class).
    
    Parameters:
    
    c - The class.
    
    Returns:
    
    The primitive class, or null if class is not a primitive wrapper.
  - getWrapperIfPrimitive
```
public static Class<?> getWrapperIfPrimitive(Class<?> c)
```
    If the specified class is a primitive (e.g. int.class) returns it's wrapper class (e.g. Integer.class).
    
    Parameters:
    
    c - The class.
    
    Returns:
    
    The wrapper class if it's primitive, or the same class if class is not a primitive.
  - isNotDeprecated
```
public static boolean isNotDeprecated(Class<?> c)
```
    Returns true if the specified class has the @Deprecated annotation on it.
    
    Parameters:
    
    c - The class.
    
    Returns:
    
    true if the specified class has the @Deprecated annotation on it.
  - isNotDeprecated
```
public static boolean isNotDeprecated(Method m)
```
    Returns true if the specified method has the @Deprecated annotation on it.
    
    Parameters:
    
    m - The method.
    
    Returns:
    
    true if the specified method has the @Deprecated annotation on it.
  - isNotDeprecated
```
public static boolean isNotDeprecated(Constructor<?> c)
```
    Returns true if the specified constructor has the @Deprecated annotation on it.
    
    Parameters:
    
    c - The constructor.
    
    Returns:
    
    true if the specified constructor has the @Deprecated annotation on it.
  - isPublic
```
public static boolean isPublic(Class<?> c)
```
    Returns true if the specified class is public.
    
    Parameters:
    
    c - The class.
    
    Returns:
    
    true if the specified class is public.
  - isStatic
```
public static boolean isStatic(Class<?> c)
```
    Returns true if the specified class is public.
    
    Parameters:
    
    c - The class.
    
    Returns:
    
    true if the specified class is public.
  - isAbstract
```
public static boolean isAbstract(Class<?> c)
```
    Returns true if the specified class is abstract.
    
    Parameters:
    
    c - The class.
    
    Returns:
    
    true if the specified class is abstract.
  - isPublic
```
public static boolean isPublic(Method m)
```
    Returns true if the specified method is public.
    
    Parameters:
    
    m - The method.
    
    Returns:
    
    true if the specified method is public.
  - isStatic
```
public static boolean isStatic(Method m)
```
    Returns true if the specified method is static.
    
    Parameters:
    
    m - The method.
    
    Returns:
    
    true if the specified method is static.
  - isPublic
```
public static boolean isPublic(Constructor<?> c)
```
    Returns true if the specified constructor is public.
    
    Parameters:
    
    c - The constructor.
    
    Returns:
    
    true if the specified constructor is public.
  - getMethodAnnotation
```
public static <T extends Annotation> T getMethodAnnotation(Class<T> a,
                                                           Method m)
```
    Returns the specified annotation on the specified method.
    Similar to Method.getAnnotation(Class), but searches up the parent hierarchy for the annotation defined on parent classes and interfaces.
    Normally, annotations defined on methods of parent classes and interfaces are not inherited by the child methods. This utility method gets around that limitation by searching the class hierarchy for the "same" method (i.e. the same name and arguments).
    
    Parameters:
    
    a - The annotation to search for.
    
    m - The method to search.
    
    Returns:
    
    The annotation, or null if it wasn't found.
  - getMethodAnnotation
```
public static <T extends Annotation> T getMethodAnnotation(Class<T> a,
                                                           Class<?> c,
                                                           Method method)
```
    Returns the specified annotation on the specified method.
    Similar to Method.getAnnotation(Class), but searches up the parent hierarchy for the annotation defined on parent classes and interfaces.
    Normally, annotations defined on methods of parent classes and interfaces are not inherited by the child methods. This utility method gets around that limitation by searching the class hierarchy for the "same" method (i.e. the same name and arguments).
    
    Parameters:
    
    a - The annotation to search for.
    
    c - The child class to start searching from. Note that it can be a descendant class of the actual declaring class of the method passed in. This allows you to find annotations on methods overridden by the method passed in.
    
    method - The method to search.
    
    Returns:
    
    The annotation, or null if it wasn't found.
  - findNoArgConstructor
```
public static final <T> Constructor<T> findNoArgConstructor(Class<T> c,
                                                            Visibility v)
```
    Locates the no-arg constructor for the specified class.
    Constructor must match the visibility requirements specified by parameter 'v'. If class is abstract, always returns null. Note that this also returns the 1-arg constructor for non-static member classes.
    
    Parameters:
    
    c - The class from which to locate the no-arg constructor.
    
    v - The minimum visibility.
    
    Returns:
    
    The constructor, or null if no no-arg constructor exists with the required visibility.
  - resolveParameterType
```
public static Class<?> resolveParameterType(Class<?> c,
                                            int index,
                                            Class<?> oc)
```
    Finds the real parameter type of the specified class.
    
    Parameters:
    
    c - The class containing the parameters (e.g. PojoSwap<T,S>)
    
    index - The zero-based index of the parameter to resolve.
    
    oc - The class we're trying to resolve the parameter type for.
    
    Returns:
    
    The resolved real class.
  - findPublicMethod
```
public static Method findPublicMethod(Class<?> c,
                                      String name,
                                      Class<?> returnType,
                                      Class<?>... argTypes)
```
    Finds a public method with the specified parameters.
    
    Parameters:
    
    c - The class to look for the method.
    
    name - The method name.
    
    returnType - The return type of the method. Can be a super type of the actual return type. For example, if the actual return type is CharSequence, then Object will match but String will not.
    
    argTypes - The argument types of the method. Can be subtypes of the actual parameter types. For example, if the parameter type is CharSequence, then String will match but Object will not.
    
    Returns:
    
    The matched method, or null if no match was found.
  - findPublicConstructor
```
public static <T> Constructor<T> findPublicConstructor(Class<T> c,
                                                       boolean fuzzyArgs,
                                                       Class<?>... argTypes)
```
    Finds a public constructor with the specified parameters without throwing an exception.
    
    Parameters:
    
    c - The class to search for a constructor.
    
    fuzzyArgs - Use fuzzy-arg matching. Find a constructor that best matches the specified args.
    
    argTypes - The argument types in the constructor. Can be subtypes of the actual constructor argument types.
    
    Returns:
    
    The matching constructor, or null if constructor could not be found.
  - findConstructor
```
public static <T> Constructor<T> findConstructor(Class<T> c,
                                                 Visibility vis,
                                                 boolean fuzzyArgs,
                                                 Class<?>... argTypes)
```
    Finds a constructor with the specified parameters without throwing an exception.
    
    Parameters:
    
    c - The class to search for a constructor.
    
    vis - The minimum visibility.
    
    fuzzyArgs - Use fuzzy-arg matching. Find a constructor that best matches the specified args.
    
    argTypes - The argument types in the constructor. Can be subtypes of the actual constructor argument types.
    
    Returns:
    
    The matching constructor, or null if constructor could not be found.
  - argsMatch
```
public static boolean argsMatch(Class<?>[] paramTypes,
                                Class<?>[] argTypes)
```
    Returns true if the specified argument types are valid for the specified parameter types.
    
    Parameters:
    
    paramTypes - The parameters types specified on a method.
    
    argTypes - The class types of the arguments being passed to the method.
    
    Returns:
    
    true if the arguments match the parameters.
  - fuzzyArgsMatch
```
public static int fuzzyArgsMatch(Class<?>[] paramTypes,
                                 Class<?>[] argTypes)
```
    Returns a number representing the number of arguments that match the specified parameters.
    
    Parameters:
    
    paramTypes - The parameters types specified on a method.
    
    argTypes - The class types of the arguments being passed to the method.
    
    Returns:
    
    The number of matching arguments, or -1 a parameter was found that isn't in the list of args.
  - findPublicConstructor
```
public static <T> Constructor<T> findPublicConstructor(Class<T> c,
                                                       Object... args)
```
    Finds the public constructor that can take in the specified arguments.
    
    Parameters:
    
    c - The class we're trying to construct.
    
    args - The arguments we want to pass into the constructor.
    
    Returns:
    
    The constructor, or null if a public constructor could not be found that takes in the specified arguments.
  - findPublicConstructor
```
public static <T> Constructor<T> findPublicConstructor(Class<T> c,
                                                       Class<?>... args)
```
    Finds the public constructor that can take in the specified arguments.
    
    Parameters:
    
    c - The class we're trying to construct.
    
    args - The argument types we want to pass into the constructor.
    
    Returns:
    
    The constructor, or null if a public constructor could not be found that takes in the specified arguments.
  - findPublicConstructor
```
public static <T> Constructor<T> findPublicConstructor(Class<T> c,
                                                       boolean fuzzyArgs,
                                                       Object... args)
```
    Finds the public constructor that can take in the specified arguments.
    
    Parameters:
    
    c - The class we're trying to construct.
    
    fuzzyArgs - Use fuzzy-arg matching. Find a constructor that best matches the specified args.
    
    args - The arguments we want to pass into the constructor.
    
    Returns:
    
    The constructor, or null if a public constructor could not be found that takes in the specified arguments.
  - getClasses
```
public static Class<?>[] getClasses(Object... args)
```
    Returns the class types for the specified arguments.
    
    Parameters:
    
    args - The objects we're getting the classes of.
    
    Returns:
    
    The classes of the arguments.
  - getMethodInfo
```
public static ClassUtils.MethodInfo getMethodInfo(Method m)
```
    Returns a ClassUtils.MethodInfo bean that describes the specified method.
    
    Parameters:
    
    m - The method to describe.
    
    Returns:
    
    The bean with information about the method.
  - getMethodInfo
```
public static ClassUtils.MethodInfo[] getMethodInfo(Collection<Method> m)
```
    Returns ClassUtils.MethodInfo beans that describe the specified methods.
    
    Parameters:
    
    m - The methods to describe.
    
    Returns:
    
    The beans with information about the methods.
  - newInstance
```
public static <T> T newInstance(Class<T> c,
                                Object c2)
```
    Creates an instance of the specified class.
    
    Parameters:
    
    c - The class to cast to.
    
    c2 - The class to instantiate. Can also be an instance of the class.
    
    Returns:
    
    The new class instance, or null if the class was null or is abstract or an interface.
    
    Throws:
    
    RuntimeException - if constructor could not be found or called.
  - newInstance
```
public static <T> T newInstance(Class<T> c,
                                Object c2,
                                boolean fuzzyArgs,
                                Object... args)
```
    Creates an instance of the specified class.
    
    Parameters:
    
    c - The class to cast to.
    
    c2 - The class to instantiate. Can also be an instance of the class.
    
    fuzzyArgs - Use fuzzy constructor arg matching.
    When true, constructor args can be in any order and extra args are ignored.
    No-arg constructors are also used if no other constructors are found.
    
    args - The arguments to pass to the constructor.
    
    Returns:
    
    The new class instance, or null if the class was null or is abstract or an interface.
    
    Throws:
    
    RuntimeException - if constructor could not be found or called.
  - newInstanceFromOuter
```
public static <T> T newInstanceFromOuter(Object outer,
                                         Class<T> c,
                                         Object c2,
                                         boolean fuzzyArgs,
                                         Object... args)
```
    Creates an instance of the specified class from within the context of another object.
    
    Parameters:
    
    outer - The outer object. Can be null.
    
    c - The class to cast to.
    
    c2 - The class to instantiate. Can also be an instance of the class.
    
    fuzzyArgs - Use fuzzy constructor arg matching.
    When true, constructor args can be in any order and extra args are ignored.
    No-arg constructors are also used if no other constructors are found.
    
    args - The arguments to pass to the constructor.
    
    Returns:
    
    The new class instance, or null if the class was null or is abstract or an interface.
    
    Throws:
    
    RuntimeException - if constructor could not be found or called.
  - getAllFields
```
public static Iterable<Field> getAllFields(Class c,
                                           boolean parentFirst)
```
    Returns all the fields in the specified class and all parent classes.
    Fields are ordered in either parent-to-child, or child-to-parent order, then alphabetically.
    
    Parameters:
    
    c - The class to get all fields on.
    
    parentFirst - Order them in parent-class-to-child-class order, otherwise child-class-to-parent-class order.
    
    Returns:
    
    An iterable of all fields in the specified class.
  - getAllMethods
```
public static Iterable<Method> getAllMethods(Class c,
                                             boolean parentFirst)
```
    Returns all the methods in the specified class and all parent classes.
    Methods are ordered in either parent-to-child, or child-to-parent order, then alphabetically.
    
    Parameters:
    
    c - The class to get all methods on.
    
    parentFirst - Order them in parent-class-to-child-class order, otherwise child-class-to-parent-class order.
    
    Returns:
    
    An iterable of all methods in the specified class.
  - sort
```
public static Method[] sort(Method[] m)
```
    Sorts methods in alphabetical order.
    
    Parameters:
    
    m - The methods to sort.
    
    Returns:
    
    The same array, but with elements sorted.
  - sort
```
public static Field[] sort(Field[] m)
```
    Sorts methods in alphabetical order.
    
    Parameters:
    
    m - The methods to sort.
    
    Returns:
    
    The same array, but with elements sorted.
  - getParentClasses
```
public static Iterator<Class<?>> getParentClasses(Class<?> c,
                                                  boolean parentFirst,
                                                  boolean includeInterfaces)
```
    Returns a list of all the parent classes of the specified class including the class itself.
    
    Parameters:
    
    c - The class to retrieve the parent classes.
    
    parentFirst - In parent-to-child order, otherwise child-to-parent.
    
    includeInterfaces - Include interfaces.
    
    Returns:
    
    An iterator of parent classes in the class hierarchy.
  - getPrimitiveDefault
```
public static Object getPrimitiveDefault(Class<?> primitiveClass)
```
    Returns the default value for the specified primitive class.
    
    Parameters:
    
    primitiveClass - The primitive class to get the default value for.
    
    Returns:
    
    The default value, or null if the specified class is not a primitive class.
  - toString
```
public static String toString(Method m)
```
    Returns a readable representation of the specified method.
    The format of the string is "full-qualified-class.method-name(parameter-simple-class-names)".
    
    Parameters:
    
    m - The method to stringify.
    
    Returns:
    
    The stringified method.
  - toString
```
public static String toString(Field f)
```
    Returns a readable representation of the specified field.
    The format of the string is "full-qualified-class.field-name".
    
    Parameters:
    
    f - The field to stringify.
    
    Returns:
    
    The stringified field.
  - assertArgsOfType
```
public static void assertArgsOfType(Method m,
                                    Class<?>... args)
                             throws FormattedIllegalArgumentException
```
    Throws an IllegalArgumentException if the parameters on the method are not in the specified list provided.
    
    Parameters:
    
    m - The method to test.
    
    args - The valid class types (exact) for the arguments.
    
    Throws:
    
    FormattedIllegalArgumentException - If any of the parameters on the method weren't in the list.
  - findPublicFromStringMethod
```
public static Method findPublicFromStringMethod(Class<?> c)
```
    Finds the public static "fromString" method on the specified class.
    Looks for the following method names:
    - fromString
    - fromValue
    - valueOf
    - parse
    - parseString
    - forName
    - forString
    Parameters:
    
    c - The class to find the method on.
    
    Returns:
    
    The static method, or null if it couldn't be found.
  - fromString
```
public static <T> T fromString(Class<T> c,
                               String s)
```
    Constructs a new instance of the specified class from the specified string.
    Class must be one of the following:
    - Have a public constructor that takes in a single String argument.
    - Have a static fromString(String) (or related) method.
      See findPublicFromStringMethod(Class) for the list of possible static method names.
    - Be an enum.
    Parameters:
    
    c - The class.
    
    s - The string to create the instance from.
    
    Returns:
    
    A new object instance, or null if a method for converting the string to an object could not be found.
  - toString
```
public static String toString(Object o)
```
    Converts an object to a string.
    Normally, this is just going to call toString() on the object. However, the Locale and TimeZone objects are treated special so that the returned value works with the fromString(Class, String) method.
    
    Parameters:
    
    o - The object to convert to a string.
    
    Returns:
    
    The stringified object, or null if the object was null.

Class ClassUtils

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ClassUtils

Method Detail

getReadableClassNames

getReadableClassName

getReadableClassNameForObject

getReadableClassName

Example:

getClassFromReadableName

isParentClass

isParentClass

isParentClass

getMethodSignature

getPrimitiveWrapper

getPrimitiveForWrapper

getWrapperIfPrimitive

isNotDeprecated

isNotDeprecated

isNotDeprecated

isPublic

isStatic

isAbstract

isPublic

isStatic

isPublic

getMethodAnnotation

getMethodAnnotation

findNoArgConstructor

resolveParameterType

findPublicMethod

findPublicConstructor

findConstructor

argsMatch

fuzzyArgsMatch

findPublicConstructor

findPublicConstructor

findPublicConstructor

getClasses

getMethodInfo

getMethodInfo

newInstance

newInstance

newInstanceFromOuter

getAllFields

getAllMethods

sort

sort

getParentClasses

getPrimitiveDefault

toString

toString

assertArgsOfType

findPublicFromStringMethod

fromString

toString