Package com.mastfrog.util.preconditions

Class Exceptions

java.lang.Object

com.mastfrog.util.preconditions.Exceptions

public final class Exceptions
extends Object

Simple utilities for dealing with exceptions.

Author:

Tim Boudreau

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Exceptions.ExceptionHandler	Service provider which logs exceptions; the default implementation uses the JDK's logger.

Method Summary

Modifier and Type	Method	Description
static <T extends Throwable> void	chuck(Class<T> type, Throwable t)
static <ReturnType> ReturnType	chuck(Throwable t)	Dirty trick to rethrow a checked exception.
static <ReturnType> ReturnType	chuckOriginal(Throwable t)	Unwinds any causing-exception and chucks the root cause throwable.
static <ReturnType> ReturnType	chuckUnless(Throwable t, ReturnType what, BooleanSupplier predicate)
static void	printStackTrace(Class<?> caller, String msg, Throwable t)
static void	printStackTrace(Class<?> caller, Throwable t)
static void	printStackTrace(String msg, Throwable t)
static void	printStackTrace(Throwable t)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

printStackTrace

public static void printStackTrace(String msg,
 Throwable t)

printStackTrace

public static void printStackTrace(Class<?> caller,
 String msg,
 Throwable t)

printStackTrace

public static void printStackTrace(Class<?> caller,
 Throwable t)

printStackTrace

public static void printStackTrace(Throwable t)

chuck

public static <ReturnType> ReturnType chuck(Throwable t)

Dirty trick to rethrow a checked exception. Makes it possible to implement an interface such as Iterable (which cannot throw exceptions) without the useless re-wrapping of exceptions in RuntimeException.

Parameters:

t - A throwable. This method will throw it without requiring a catch block.

chuck

public static <T extends Throwable> void chuck(Class<T> type,
 Throwable t)
                                        throws T

Throws:

T extends Throwable

chuckUnless

public static <ReturnType> ReturnType chuckUnless(Throwable t,
 ReturnType what,
 BooleanSupplier predicate)

chuckOriginal

public static <ReturnType> ReturnType chuckOriginal(Throwable t)

Unwinds any causing-exception and chucks the root cause throwable.

Type Parameters:

ReturnType - The type to pretend to return (this method always exits abnormally), so methods can be written cleanly, e.g. return Exceptions.chuck(someException).

Parameters:

t -

Returns: