All Classes

Class	Description
Calendar
ClassLoader	This stripped down ClassLoader class is simply here to give us cross-platform support for code that might need a valid classloader.
ClassNotFoundException
Collator
Format	only a dummy for gwt compiler
GregorianCalendar
IDN
IllegalAccessException	An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor.
InvocationTargetException	InvocationTargetException is a checked exception that wraps an exception thrown by an invoked method or constructor.
MalformedURLException	Thrown to indicate that a malformed URL has occurred.
Normalizer	This class provides the method normalize which transforms Unicode text into an equivalent composed or decomposed form, allowing for easier sorting and searching of text.
Normalizer.Form	This enum provides constants of the four Unicode normalization forms that are described in Unicode Standard Annex #15 — Unicode Normalization Forms and two methods to access them.
NoSuchMethodException	Thrown when a particular method cannot be found.
OutOfMemoryError	Thrown when the Java Virtual Machine cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector.
ReflectiveOperationException	Common superclass of exceptions thrown by reflective operations in core reflection.
SecureRandom
SocketException
ThreadLocalRandom
UndeclaredThrowableException	Thrown by a method invocation on a proxy instance if its invocation handler's invoke method throws a checked exception (a Throwable that is not assignable to RuntimeException or Error) that is not assignable to any of the exception types declared in the throws clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.
UnknownHostException
UnknownServiceException
URI
URISyntaxException	Checked exception thrown to indicate that a string could not be parsed as a URI reference.
URL	A stripped-down URL suitable for use in GWT client-side.
URLClassLoader	This stripped down URLClassLoader class is simply here to give us cross-platform support for code that might need a valid classloader.
URLConnection
VirtualMachineError	Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating.
WeakHashMap<K,V>