THE PACKAGE JAVA.LANG

java.lang.Throwable

 and its Subclasses

20.22

20.22 The Class

java.lang.Throwable

 and its Subclasses

The

throw

 statement ( 14.16) is permitted to throw only instances of the class

Throwable

 and its subclasses. Instances of two subclasses,

Error

 and

Excep 

tion

, are conventionally used to indicate that exceptional situations have

occurred. Typically, these instances are freshly created in the context of the excep 

tional situation so as to include relevant information (such as stack trace data).

The following list shows the hierarchical relationships of all the exception

classes predefined in package

java.lang

 by the Java language:

Throwable

Error

LinkageError

ClassCircularityError

ClassFormatError

ExceptionInInitializerError

IncompatibleClassChangeError

AbstractMethodError

IllegalAccessError

InstantiationError

NoSuchFieldError

NoSuchMethodError

NoClassDefFoundError

UnsatisfiedLinkError

VerifyError

VirtualMachineError

InternalError

OutOfMemoryError

StackOverflowError

UnknownError

ThreadDeath

Exception

ClassNotFoundException

CloneNotSupportedException

IllegalAccessException

InstantiationException

InterruptedException

RuntimeException

ArithmeticException

ArrayStoreException

ClassCastException

IllegalArgumentException

IllegalThreadStateException

NumberFormatException

IllegalMonitorStateException

IndexOutOfBoundsException

NegativeArraySizeException

NullPointerException

SecurityException

611