EnumConstantNotPresentException

AI-generated Key Takeaways

• EnumConstantNotPresentException is thrown when an application tries to access an enum constant by name that does not exist within the enum type.

• This exception is a subclass of RuntimeException and can be thrown by reflection APIs, such as when reading annotations.

• It provides methods to retrieve the name (constantName()) and type (enumType()) of the missing enum constant.

• The exception is constructed with the enum type and the name of the missing constant.

public class EnumConstantNotPresentException extends RuntimeException

Thrown when an application tries to access an enum constant by name and the enum type contains no constant with the specified name. This exception can be thrown by the {@linkplain java.lang.reflect.AnnotatedElement API used to read annotations reflectively}.

See Also

• AnnotatedElement

Public Constructor Summary

EnumConstantNotPresentException(Class<? extends Enum> enumType, String constantName) Constructs an EnumConstantNotPresentException for the specified constant.

Public Method Summary

String	constantName() Returns the name of the missing enum constant.
Class<? extends Enum>	enumType() Returns the type of the missing enum constant.

Inherited Method Summary

From class java.lang.Throwable

synchronized final void	addSuppressed(Throwable exception) Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.
synchronized Throwable	fillInStackTrace() Fills in the execution stack trace.
synchronized Throwable	getCause() Returns the cause of this throwable or null if the cause is nonexistent or unknown.
String	getLocalizedMessage() Creates a localized description of this throwable.
String	getMessage() Returns the detail message string of this throwable.
StackTraceElement[]	getStackTrace() Provides programmatic access to the stack trace information printed by printStackTrace().
synchronized final Throwable[]	getSuppressed() Returns an array containing all of the exceptions that were suppressed, typically by the try-with-resources statement, in order to deliver this exception.
synchronized Throwable	initCause(Throwable cause) Initializes the cause of this throwable to the specified value.
void	printStackTrace() Prints this throwable and its backtrace to the standard error stream.
void	printStackTrace(PrintWriter s) Prints this throwable and its backtrace to the specified print writer.
void	printStackTrace(PrintStream s) Prints this throwable and its backtrace to the specified print stream.
void	setStackTrace(StackTraceElement[] stackTrace) Sets the stack trace elements that will be returned by getStackTrace() and printed by printStackTrace() and related methods.
String	toString() Returns a short description of this throwable.

From class java.lang.Object

Object	clone() Creates and returns a copy of this Object.
boolean	equals(Object obj) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of Class that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long timeout, int nanos) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait(long timeout) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

Public Constructors

public EnumConstantNotPresentException (Class<? extends Enum> enumType, String constantName)

Constructs an EnumConstantNotPresentException for the specified constant.

Parameters

enumType	the type of the missing enum constant
constantName	the name of the missing enum constant

Public Methods

public String constantName ()

Returns the name of the missing enum constant.

Returns

• the name of the missing enum constant

public Class<? extends Enum> enumType ()

Returns the type of the missing enum constant.

Returns

• the type of the missing enum constant