Module java.base
Package java.lang

Class Exception

java.lang.Object
java.lang.Throwable
java.lang.Exception
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
AbsentInformationException, ActivationException, AgentInitializationException, AgentLoadException, AlreadyBoundException, AttachNotSupportedException, AWTException, BackingStoreException, BadAttributeValueExpException, BadBinaryOpValueExpException, BadLocationException, BadStringOperationException, BrokenBarrierException, CardException, CertificateException, ClassNotLoadedException, CloneNotSupportedException, DataFormatException, DatatypeConfigurationException, DestroyFailedException, ExecutionControl.ExecutionControlException, ExecutionException, ExpandVetoException, FontFormatException, GeneralSecurityException, GSSException, IllegalClassFormatException, IllegalConnectorArgumentsException, IncompatibleThreadStateException, InterruptedException, IntrospectionException, InvalidApplicationException, InvalidMidiDataException, InvalidPreferencesFormatException, InvalidTargetObjectTypeException, InvalidTypeException, InvocationException, IOException, JMException, JShellException, KeySelectorException, LambdaConversionException, LineUnavailableException, MarshalException, MidiUnavailableException, MimeTypeParseException, NamingException, NoninvertibleTransformException, NotBoundException, ParseException, ParserConfigurationException, PrinterException, PrintException, PrivilegedActionException, PropertyVetoException, ReflectiveOperationException, RefreshFailedException, RuntimeException, SAXException, ScriptException, ServerNotActiveException, SQLException, StringConcatException, TimeoutException, TooManyListenersException, TransformerException, TransformException, UnmodifiableClassException, UnsupportedAudioFileException, UnsupportedCallbackException, UnsupportedFlavorException, UnsupportedLookAndFeelException, URIReferenceException, URISyntaxException, VMStartException, XAException, XMLParseException, XMLSignatureException, XMLStreamException, XPathException
public class Exception extends Throwable
The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch.

The class Exception and any subclasses that are not also subclasses of RuntimeException are checked exceptions. Checked exceptions need to be declared in a method or constructor's throws clause if they can be thrown by the execution of the method or constructor and propagate outside the method or constructor boundary.

See Java Language Specification:
11.2 Compile-Time Checking of Exceptions
Since:
1.0
See Also:
Error, Serialized Form

  • Constructor Details

    • Exception

      public Exception()
      Constructs a new exception with null as its detail message. The cause is not initialized, and may subsequently be initialized by a call to Throwable.initCause(java.lang.Throwable).

    • Exception

      public Exception​(String message)
      Constructs a new exception with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call to Throwable.initCause(java.lang.Throwable).
      Parameters:
      message - the detail message. The detail message is saved for later retrieval by the Throwable.getMessage() method.

    • Exception

      public Exception​(String message, Throwable cause)
      Constructs a new exception with the specified detail message and cause.

      Note that the detail message associated with cause is not automatically incorporated in this exception's detail message.

      Parameters:
      message - the detail message (which is saved for later retrieval by the Throwable.getMessage() method).
      cause - the cause (which is saved for later retrieval by the Throwable.getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
      Since:
      1.4

    • Exception

      public Exception​(Throwable cause)
      Constructs a new exception with the specified cause and a detail message of (cause==null ? null : cause.toString()) (which typically contains the class and detail message of cause). This constructor is useful for exceptions that are little more than wrappers for other throwables (for example, PrivilegedActionException).
      Parameters:
      cause - the cause (which is saved for later retrieval by the Throwable.getCause() method). (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
      Since:
      1.4

    • Exception

      protected Exception​(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace)
      Constructs a new exception with the specified detail message, cause, suppression enabled or disabled, and writable stack trace enabled or disabled.
      Parameters:
      message - the detail message.
      cause - the cause. (A null value is permitted, and indicates that the cause is nonexistent or unknown.)
      enableSuppression - whether or not suppression is enabled or disabled
      writableStackTrace - whether or not the stack trace should be writable
      Since:
      1.7