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See:
Description
| Class Summary | |
|---|---|
| MessageGenericCode | Defines known Perforce error message generic codes. |
| MessageSeverityCode | Defines known Perforce error severity codes. |
| MessageSubsystemCode | Defines known Perforce message error subsystem codes as returned from the P4Java message and exception system. |
| Enum Summary | |
|---|---|
| TrustException.Type | |
| Exception Summary | |
|---|---|
| AccessException | Exception thrown by P4Java methods when access to data or services has been denied by the Perforce server. |
| ConfigException | Exception class for P4Java configuration-related exceptions. |
| ConnectionException | Superclass for all P4Java connection-related exceptions. |
| ConnectionNotConnectedException | Special subclass of ConnectionException to signal the case of attempting to issue a Perforce server command with an IServer that hasn't been explicitly connected to that Perforce server. |
| FileDecoderException | Exception class for P4Java file decoding exceptions. |
| FileEncoderException | Exception class for P4Java file encoding exceptions. |
| NoSuchObjectException | Exception class to use to signal missing objects within p4java; this is not used for missing objects on the Perforce server side. |
| OptionsException | A P4Java extension used to signal to participating users that an error occurred in Options object processing. |
| P4JavaException | Superclass for all P4Java-generated exceptions. |
| RequestException | An exception to be used to signal that the Perforce server has detected an error in processing or fielding a request. |
| ResourceException | Exception superclass for all P4Java resource-related exceptions. |
| TrustException | Special subclass of ConnectionException to signal the case of attempting to establish trust for a SSL connection to the Perforce server. |
| Error Summary | |
|---|---|
| ClientError | Signals a serious and probably unrecoverable client error in an underlying transport layer. |
| NullPointerError | Error class used to signal null pointers. |
| P4JavaError | Class intended to be used to signal unrecoverable errors that a client or other package should probably not handle or that signal serious errors without known fixes. |
| ProtocolError | Signals a serious and probably unrecoverable protocol error in an underlying transport layer. |
| UnimplementedError | Error class used to signal an unimplemented feature or method. |
Provides exception and error classes for signaling and handling user, internal, and Perforce server errors.
P4Java uses a fairly standard set of extensions to java.lang.Exception to signal recoverable errors, but it also uses extensions to java.lang.Error to signal unrecoverable errors that it's detected itself (such as null pointers or out-of-range values). Since they're defined as extensions to Error, they're not typically declared in method "throws" clauses, which means users are free to ignore them in the same way that they can ignore non-P4Java Error throwables.
However, if you wish to keep control in the face of all possible errors, it's probably a good idea to keep an outer catch block for P4JError catching as well as other exceptions and throwables — P4Java does not throw such errors lightly, only for conditions that show a serious programming error (either internally or by the user).
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