| Name | Package | Description |
| AbortException | wicket | Immediately aborts any further processing. |
| AbortWithHttpStatusException | wicket | Causes Wicket to abort processing and set the specified HTTP status code. |
| AbstractRestartResponseException | wicket | An exception that causes the request cycle to immediately switch to respond
stage. |
| AuthorizationException | wicket.authorization | Base class for exceptions thrown as a result of authorization failure. |
| ConversionException | wicket.util.convert | Thrown for conversion exceptions. |
| FileUploadBase.InvalidContentTypeException | wicket.util.upload | Thrown to indicate that the request is not a multipart request. |
| FileUploadBase.SizeLimitExceededException | wicket.util.upload | Thrown to indicate that the request size exceeds the configured maximum. |
| FileUploadBase.UnknownSizeException | wicket.util.upload | Thrown to indicate that the request size is not specified. |
| FileUploadException | wicket.util.upload | Exception for errors encountered while processing the request. |
| GroupAlreadyBoundException | wicket.util.parse.metapattern | Thrown if an attempt is made to re-bind a Group to a second capturing group
or MetaPattern. |
| GroupNotBoundException | wicket.util.parse.metapattern | Thrown if a group is not bound. |
| MarkupException | wicket.markup | Runtime exception that is thrown when markup parsing fails. |
| MarkupNotFoundException | wicket.markup | Runtime exception that is thrown when markup file was not found. |
| MultipartFormInputStream.IllegalBoundaryException | wicket.util.upload | Thrown upon attempt of setting an invalid boundary token. |
| MultipartFormInputStream.MalformedStreamException | wicket.util.upload | Thrown to indicate that the input stream fails to follow the required
syntax. |
| ResourceStreamNotFoundException | wicket.util.resource | Thrown if a required resource cannot be found. |
| RestartResponseAtInterceptPageException | wicket | Causes Wicket to interrupt current request processing and immediately
redirect to an intercept page. |
| RestartResponseException | wicket | Causes wicket to interrupt current request processing and immediately respond
with the specified page. |
| StringValueConversionException | wicket.util.string | Thrown when a string value cannot be converted to some type. |
| UnauthorizedActionException | wicket.authorization | Exception that is thrown when an action is not authorized. |
| UnauthorizedInstantiationException | wicket.authorization | Exception that is thrown when the creation of a component is not allowed. |
| WebApplicationFactoryCreationException | wicket.protocol.http | Thrown when the IWebApplicationFactory could not
be created for some reason. |
| WicketRuntimeException | wicket | Generic runtime exception subclass thrown by Wicket. |