| Name | Package | Description |
| AnnotatedLSTNode.NonRegularLoopException | org.jikesrvm.compilers.opt.controlflow | Exception thrown when a non-regular loop is encountered |
| MagicNotImplementedException | org.jikesrvm.compilers.opt | Use this exception when the opt compiler attempts to
compile an unsupported magic. |
| OperationNotImplementedException | org.jikesrvm.compilers.opt | Use this exception when the opt compiler attempts to
compile/optimize a method containing a currently
unsupported (but expected) operation. |
| OptimizingCompilerException | org.jikesrvm.compilers.opt | Use this exception if we encounter a runtime error in the dynamic
optimizing compiler. |
| OptimizingCompilerException.IllegalUpcast | org.jikesrvm.compilers.opt | Capture illegal upcasts from magic types to java.lang.Object |
| TimeoutException | org.jikesrvm.runtime | Exception to indicate that a blocking call has timed out. |