| Name | Package | Description |
| AnalyzerException | org.drools.asm.tree.analysis | Thrown if a problem occurs during the analysis of a method. |
| CheckedDroolsException | org.drools | Base RuntimeExceptiondrools Logic Engine exception. |
| ConsequenceException | org.drools.spi | Indicates an error during a Consequence invocation. |
| DecisionTableParseException | org.drools.decisiontable.parser | No description provided. |
| DroolsParserException | org.drools.compiler | No description provided. |
| DuplicateRuleNameException | org.drools.rule | Indicates an attempt to add a Rule to a Package
that already contains a Rule with the same name. |
| ExpanderException | org.drools.lang | No description provided. |
| FactException | org.drools | Base exception indicating an error in manipulating facts. |
| GeneralParseException | org.drools.lang | No description provided. |
| IntegrationException | org.drools | No description provided. |
| InvalidPatternException | org.drools.rule | No description provided. |
| InvalidRuleException | org.drools.rule | Indicates an error regarding the semantic validity of a rule. |
| InvalidRulePackage | org.drools.rule | This exception is thrown when an invalid package (ie one that has errors)
it attempted to be added to a RuleBase. |
| NoConsequenceException | org.drools.rule | Validity exception indicating that a Rule does not contain a
Consequences. |
| NoSuchFactHandleException | org.drools | Indicates an attempt to retract, modify or retrieve a fact object that is no
longer present. |
| NoSuchFactObjectException | org.drools | Indicates an attempt to retract, modify or retrieve a fact object that is no
longer present. |
| PackageBuilder.MissingPackageNameException | org.drools.compiler | No description provided. |
| PackageIntegrationException | org.drools | Indicates an error integrating a Package into a
RuleBase. |
| ParseException | org.drools.lang | No description provided. |
| RuleConstructionException | org.drools.rule | Base exception for errors during Rule construction. |
| RuleIntegrationException | org.drools | Indicates an error integrating a Rule or Package
into a RuleBase. |
| RuntimeDroolsException | org.drools | The base Drools exception for all internal thrown exceptions. |