add support for Exception in class diagram

skin/plantuml.skin

@@ -205,6 +205,9 @@ spot {
   spotEntity {
     BackgroundColor #ADD1B2
   }
+  spotException {
+	BackgroundColor #D94321
+  }
 }
 
 
@@ -551,6 +554,9 @@ spot {
   spotEntity {
     BackgroundColor #2E5233
   }
+  spotException {
+	BackgroundColor #7D0000
+  }
 }
 
 

src/net/sourceforge/plantuml/classdiagram/command/CommandCreateClass.java

@@ -80,7 +80,7 @@ public class CommandCreateClass extends SingleLineCommand2<ClassDiagram> {
 	private static IRegex getRegexConcat() {
 		return RegexConcat.build(CommandCreateClass.class.getName(), RegexLeaf.start(), //
 				new RegexLeaf("TYPE", //
-						"(interface|enum|annotation|abstract[%s]+class|abstract|class|entity|circle|diamond|protocol|struct)"), //
+						"(interface|enum|annotation|abstract[%s]+class|abstract|class|entity|circle|diamond|protocol|struct|exception)"), //
 				RegexLeaf.spaceOneOrMore(), //
 				new RegexOr(//
 						new RegexConcat(//

src/net/sourceforge/plantuml/classdiagram/command/CommandCreateClassMultilines.java

@@ -93,7 +93,7 @@ public class CommandCreateClassMultilines extends CommandMultilines2<ClassDiagra
 		return RegexConcat.build(CommandCreateClassMultilines.class.getName(), RegexLeaf.start(), //
 				new RegexLeaf("VISIBILITY", "(" + VisibilityModifier.regexForVisibilityCharacterInClassName() + ")?"), //
 				new RegexLeaf("TYPE",
-						"(interface|enum|annotation|abstract[%s]+class|abstract|class|entity|protocol|struct)"), //
+						"(interface|enum|annotation|abstract[%s]+class|abstract|class|entity|protocol|struct|exception)"), //
 				RegexLeaf.spaceOneOrMore(), //
 				new RegexOr(//
 						new RegexConcat(//

src/net/sourceforge/plantuml/classdiagram/command/CommandHideShowByGender.java

@@ -131,6 +131,8 @@ public class CommandHideShowByGender extends SingleLineCommand2<UmlDiagram> {
 			gender = EntityGenderUtils.byEntityType(LeafType.ABSTRACT_CLASS);
 		} else if (arg1.equalsIgnoreCase("annotation")) {
 			gender = EntityGenderUtils.byEntityType(LeafType.ANNOTATION);
+		} else if (arg1.equalsIgnoreCase("exception")) {
+			gender = EntityGenderUtils.byEntityType(LeafType.EXCEPTION);
 		} else if (arg1.startsWith("<<")) {
 			gender = EntityGenderUtils.byStereotype(arg1);
 		} else {
@@ -167,6 +169,8 @@ public class CommandHideShowByGender extends SingleLineCommand2<UmlDiagram> {
 			gender = EntityGenderUtils.byEntityType(LeafType.PROTOCOL);
 		} else if (arg1.equalsIgnoreCase("struct")) {
 			gender = EntityGenderUtils.byEntityType(LeafType.STRUCT);
+		} else if (arg1.equalsIgnoreCase("exception")) {
+			gender = EntityGenderUtils.byEntityType(LeafType.EXCEPTION);
 		} else if (arg1.startsWith("<<")) {
 			gender = EntityGenderUtils.byStereotype(arg1);
 		} else {

src/net/sourceforge/plantuml/classdiagram/command/CommandLinkLollipop.java

@@ -95,7 +95,7 @@ final public class CommandLinkLollipop extends SingleLineCommand2<AbstractClassO
 
 	private static String optionalKeywords(UmlDiagramType type) {
 		if (type == UmlDiagramType.CLASS) {
-			return "(interface|enum|annotation|abstract[%s]+class|abstract|class|entity|protocol|struct)";
+			return "(interface|enum|annotation|abstract[%s]+class|abstract|class|entity|protocol|struct|exception)";
 		}
 		if (type == UmlDiagramType.OBJECT) {
 			return "(object)";

src/net/sourceforge/plantuml/cucadiagram/LeafType.java

@@ -44,6 +44,7 @@ public enum LeafType {
 
 	ABSTRACT_CLASS, CLASS, INTERFACE, ANNOTATION,
 	PROTOCOL, STRUCT,
+	EXCEPTION,
 	LOLLIPOP_FULL, LOLLIPOP_HALF, NOTE, TIPS, OBJECT, MAP, JSON, ASSOCIATION,
 	ENUM, CIRCLE,
 
@@ -78,8 +79,8 @@ public enum LeafType {
 
 	public boolean isLikeClass() {
 		return this == LeafType.ANNOTATION || this == LeafType.ABSTRACT_CLASS || this == LeafType.CLASS
-				|| this == LeafType.INTERFACE || this == LeafType.ENUM || this == LeafType.ENTITY
+				|| this == LeafType.INTERFACE || this == LeafType.ENUM   || this == LeafType.ENTITY
-				|| this == LeafType.PROTOCOL  || this == LeafType.STRUCT;
+				|| this == LeafType.PROTOCOL  || this == LeafType.STRUCT || this == LeafType.EXCEPTION;
 	}
 
 	public String toHtml() {

src/net/sourceforge/plantuml/style/SName.java

@@ -143,6 +143,7 @@ public enum SName {
 	spotProtocol, //
 	spotStruct, //
 	spotEntity, //
+	spotException, //
 	spotClass, //
 	spotAbstractClass, //
 

src/net/sourceforge/plantuml/svek/image/EntityImageClassHeader.java

@@ -198,6 +198,8 @@ public class EntityImageClassHeader extends AbstractEntityImage {
 			return StyleSignatureBasic.of(SName.root, SName.element, SName.spot, SName.spotProtocol);
 		case STRUCT:
 			return StyleSignatureBasic.of(SName.root, SName.element, SName.spot, SName.spotStruct);
+		case EXCEPTION:
+			return StyleSignatureBasic.of(SName.root, SName.element, SName.spot, SName.spotException);
 		}
 		throw new IllegalStateException();
 	}
@@ -220,6 +222,8 @@ public class EntityImageClassHeader extends AbstractEntityImage {
 			return 'P';
 		case STRUCT:
 			return 'S';
+		case EXCEPTION:
+			return 'X';
 		}
 		assert false;
 		return '?';