removed unnecessary casts

org.eclipse.xtend.ide.tests/longrunning/src/org/eclipse/xtend/ide/tests/refactoring/RenameStrategyTest.java

@@ -132,8 +132,8 @@ private <T> void sleepWhile(Predicate<T> test, Provider<T> input, long timeOutIn
 	}
 
 	@Test public void testInferredMethodRenamed() throws Exception {
-		XtendFunction fooMethod = (XtendFunction) ((XtendClass)testHelper.xtendFile("Foo", "class Foo { def Foo foo() {this} }")
-				.getXtendTypes().get(0)).getMembers().get(0);
+		XtendFunction fooMethod = (XtendFunction) testHelper.xtendFile("Foo", "class Foo { def Foo foo() {this} }")
+				.getXtendTypes().get(0).getMembers().get(0);
 		IRenameStrategy renameStrategy = createRenameStrategy(fooMethod);
 		renameStrategy.applyDeclarationChange("bar", fooMethod.eResource().getResourceSet());
 		assertEquals("bar", fooMethod.getName());
@@ -146,8 +146,8 @@ private <T> void sleepWhile(Predicate<T> test, Provider<T> input, long timeOutIn
 	}
 
 	@Test public void testXtendConstructorIgnored() throws Exception {
-		XtendConstructor constructor = (XtendConstructor) ((XtendClass)testHelper.xtendFile("Foo", "class Foo { new() {} }")
-				.getXtendTypes().get(0)).getMembers().get(0);
+		XtendConstructor constructor = (XtendConstructor) testHelper.xtendFile("Foo", "class Foo { new() {} }")
+				.getXtendTypes().get(0).getMembers().get(0);
 		IRenameStrategy renameStrategy = createRenameStrategy(constructor);
 		assertNull(renameStrategy);
 	}

org.eclipse.xtext.common.types.ui/src/org/eclipse/xtext/common/types/ui/refactoring/participant/TextChangeCombiner.java

@@ -53,7 +53,7 @@ public Change combineChanges(Change masterChange) {
 		visitCompositeChange((CompositeChange) masterChange, resource2textChange, otherChanges, editorsToSave);
 		CompositeChange compositeChange = new FilteringCompositeChange(masterChange.getName());
 		for (TextChange combinedTextChange : resource2textChange.values()) {
-			if(((MultiTextEdit) combinedTextChange.getEdit()).getChildrenSize() >0) {
+			if(combinedTextChange.getEdit().getChildrenSize() >0) {
 				if(combinedTextChange instanceof EditorDocumentChange) {
 					((EditorDocumentChange) combinedTextChange).setDoSave(editorsToSave.contains(((EditorDocumentChange) combinedTextChange).getEditor()));
 					compositeChange.add(combinedTextChange);
@@ -94,7 +94,7 @@ else if (sourceChange instanceof CompositeChange) {
 				MultiTextEdit combinedEdits = (MultiTextEdit) textChange.getEdit();
 				TextEdit newEdit = ((TextChange) sourceChange).getEdit().copy();
 				if (newEdit instanceof MultiTextEdit) {
-					for (TextEdit newTextEdit : ((MultiTextEdit) newEdit).getChildren()) {
+					for (TextEdit newTextEdit : newEdit.getChildren()) {
 						addIfNotDuplicate(combinedEdits, newTextEdit);
 					}
 				} else {

org.eclipse.xtext.ui.codetemplates.ui/src/org/eclipse/xtext/ui/codetemplates/ui/contentassist/DummyTextViewer.java

@@ -32,7 +32,6 @@
 /**
  * @author Sebastian Zarnekow - Initial contribution and API
  */
-@SuppressWarnings("deprecation")
 public class DummyTextViewer implements ITextViewer, ISelectionProvider {
 
 	private final ISelection selection;

org.eclipse.xtext.ui.codetemplates.ui/src/org/eclipse/xtext/ui/codetemplates/ui/preferences/AdvancedTemplatesPreferencePage.java

@@ -66,7 +66,7 @@ protected void updateViewerInput() {
 			TemplatePersistenceData data= (TemplatePersistenceData) selection.getFirstElement();
 			Template template= data.getTemplate();
 			String name = template.getName();
-			TemplateContextType contextType = ((ContextTypeRegistry)getContextTypeRegistry()).getContextType(template.getContextTypeId());
+			TemplateContextType contextType = getContextTypeRegistry().getContextType(template.getContextTypeId());
 			if (contextType != null) {
 				String prefix = 
 						"templates for " + grammarAccess.getGrammar().getName() +

org.eclipse.xtext.ui.codetemplates.ui/src/org/eclipse/xtext/ui/codetemplates/ui/preferences/EditTemplateDialog.java

@@ -93,7 +93,7 @@ public EditTemplateDialog(Shell parent, Template template, boolean edit, boolean
 		fIsNameModifiable= isNameModifiable;
 
 		List<String[]> contexts= Lists.newArrayList();
-		for (Iterator<TemplateContextType> it= Iterators.filter(((ContextTypeRegistry)registry).contextTypes(), TemplateContextType.class); it.hasNext();) {
+		for (Iterator<TemplateContextType> it= Iterators.filter(registry.contextTypes(), TemplateContextType.class); it.hasNext();) {
 			TemplateContextType type= it.next();
 			contexts.add(new String[] { type.getId(), type.getName() });
 		}

org.eclipse.xtext.ui.tests/tests/org/eclipse/xtext/ui/tests/editor/model/edit/AbstractTextEditComposerTest.java

@@ -156,7 +156,7 @@ protected InputStream newTestGrammar() {
 		TextEdit edit = composer.endRecording();
 
 		assertTrue(edit instanceof MultiTextEdit);
-		TextEdit[] children = ((MultiTextEdit) edit).getChildren();
+		TextEdit[] children = edit.getChildren();
 		assertEquals(2, children.length);
 		assertMatches("'bar' | 'baz'", children[0]);
 		assertMatches("Bar: 'foo' ;", children[1]);

org.eclipse.xtext.ui.tests/tests/org/eclipse/xtext/ui/tests/editor/model/edit/ChangeSerializerComposerTest.java

@@ -64,7 +64,7 @@ public void testObjectReplacement() throws Exception {
 		TextEdit edit = composer.endRecording();
 
 		assertTrue(edit instanceof MultiTextEdit);
-		TextEdit[] children = ((MultiTextEdit) edit).getChildren();
+		TextEdit[] children = edit.getChildren();
 		assertEquals(2, children.length);
 		assertMatches("'bar' | 'baz'", children[0]);
 		assertMatches("Bar: 'foo';", children[1]);

org.eclipse.xtext.ui.tests/tests/org/eclipse/xtext/ui/tests/refactoring/UpdateAcceptorTest.java

@@ -57,7 +57,7 @@ public void setUp() throws Exception {
 		assertTrue(change1.getTextEdit() instanceof MultiTextEdit);
 		assertEquals(
 				3,
-				((MultiTextEdit) change0.getTextEdit()).getChildrenSize()
-						+ ((MultiTextEdit) change1.getTextEdit()).getChildrenSize());
+				change0.getTextEdit().getChildrenSize()
+						+ change1.getTextEdit().getChildrenSize());
 	}
 }

org.eclipse.xtext.ui/deprecated/org/eclipse/xtext/ui/editor/contentassist/antlr/ParserBasedContentAssistContextFactory.java

@@ -387,7 +387,7 @@ protected boolean isLikelyToBeValidProposal(INode lastCompleteNode, Iterable<Con
 				for (AbstractElement element: context.getFirstSetGrammarElements()) {
 					if (element instanceof Keyword) {
 						String keywordValue = ((Keyword) element).getValue();
-						String lastText = ((ILeafNode) lastCompleteNode).getText();
+						String lastText = lastCompleteNode.getText();
 						if (keywordValue.equals(lastText)) 
 							return true;
 					}
@@ -678,7 +678,7 @@ public String getPrefix(INode prefixNode) {
 		public String getNodeTextUpToCompletionOffset(INode currentNode) {
 			int startOffset = currentNode.getOffset();
 			int length = completionOffset - startOffset;
-			String nodeText = ((ILeafNode) currentNode).getText();
+			String nodeText = currentNode.getText();
 			String trimmedNodeText = length > nodeText.length() ? nodeText : nodeText.substring(0, length);
 			if (viewer.getDocument() != null /* testing */ && length >= 0) {
 				try {

org.eclipse.xtext.ui/src/org/eclipse/xtext/ui/editor/embedded/EmbeddedEditorModelAccess.java

@@ -73,7 +73,7 @@ protected void setModel(XtextDocument document, String prefix, String editablePa
 				lock = new Object();
 				((ISynchronizable) document).setLockObject(lock);
 			}
-			((ISynchronizable) annotationModel).setLockObject(lock);
+			annotationModel.setLockObject(lock);
 		}
 		this.viewer.setDocument(document, annotationModel, prefix.length(), editablePart.length());
 	}

org.eclipse.xtext.ui/src/org/eclipse/xtext/ui/editor/templates/XtextTemplateContextTypeRegistry.java

@@ -74,7 +74,7 @@ protected void registerContextTypes(IGrammarAccess grammarAccess, Provider<Xtext
 		}
 		Collections.sort(allContextTypes);
 		for (XtextTemplateContextType templateContextType: allContextTypes) {
-			((ContextTypeRegistry) this).addContextType(templateContextType);
+			this.addContextType(templateContextType);
 		}
 	}
 

org.eclipse.xtext.ui/src/org/eclipse/xtext/ui/generator/trace/FileOpenerSelector.java

@@ -29,7 +29,7 @@ protected static class EditorOpenerLabelProvider extends LabelProvider {
 
 		@Override
 		public Image getImage(Object element) {
-			return (Image) resourceManager.get(((FileOpener) element).getImageDescriptor());
+			return resourceManager.get(((FileOpener) element).getImageDescriptor());
 		}
 	}
 

org.eclipse.xtext.xtext.ui.graph.tests/src/org/eclipse/xtext/xtext/ui/graph/tests/TransformationTest.java

@@ -249,7 +249,7 @@ public TreeVerificationBuilder hasChildren(int numChildren) {
 
 		public TreeVerificationBuilder child(int index) {
 			assertTrue("Index " + index + " out of bounds", currentFigure.getChildren().size() > index && index >= 0);
-			currentFigure = (IFigure) currentFigure.getChildren().get(index);
+			currentFigure = currentFigure.getChildren().get(index);
 			return this;
 		}
 

org.eclipse.xtext.xtext.ui.tests/src/org/eclipse/xtext/xtext/ui/ecore2xtext/GrammarTest.java

@@ -68,7 +68,7 @@ public class GrammarTest extends AbstractXtextTests {
 	private AbstractRule checkConcreteImplRule(Grammar grammar, String ruleName) {
 		AbstractRule concreteRule = GrammarUtil.findRuleForName(grammar, ruleName);
 		assertNotNull(concreteRule);
-		EClassifier returnType = ((ParserRule)concreteRule).getType().getClassifier();
+		EClassifier returnType = concreteRule.getType().getClassifier();
 		String returnTypeName = getClassifierName(returnType);
 		assertEquals(ruleName, returnTypeName + "_Impl");
 		List<Assignment> assignments = GrammarUtil.containedAssignments(concreteRule);

org.eclipse.xtext.xtext.ui/src/org/eclipse/xtext/xtext/ui/wizard/ecore2xtext/EPackageChooser.java

@@ -181,7 +181,7 @@ protected Iterable<IResource> findResourcesContainingGenModels() {
 				@Override
 				public boolean visit(IResource resource) throws CoreException {
 					if (resource instanceof IFile) {
-						String fileExtension = ((IFile) resource).getFileExtension();
+						String fileExtension = resource.getFileExtension();
 						if ("genmodel".equals(fileExtension) || "xcore".equals(fileExtension)) {
 							filteredResources.add(resource);
 						}