Add Organize Imports as a clean up.

Signed-off-by: Roland Grunberg <[email protected]>

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/cleanup/CleanUpRegistry.java

@@ -50,6 +50,7 @@ public CleanUpRegistry() {
 		cleanUpsList.add(new InstanceofPatternMatch());
 		cleanUpsList.add(new LambdaExpressionCleanup());
 		cleanUpsList.add(new TryWithResourceCleanUp());
+		cleanUpsList.add(new OrganizeImportsCleanup());
 
 		// Store in a Map so that they can be accessed by ID quickly
 		cleanUps = new HashMap<>();

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/cleanup/OrganizeImportsCleanup.java

@@ -0,0 +1,69 @@
+/*******************************************************************************
+ * Copyright (c) 2023 Red Hat Inc. and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-2.0
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Red Hat Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.ls.core.internal.cleanup;
+
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jdt.core.dom.CompilationUnit;
+import org.eclipse.jdt.core.manipulation.CleanUpContextCore;
+import org.eclipse.jdt.core.manipulation.ICleanUpFixCore;
+import org.eclipse.jdt.core.manipulation.OrganizeImportsOperation;
+import org.eclipse.jdt.core.refactoring.CompilationUnitChange;
+import org.eclipse.text.edits.TextEdit;
+
+public class OrganizeImportsCleanup implements ISimpleCleanUp {
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.ls.core.internal.cleanup.ISimpleCleanUp#getIdentifier()
+	 */
+	@Override
+	public String getIdentifier() {
+		return "organizeImports";
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.ls.core.internal.cleanup.ISimpleCleanUp#createFix(org.eclipse.jdt.core.manipulation.CleanUpContextCore)
+	 */
+	@Override
+	public ICleanUpFixCore createFix(CleanUpContextCore context) throws CoreException {
+		CompilationUnit unit = context.getAST();
+		if (unit == null) {
+			return null;
+		}
+		OrganizeImportsOperation op = new OrganizeImportsOperation(context.getCompilationUnit(), unit,
+				false, false, true,
+				null,
+				false);
+		TextEdit te = op.createTextEdit(null);
+		return new ICleanUpFixCore() {
+			@Override
+			public CompilationUnitChange createChange(IProgressMonitor progressMonitor) throws CoreException {
+				CompilationUnitChange change = new CompilationUnitChange("", context.getCompilationUnit());
+				change.setEdit(te);
+				return change;
+			}
+		};
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.jdt.ls.core.internal.cleanup.ISimpleCleanUp#getRequiredCompilerMarkers()
+	 */
+	@Override
+	public List<String> getRequiredCompilerMarkers() {
+		return Collections.emptyList();
+	}
+
+}