Use LSP4J 0.20.0

* Bump versions & adopt new APIs (eg remap globPatterns to String)
* Remove custom inlayHints, use standard
* Declare null notebook service

org.eclipse.jdt.ls.core/META-INF/MANIFEST.MF

@@ -25,8 +25,8 @@ Require-Bundle: org.eclipse.core.runtime;bundle-version="3.12.0",
  org.eclipse.jdt.core.manipulation;bundle-version="1.8.0",
  com.google.gson;bundle-version="2.7.0",
  org.apache.commons.lang3;bundle-version="3.1.0",
- org.eclipse.lsp4j;bundle-version="[0.12.0,0.13.0)",
- org.eclipse.lsp4j.jsonrpc;bundle-version="[0.12.0,0.13.0)",
+ org.eclipse.lsp4j;bundle-version="[0.20.0.0,0.21.0)",
+ org.eclipse.lsp4j.jsonrpc;bundle-version="[0.20.0,0.21.0)",
  org.eclipse.xtext.xbase.lib,
  org.eclipse.core.filesystem;bundle-version="1.7.0",
  org.eclipse.jdt.apt.pluggable.core;bundle-version="1.2.0";resolution:=optional,

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/JavaClientConnection.java

@@ -20,7 +20,6 @@
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
 
-import org.eclipse.jdt.ls.core.internal.JavaLanguageServerPlugin;
 import org.eclipse.jdt.ls.core.internal.handlers.LogHandler;
 import org.eclipse.jdt.ls.core.internal.lsp.ExecuteCommandProposedClient;
 import org.eclipse.lsp4j.ApplyWorkspaceEditParams;
@@ -37,7 +36,6 @@
 import org.eclipse.lsp4j.UnregistrationParams;
 import org.eclipse.lsp4j.WorkspaceEdit;
 import org.eclipse.lsp4j.jsonrpc.services.JsonNotification;
-import org.eclipse.lsp4j.jsonrpc.services.JsonRequest;
 import org.eclipse.lsp4j.services.LanguageClient;
 
 import com.google.common.collect.ImmutableList;
@@ -76,12 +74,6 @@ public interface JavaLanguageClient extends LanguageClient, ExecuteCommandPropos
 		@JsonNotification("language/progressReport")
 		void sendProgressReport(ProgressReport report);
 
-		// TODO : remove this method when LSP4J will provide InlayHint support. See
-		// https://github.com/eclipse/lsp4j/issues/570
-		@JsonRequest("workspace/inlayHint/refresh")
-		default CompletableFuture<Void> refreshInlayHints() {
-			throw new UnsupportedOperationException();
-		}
 	}
 
 	private final LogHandler logHandler;

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/handlers/InlayHintVisitor.java

@@ -40,9 +40,9 @@
 import org.eclipse.jdt.core.dom.TypeLiteral;
 import org.eclipse.jdt.ls.core.internal.JavaLanguageServerPlugin;
 import org.eclipse.jdt.ls.core.internal.preferences.PreferenceManager;
+import org.eclipse.lsp4j.InlayHint;
 import org.eclipse.lsp4j.Position;
 import org.eclipse.lsp4j.jsonrpc.messages.Either;
-import org.eclipse.lsp4j.proposed.InlayHint;
 
 import com.google.common.base.Objects;
 

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/handlers/InlayHintsHandler.java

@@ -26,8 +26,8 @@
 import org.eclipse.jdt.ls.core.internal.JavaLanguageServerPlugin;
 import org.eclipse.jdt.ls.core.internal.JobHelpers;
 import org.eclipse.jdt.ls.core.internal.preferences.PreferenceManager;
-import org.eclipse.lsp4j.proposed.InlayHint;
-import org.eclipse.lsp4j.proposed.InlayHintParams;
+import org.eclipse.lsp4j.InlayHint;
+import org.eclipse.lsp4j.InlayHintParams;
 
 public class InlayHintsHandler {
 

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/handlers/JDTLanguageServer.java

@@ -119,8 +119,11 @@
 import org.eclipse.lsp4j.InitializeParams;
 import org.eclipse.lsp4j.InitializeResult;
 import org.eclipse.lsp4j.InitializedParams;
+import org.eclipse.lsp4j.InlayHint;
+import org.eclipse.lsp4j.InlayHintParams;
 import org.eclipse.lsp4j.Location;
 import org.eclipse.lsp4j.LocationLink;
+import org.eclipse.lsp4j.PrepareRenameDefaultBehavior;
 import org.eclipse.lsp4j.PrepareRenameParams;
 import org.eclipse.lsp4j.PrepareRenameResult;
 import org.eclipse.lsp4j.Range;
@@ -139,16 +142,16 @@
 import org.eclipse.lsp4j.TypeDefinitionParams;
 import org.eclipse.lsp4j.WillSaveTextDocumentParams;
 import org.eclipse.lsp4j.WorkspaceEdit;
+import org.eclipse.lsp4j.WorkspaceSymbol;
 import org.eclipse.lsp4j.WorkspaceSymbolParams;
 import org.eclipse.lsp4j.extended.ProjectBuildParams;
 import org.eclipse.lsp4j.extended.ProjectConfigurationsUpdateParam;
 import org.eclipse.lsp4j.jsonrpc.CompletableFutures;
 import org.eclipse.lsp4j.jsonrpc.messages.Either;
+import org.eclipse.lsp4j.jsonrpc.messages.Either3;
 import org.eclipse.lsp4j.jsonrpc.services.JsonDelegate;
-import org.eclipse.lsp4j.proposed.InlayHint;
-import org.eclipse.lsp4j.proposed.InlayHintParams;
-import org.eclipse.lsp4j.proposed.InlayHintProvider;
 import org.eclipse.lsp4j.services.LanguageServer;
+import org.eclipse.lsp4j.services.NotebookDocumentService;
 import org.eclipse.lsp4j.services.TextDocumentService;
 import org.eclipse.lsp4j.services.WorkspaceService;
 
@@ -157,7 +160,7 @@
  *
  */
 public class JDTLanguageServer extends BaseJDTLanguageServer implements LanguageServer, TextDocumentService, WorkspaceService,
-		JavaProtocolExtensions, InlayHintProvider {
+		JavaProtocolExtensions {
 
 	public static final String JAVA_LSP_JOIN_ON_COMPLETION = "java.lsp.joinOnCompletion";
 	public static final String JAVA_LSP_INITIALIZE_WORKSPACE = "java.lsp.initializeWorkspace";
@@ -482,10 +485,10 @@ public JavaProtocolExtensions getJavaExtensions() {
 	 * @see org.eclipse.lsp4j.services.WorkspaceService#symbol(org.eclipse.lsp4j.WorkspaceSymbolParams)
 	 */
 	@Override
-	public CompletableFuture<List<? extends SymbolInformation>> symbol(WorkspaceSymbolParams params) {
+	public CompletableFuture<Either<List<? extends SymbolInformation>, List<? extends WorkspaceSymbol>>> symbol(WorkspaceSymbolParams params) {
 		logInfo(">> workspace/symbol");
 		return computeAsync((monitor) -> {
-			return WorkspaceSymbolHandler.search(params.getQuery(), monitor);
+			return Either.forLeft(WorkspaceSymbolHandler.search(params.getQuery(), monitor));
 		});
 	}
 
@@ -788,12 +791,12 @@ public CompletableFuture<List<? extends TextEdit>> onTypeFormatting(DocumentOnTy
 	 * @see org.eclipse.lsp4j.services.TextDocumentService#prepareRename(org.eclipse.lsp4j.PrepareRenameParams)
 	 */
 	@Override
-	public CompletableFuture<Either<Range, PrepareRenameResult>> prepareRename(PrepareRenameParams params) {
+	public CompletableFuture<Either3<Range, PrepareRenameResult, PrepareRenameDefaultBehavior>> prepareRename(PrepareRenameParams params) {
 		logInfo(">> document/prepareRename");
 		PrepareRenameHandler handler = new PrepareRenameHandler(preferenceManager);
 		return computeAsync((monitor) -> {
 			waitForLifecycleJobs(monitor);
-			return handler.prepareRename(params, monitor);
+			return Either3.forLeft3(handler.prepareRename(params, monitor));
 		});
 	}
 
@@ -1112,4 +1115,11 @@ private void waitForLifecycleJobs(IProgressMonitor monitor) {
 		JobHelpers.waitForJobs(DocumentLifeCycleHandler.DOCUMENT_LIFE_CYCLE_JOBS, monitor);
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.lsp4j.services.LanguageServer#getNotebookDocumentService()
+	 */
+	@Override
+	public NotebookDocumentService getNotebookDocumentService() {
+		return null;
+	}
 }

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/handlers/PrepareRenameHandler.java

@@ -30,11 +30,9 @@
 import org.eclipse.jdt.ls.core.internal.corext.refactoring.RefactoringAvailabilityTester;
 import org.eclipse.jdt.ls.core.internal.corrections.InnovationContext;
 import org.eclipse.jdt.ls.core.internal.preferences.PreferenceManager;
-import org.eclipse.lsp4j.PrepareRenameResult;
 import org.eclipse.lsp4j.Range;
 import org.eclipse.lsp4j.TextDocumentPositionParams;
 import org.eclipse.lsp4j.jsonrpc.ResponseErrorException;
-import org.eclipse.lsp4j.jsonrpc.messages.Either;
 import org.eclipse.lsp4j.jsonrpc.messages.ResponseError;
 import org.eclipse.lsp4j.jsonrpc.messages.ResponseErrorCode;
 
@@ -46,8 +44,7 @@ public PrepareRenameHandler(PreferenceManager preferenceManager) {
 		this.preferenceManager = preferenceManager;
 	}
 
-	public Either<Range, PrepareRenameResult> prepareRename(TextDocumentPositionParams params, IProgressMonitor monitor) {
-
+	public Range prepareRename(TextDocumentPositionParams params, IProgressMonitor monitor) {
 		final ICompilationUnit unit = JDTUtils.resolveCompilationUnit(params.getTextDocument().getUri());
 		if (unit != null) {
 			try {
@@ -62,7 +59,7 @@ public Either<Range, PrepareRenameResult> prepareRename(TextDocumentPositionPara
 						if (occurrences != null) {
 							for (OccurrenceLocation loc : occurrences) {
 								if (monitor.isCanceled()) {
-									return Either.forLeft(new Range());
+									return new Range();
 								}
 								if (loc.getOffset() <= offset && loc.getOffset() + loc.getLength() >= offset) {
 									// https://github.com/redhat-developer/vscode-java/issues/2805
@@ -80,7 +77,7 @@ public Either<Range, PrepareRenameResult> prepareRename(TextDocumentPositionPara
 									ASTNode node = context.getCoveredNode();
 									// Rename package is not fully supported yet.
 									if (!isBinaryOrPackage(node)) {
-										return Either.forLeft(JDTUtils.toRange(unit, loc.getOffset(), loc.getLength()));
+										return JDTUtils.toRange(unit, loc.getOffset(), loc.getLength());
 									}
 								}
 							}

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/managers/StandardProjectsManager.java

@@ -92,6 +92,7 @@
 import org.eclipse.lsp4j.MessageType;
 import org.eclipse.lsp4j.TextDocumentIdentifier;
 import org.eclipse.lsp4j.WatchKind;
+import org.eclipse.lsp4j.jsonrpc.messages.Either;
 import org.xml.sax.InputSource;
 
 public class StandardProjectsManager extends ProjectsManager {
@@ -507,14 +508,13 @@ public List<FileSystemWatcher> registerWatchers() {
 			}
 			patterns.addAll(sources.stream().map(p -> ResourceUtils.toGlobPattern(p, false)).collect(Collectors.toList()));
 			for (String pattern : patterns) {
-				FileSystemWatcher watcher = new FileSystemWatcher(pattern);
+				FileSystemWatcher watcher = new FileSystemWatcher(Either.forLeft(pattern));
 				fileWatchers.add(watcher);
 			}
 			// Watch on project root folders.
 			for (IProject project : projects) {
 				if (ProjectUtils.isVisibleProject(project) && project.exists()) {
-					FileSystemWatcher watcher = new FileSystemWatcher(
-						ResourceUtils.toGlobPattern(project.getLocation(), false), WatchKind.Delete);
+					FileSystemWatcher watcher = new FileSystemWatcher(Either.forLeft(ResourceUtils.toGlobPattern(project.getLocation(), false)), WatchKind.Delete);
 					fileWatchers.add(watcher);
 				}
 			}

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/preferences/ClientPreferences.java

@@ -287,11 +287,6 @@ public boolean isSupportsCompletionDocumentationMarkdown() {
 		//@formatter:on
 	}
 
-	@Deprecated
-	public boolean isWorkspaceEditResourceChangesSupported() {
-		return capabilities.getWorkspace() != null && capabilities.getWorkspace().getWorkspaceEdit() != null && isTrue(capabilities.getWorkspace().getWorkspaceEdit().getResourceChanges());
-	}
-
 	public boolean isResourceOperationSupported() {
 		//@formatter:off
 		return capabilities.getWorkspace() != null

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/syntaxserver/SyntaxProjectsManager.java

@@ -54,6 +54,7 @@
 import org.eclipse.jdt.ls.core.internal.preferences.Preferences;
 import org.eclipse.lsp4j.DidChangeWatchedFilesRegistrationOptions;
 import org.eclipse.lsp4j.FileSystemWatcher;
+import org.eclipse.lsp4j.jsonrpc.messages.Either;
 
 public class SyntaxProjectsManager extends ProjectsManager {
 	//@formatter:off
@@ -138,9 +139,9 @@ public List<FileSystemWatcher> registerWatchers() {
 			List<FileSystemWatcher> fileWatchers = new ArrayList<>();
 			Set<String> patterns = new LinkedHashSet<>(basicWatchers);
 			patterns.addAll(Stream.of(sources).map(ResourceUtils::toGlobPattern).collect(Collectors.toList()));
-	
+
 			for (String pattern : patterns) {
-				FileSystemWatcher watcher = new FileSystemWatcher(pattern);
+				FileSystemWatcher watcher = new FileSystemWatcher(Either.forLeft(pattern));
 				fileWatchers.add(watcher);
 			}
 
@@ -159,7 +160,7 @@ public List<FileSystemWatcher> registerWatchers() {
 		return Collections.emptyList();
 	}
 
-	
+
 	private static IPath[] listAllSourcePaths() throws JavaModelException {
 		Set<IPath> classpaths = new HashSet<>();
 		IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();