refactor: remove javax.annotation

src/main/java/com/redhat/devtools/lsp4ij/LSPIJUtils.java

@@ -41,7 +41,6 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.annotation.Nonnull;
 import java.io.File;
 import java.io.IOException;
 import java.net.MalformedURLException;
@@ -93,8 +92,8 @@ public static void openInEditor(VirtualFile file, Position position, Project pro
         }
     }
 
-    @Nonnull
-    public static Language getFileLanguage(@Nonnull VirtualFile file, Project project) {
+    @NotNull
+    public static Language getFileLanguage(@NotNull VirtualFile file, Project project) {
         return ReadAction.compute(() -> LanguageUtil.getLanguageForPsi(project, file));
     }
 
@@ -230,8 +229,8 @@ public static Position toPosition(int offset, Document document) {
         return new Position(line, column);
     }
 
-    @Nonnull
-    public static WorkspaceFolder toWorkspaceFolder(@Nonnull Project project) {
+    @NotNull
+    public static WorkspaceFolder toWorkspaceFolder(@NotNull Project project) {
         WorkspaceFolder folder = new WorkspaceFolder();
         folder.setUri(toUri(project).toASCIIString());
         folder.setName(project.getName());

src/main/java/com/redhat/devtools/lsp4ij/LanguageServersRegistry.java

@@ -17,14 +17,12 @@
 import com.redhat.devtools.lsp4ij.client.LanguageClientImpl;
 import com.redhat.devtools.lsp4ij.server.StreamConnectionProvider;
 import org.eclipse.lsp4j.jsonrpc.Launcher;
-import org.eclipse.lsp4j.jsonrpc.validation.NonNull;
 import org.eclipse.lsp4j.services.LanguageServer;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
 import javax.swing.*;
 import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
@@ -44,22 +42,22 @@ enum Scope {
 
         private static final int DEFAULT_LAST_DOCUMENTED_DISCONNECTED_TIMEOUT = 5;
 
-        public final @Nonnull
+        public final @NotNull
         String id;
-        public final @Nonnull
+        public final @NotNull
         String label;
         public final boolean isSingleton;
-        public final @Nonnull
+        public final @NotNull
         Map<Language, String> languageIdMappings;
         public final String description;
         public final int lastDocumentDisconnectedTimeout;
         private boolean enabled;
 
         public final boolean supportsLightEdit;
 
-        final @Nonnull Scope scope;
+        final @NotNull Scope scope;
 
-        public LanguageServerDefinition(@Nonnull String id, @Nonnull String label, String description, boolean isSingleton, Integer lastDocumentDisconnectedTimeout, String scope, boolean supportsLightEdit) {
+        public LanguageServerDefinition(@NotNull String id, @NotNull String label, String description, boolean isSingleton, Integer lastDocumentDisconnectedTimeout, String scope, boolean supportsLightEdit) {
             this.id = id;
             this.label = label;
             this.description = description;
@@ -90,11 +88,11 @@ public void setEnabled(boolean enabled) {
             this.enabled = enabled;
         }
 
-        public void registerAssociation(@Nonnull Language language, @Nonnull String languageId) {
+        public void registerAssociation(@NotNull Language language, @NotNull String languageId) {
             this.languageIdMappings.put(language, languageId);
         }
 
-        @Nonnull
+        @NotNull
         public String getDisplayName() {
             return label != null ? label : id;
         }
@@ -282,7 +280,7 @@ public DocumentMatcher getDocumentMatcher() {
      *
      * @return the language server definition for the given language server id and null otherwise.
      */
-    public @Nullable LanguageServerDefinition getServerDefinition(@NonNull String languageServerId) {
+    public @Nullable LanguageServerDefinition getServerDefinition(@NotNull String languageServerId) {
         return serverDefinitions.get(languageServerId);
     }
 

src/main/java/com/redhat/devtools/lsp4ij/internal/SupportedFeatures.java

@@ -12,19 +12,18 @@
  *******************************************************************************/
 package com.redhat.devtools.lsp4ij.internal;
 
-import java.util.Arrays;
-import java.util.List;
-
 import org.eclipse.lsp4j.*;
+import org.jetbrains.annotations.NotNull;
 
-import javax.annotation.Nonnull;
+import java.util.Arrays;
+import java.util.List;
 
 /**
  *
  */
 public class SupportedFeatures {
 
-	public static @Nonnull TextDocumentClientCapabilities getTextDocumentClientCapabilities() {
+	public static @NotNull TextDocumentClientCapabilities getTextDocumentClientCapabilities() {
 		final var textDocumentClientCapabilities = new TextDocumentClientCapabilities();
 
 		// Code Action support
@@ -119,7 +118,7 @@ public class SupportedFeatures {
 		return textDocumentClientCapabilities;
 	}
 
-	public static @Nonnull WorkspaceClientCapabilities getWorkspaceClientCapabilities() {
+	public static @NotNull WorkspaceClientCapabilities getWorkspaceClientCapabilities() {
 		final var workspaceClientCapabilities = new WorkspaceClientCapabilities();
 		workspaceClientCapabilities.setApplyEdit(Boolean.TRUE);
 		// TODO

src/main/java/com/redhat/devtools/lsp4ij/server/OS.java

@@ -1,3 +1,13 @@
+/*******************************************************************************
+ * Copyright (c) 2023 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at https://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
 package com.redhat.devtools.lsp4ij.server;
 
 import java.util.Locale;

src/main/java/com/redhat/devtools/lsp4ij/server/ProcessStreamConnectionProvider.java

@@ -1,13 +1,27 @@
+/*******************************************************************************
+ * Copyright (c) 2023 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at https://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
 package com.redhat.devtools.lsp4ij.server;
 
-import javax.annotation.Nullable;
+import org.jetbrains.annotations.Nullable;
+
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.List;
 import java.util.Objects;
 
+/**
+ * Process stream connection provider used to start a language server with a process.
+ */
 public abstract class ProcessStreamConnectionProvider implements StreamConnectionProvider {
     private @Nullable
     Process process;

src/main/java/com/redhat/devtools/lsp4ij/server/StreamConnectionProvider.java

@@ -1,13 +1,30 @@
+/*******************************************************************************
+ * Copyright (c) 2023 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at https://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
 package com.redhat.devtools.lsp4ij.server;
 
 import org.eclipse.lsp4j.jsonrpc.messages.Message;
 import org.eclipse.lsp4j.services.LanguageServer;
+import org.jetbrains.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.net.URI;
 
+/**
+ * Stream connection provider API used to:
+ * <ul>
+ *     <li>start a language server.</li>
+ *     <li>get the stream of LSP requests, responses and notifications.</li>
+ * </ul>
+ */
 public interface StreamConnectionProvider {
 
     void start() throws CannotStartProcessException;