chore: fix some deprecation warnings

src/main/java/com/redhat/devtools/intellij/lsp4ij/LanguageServiceAccessor.java

@@ -39,7 +39,7 @@ public class LanguageServiceAccessor {
 
     private final Project project;
 
-    public static LanguageServiceAccessor getInstance(Project project) {
+    public static LanguageServiceAccessor getInstance(@NotNull Project project) {
         return project.getService(LanguageServiceAccessor.class);
     }
 

src/main/java/com/redhat/devtools/intellij/lsp4ij/ServerMessageHandler.java

@@ -44,30 +44,23 @@ private static Icon messageTypeToIcon(MessageType type) {
     }
 
     private static NotificationType messageTypeToNotificationType(MessageType type) {
-        NotificationType result = null;
-
-        switch (type) {
-            case Error:
-                result = NotificationType.ERROR;
-                break;
-            case Info:
-            case Log:
-                result = NotificationType.INFORMATION;
-                break;
-            case Warning:
-                result = NotificationType.WARNING;
-        }
+        NotificationType result = switch (type) {
+            case Error -> NotificationType.ERROR;
+            case Info, Log -> NotificationType.INFORMATION;
+            case Warning -> NotificationType.WARNING;
+        };
         return result;
     }
 
 
     public static void showMessage(String title, MessageParams params) {
-        Notification notification = new Notification("Language Server Protocol", messageTypeToIcon(params.getType()), title, null, params.getMessage(), messageTypeToNotificationType(params.getType()), null);
+        Notification notification = new Notification("Language Server Protocol", title, params.getMessage(), messageTypeToNotificationType(params.getType()));
+        notification.setIcon(messageTypeToIcon(params.getType()));
         Notifications.Bus.notify(notification);
     }
 
     public static CompletableFuture<MessageActionItem> showMessageRequest(LanguageServerWrapper wrapper, ShowMessageRequestParams params) {
-        String options[] = params.getActions().stream().map(MessageActionItem::getTitle).toArray(String[]::new);
+        String[] options = params.getActions().stream().map(MessageActionItem::getTitle).toArray(String[]::new);
         CompletableFuture<MessageActionItem> future = new CompletableFuture<>();
 
         ApplicationManager.getApplication().invokeLater(() -> {

src/main/java/com/redhat/devtools/intellij/lsp4ij/console/explorer/LanguageServerProcessTreeNode.java

@@ -14,7 +14,7 @@
 package com.redhat.devtools.intellij.lsp4ij.console.explorer;
 
 import com.intellij.icons.AllIcons;
-import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.openapi.util.text.Formats;
 import com.intellij.ui.AnimatedIcon;
 import com.redhat.devtools.intellij.lsp4ij.LanguageServerWrapper;
 import com.redhat.devtools.intellij.lsp4ij.ServerStatus;
@@ -124,6 +124,6 @@ public String getDisplayName() {
     public String getElapsedTime() {
         long endTime = System.currentTimeMillis();
         long duration = endTime - startTime;
-        return StringUtil.formatDuration(duration, "\u2009");
+        return Formats.formatDuration(duration, "\u2009");
     }
 }

src/main/java/com/redhat/devtools/intellij/lsp4ij/lifecycle/LanguageServerLifecycleManager.java

@@ -17,6 +17,7 @@
 import com.redhat.devtools.intellij.lsp4ij.LanguageServerWrapper;
 import org.eclipse.lsp4j.jsonrpc.MessageConsumer;
 import org.eclipse.lsp4j.jsonrpc.messages.Message;
+import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -28,7 +29,7 @@
  */
 public class LanguageServerLifecycleManager {
 
-    public static LanguageServerLifecycleManager getInstance(Project project) {
+    public static LanguageServerLifecycleManager getInstance(@NotNull Project project) {
         return project.getService(LanguageServerLifecycleManager.class);
     }
 

src/main/java/com/redhat/devtools/intellij/lsp4ij/operations/diagnostics/LSPDiagnosticHandler.java

@@ -30,6 +30,7 @@
 import org.jetbrains.annotations.NotNull;
 
 import java.net.URI;
+import java.util.concurrent.Callable;
 import java.util.function.Consumer;
 
 /**
@@ -49,7 +50,7 @@ public LSPDiagnosticHandler(LanguageServerWrapper languageServerWrapper) {
     @Override
     public void accept(PublishDiagnosticsParams params) {
         Project project = languageServerWrapper.getProject();
-        if (project.isDisposed()) {
+        if (project == null || project.isDisposed()) {
             return;
         }
         if (ApplicationManager.getApplication().isReadAccessAllowed()) {
@@ -58,9 +59,11 @@ public void accept(PublishDiagnosticsParams params) {
             // Cancel if needed the previous "textDocument/publishDiagnostics" for a given uri.
             var coalesceBy = new CoalesceByKey("textDocument/publishDiagnostics", params.getUri());
             var executeInSmartMode = DumbService.getInstance(languageServerWrapper.getProject()).isDumb();
-            var action = ReadAction.nonBlocking(() -> updateDiagnostics(params, project))
-                    .expireWith(languageServerWrapper)
-                    .coalesceBy(coalesceBy);
+            var action = ReadAction.nonBlocking((Callable<Void>) () -> {
+                            updateDiagnostics(params, project);
+                            return null;
+                        }).expireWith(languageServerWrapper)
+                        .coalesceBy(coalesceBy);
             if (executeInSmartMode) {
                 action.inSmartMode(project);
             }

src/main/java/com/redhat/devtools/intellij/lsp4mp4ij/classpath/ClasspathResourceChangedManager.java

@@ -25,6 +25,7 @@
 import com.intellij.psi.PsiManager;
 import com.intellij.util.messages.MessageBusConnection;
 import com.intellij.util.messages.Topic;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.Set;
 
@@ -53,7 +54,7 @@ public class ClasspathResourceChangedManager implements Disposable {
 	private final MessageBusConnection appConnection;
 	private final ClasspathResourceChangedListener listener;
 
-	public static ClasspathResourceChangedManager getInstance(Project project) {
+	public static ClasspathResourceChangedManager getInstance(@NotNull Project project) {
 		return project.getService(ClasspathResourceChangedManager.class);
 	}
 

src/main/java/com/redhat/devtools/intellij/lsp4mp4ij/psi/core/project/AbstractConfigSource.java

@@ -21,6 +21,7 @@
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.charset.Charset;
 import java.util.List;
 import java.util.Map;
 
@@ -190,7 +191,7 @@ protected final T getConfig() {
     public void reload(PsiFile file) {
         reset();
         String content = file.getText();
-        try (InputStream input = IOUtils.toInputStream(content)) {
+        try (InputStream input = IOUtils.toInputStream(content, Charset.defaultCharset())) {
             config = loadConfig(input);
             lastModified = System.currentTimeMillis();
         } catch (IOException e) {

src/main/java/com/redhat/devtools/intellij/lsp4mp4ij/psi/core/project/PsiMicroProfileProjectManager.java

@@ -36,7 +36,7 @@ public final class PsiMicroProfileProjectManager implements Disposable {
 
 	private static final String JAVA_FILE_EXTENSION = "java";
 
-	public static PsiMicroProfileProjectManager getInstance(Project project) {
+	public static PsiMicroProfileProjectManager getInstance(@NotNull Project project) {
 		return project.getService(PsiMicroProfileProjectManager.class);
 	}
 

src/main/java/com/redhat/devtools/intellij/quarkus/QuarkusDeploymentSupport.java

@@ -58,7 +58,7 @@ public class QuarkusDeploymentSupport implements ClasspathResourceChangedManager
     private final MessageBusConnection connection;
     private final Project project;
 
-    public static QuarkusDeploymentSupport getInstance(Project project) {
+    public static QuarkusDeploymentSupport getInstance(@NotNull Project project) {
         return project.getService(QuarkusDeploymentSupport.class);
     }
 

src/main/java/com/redhat/devtools/intellij/quarkus/QuarkusProjectService.java

@@ -31,6 +31,7 @@
 import org.eclipse.lsp4mp.commons.MicroProfileProjectInfo;
 import org.eclipse.lsp4mp.commons.MicroProfilePropertiesScope;
 import org.eclipse.lsp4mp.utils.JSONSchemaUtils;
+import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -44,7 +45,7 @@ public class QuarkusProjectService implements ClasspathResourceChangedManager.Li
 
     private final Map<Module, MutablePair<VirtualFile, Boolean>> schemas = new ConcurrentHashMap<>();
 
-    public static QuarkusProjectService getInstance(Project project) {
+    public static QuarkusProjectService getInstance(@NotNull Project project) {
         return project.getService(QuarkusProjectService.class);
     }
 

src/main/java/com/redhat/devtools/intellij/quarkus/buildtool/gradle/AbstractGradleToolDelegate.java

@@ -13,18 +13,14 @@
 import com.intellij.execution.RunManager;
 import com.intellij.execution.RunnerAndConfigurationSettings;
 import com.intellij.ide.util.newProjectWizard.AddModuleWizard;
-import com.intellij.openapi.components.ServiceManager;
-import com.intellij.openapi.externalSystem.ExternalSystemModulePropertyManager;
+import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.externalSystem.model.settings.ExternalSystemExecutionSettings;
 import com.intellij.openapi.externalSystem.model.task.ExternalSystemTaskId;
 import com.intellij.openapi.externalSystem.model.task.ExternalSystemTaskType;
 import com.intellij.openapi.externalSystem.service.ExternalSystemFacadeManager;
 import com.intellij.openapi.externalSystem.service.RemoteExternalSystemFacade;
-import com.intellij.openapi.externalSystem.service.project.IdeModelsProvider;
-import com.intellij.openapi.externalSystem.service.project.IdeModelsProviderImpl;
 import com.intellij.openapi.externalSystem.service.project.ProjectDataManager;
 import com.intellij.openapi.externalSystem.service.project.manage.ProjectDataImportListener;
-import com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManagerImpl;
 import com.intellij.openapi.externalSystem.service.remote.RemoteExternalSystemTaskManager;
 import com.intellij.openapi.externalSystem.util.ExternalSystemApiUtil;
 import com.intellij.openapi.module.ModifiableModuleModel;
@@ -160,7 +156,7 @@ private String getModuleDirPath(Module module) {
      */
     private void collectDependencies(Module module, Path customBuildFile, Path customSettingsFile, Path outputPath, List<VirtualFile>[] result) throws IOException {
         try {
-            final ExternalSystemFacadeManager manager = ServiceManager.getService(ExternalSystemFacadeManager.class);
+            final ExternalSystemFacadeManager manager = ApplicationManager.getApplication().getService(ExternalSystemFacadeManager.class);
 
             ExternalSystemExecutionSettings settings = ExternalSystemApiUtil.getExecutionSettings(module.getProject(),
                     getModuleDirPath(module),

src/main/java/com/redhat/devtools/intellij/quarkus/facet/QuarkusFrameworkDetector.java

@@ -13,8 +13,8 @@
 import com.intellij.facet.FacetType;
 import com.intellij.framework.detection.FacetBasedFrameworkDetector;
 import com.intellij.framework.detection.FileContentPattern;
+import com.intellij.ide.highlighter.XmlFileType;
 import com.intellij.openapi.fileTypes.FileType;
-import com.intellij.openapi.fileTypes.StdFileTypes;
 import com.intellij.patterns.ElementPattern;
 import com.intellij.util.indexing.FileContent;
 import org.jetbrains.annotations.NotNull;
@@ -34,7 +34,7 @@ public FacetType<QuarkusFacet, QuarkusFacetConfiguration> getFacetType() {
     @NotNull
     @Override
     public FileType getFileType() {
-        return StdFileTypes.XML;
+        return XmlFileType.INSTANCE;
     }
 
     @NotNull

src/main/java/com/redhat/devtools/intellij/quarkus/lsp/QuarkusServer.java

@@ -12,6 +12,7 @@
 
 import com.intellij.ide.plugins.IdeaPluginDescriptor;
 import com.intellij.ide.plugins.PluginManager;
+import com.intellij.ide.plugins.PluginManagerCore;
 import com.intellij.openapi.extensions.PluginId;
 import com.intellij.openapi.project.Project;
 import com.redhat.devtools.intellij.lsp4ij.server.JavaProcessCommandBuilder;
@@ -23,6 +24,7 @@
 
 import java.io.File;
 import java.net.URI;
+import java.nio.file.Path;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
@@ -39,13 +41,17 @@ public class QuarkusServer extends ProcessStreamConnectionProvider {
 
     public QuarkusServer(Project project) {
         this.project = project;
-        IdeaPluginDescriptor descriptor = PluginManager.getPlugin(PluginId.getId("com.redhat.devtools.intellij.quarkus"));
-        File lsp4mpServerPath = new File(descriptor.getPath(), "lib/server/org.eclipse.lsp4mp.ls-uber.jar");
-        File quarkusServerPath = new File(descriptor.getPath(), "lib/server/com.redhat.quarkus.ls.jar");
+        IdeaPluginDescriptor descriptor = PluginManagerCore.getPlugin(PluginId.getId("com.redhat.devtools.intellij.quarkus"));
+        assert descriptor != null;
+        Path pluginPath = descriptor.getPluginPath();
+        assert pluginPath != null;
+        pluginPath = pluginPath.toAbsolutePath();
+        Path lsp4mpServerPath = pluginPath.resolve("lib/server/org.eclipse.lsp4mp.ls-uber.jar");
+        Path quarkusServerPath = pluginPath.resolve("lib/server/com.redhat.quarkus.ls.jar");
 
         List<String> commands = new JavaProcessCommandBuilder(project, "microprofile")
-                .setJar(lsp4mpServerPath.getAbsolutePath())
-                .setCp(quarkusServerPath.getAbsolutePath())
+                .setJar(lsp4mpServerPath.toString())
+                .setCp(quarkusServerPath.toString())
                 .create();
         commands.add("-DrunAsync=true");
         super.setCommands(commands);

src/main/java/com/redhat/devtools/intellij/qute/facet/QuteFrameworkDetector.java

@@ -13,8 +13,8 @@
 import com.intellij.facet.FacetType;
 import com.intellij.framework.detection.FacetBasedFrameworkDetector;
 import com.intellij.framework.detection.FileContentPattern;
+import com.intellij.ide.highlighter.XmlFileType;
 import com.intellij.openapi.fileTypes.FileType;
-import com.intellij.openapi.fileTypes.StdFileTypes;
 import com.intellij.patterns.ElementPattern;
 import com.intellij.util.indexing.FileContent;
 import org.jetbrains.annotations.NotNull;
@@ -34,7 +34,7 @@ public FacetType<QuteFacet, QuteFacetConfiguration> getFacetType() {
     @NotNull
     @Override
     public FileType getFileType() {
-        return StdFileTypes.XML;
+        return XmlFileType.INSTANCE;
     }
 
     @NotNull

src/main/java/com/redhat/devtools/intellij/qute/lang/psi/QuteElementType.java

@@ -22,6 +22,6 @@ public QuteElementType(@NonNls @NotNull String debugName) {
 
     @Override
     public String toString() {
-        return "QuteElementType." + getDebugName();
+        return "QuteElementType." + super.toString();
     }
 }

src/main/java/com/redhat/devtools/intellij/qute/lsp/QuteServer.java

@@ -12,6 +12,7 @@
 
 import com.intellij.ide.plugins.IdeaPluginDescriptor;
 import com.intellij.ide.plugins.PluginManager;
+import com.intellij.ide.plugins.PluginManagerCore;
 import com.intellij.openapi.extensions.PluginId;
 import com.intellij.openapi.project.Project;
 import com.redhat.devtools.intellij.lsp4ij.server.JavaProcessCommandBuilder;
@@ -23,6 +24,7 @@
 
 import java.io.File;
 import java.net.URI;
+import java.nio.file.Path;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
@@ -39,11 +41,14 @@ public class QuteServer extends ProcessStreamConnectionProvider {
 
     public QuteServer(Project project) {
         this.project = project;
-        IdeaPluginDescriptor descriptor = PluginManager.getPlugin(PluginId.getId("com.redhat.devtools.intellij.quarkus"));
-        File quteServerPath = new File(descriptor.getPath(), "lib/server/com.redhat.qute.ls-uber.jar");
+        IdeaPluginDescriptor descriptor = PluginManagerCore.getPlugin(PluginId.getId("com.redhat.devtools.intellij.quarkus"));
+        assert descriptor != null;
+        Path pluginPath = descriptor.getPluginPath();
+        assert pluginPath != null;
+        Path quteServerPath = pluginPath.toAbsolutePath().resolve("lib/server/com.redhat.qute.ls-uber.jar");
 
         List<String> commands = new JavaProcessCommandBuilder(project, "qute")
-                .setJar(quteServerPath.getAbsolutePath())
+                .setJar(quteServerPath.toString())
                 .create();
         commands.add("-DrunAsync=true");
         super.setCommands(commands);

src/main/resources/META-INF/lsp4ij.xml

@@ -57,6 +57,7 @@
                 implementation="com.redhat.devtools.intellij.lsp4ij.operations.documentLink.LSPDocumentLinkGotoDeclarationHandler"/>
         <highlightUsagesHandlerFactory
                 implementation="com.redhat.devtools.intellij.lsp4ij.operations.highlight.LSPHighlightUsagesHandlerFactory"/>
+        <notificationGroup id="Language Server Protocol" displayType="BALLOON" hideFromSettings="true"/>
     </extensions>
 
     <applicationListeners>