delimiter, not sep

Clients/VisualStudioCode/package.json

@@ -3,7 +3,7 @@
   "name": "java-tx-language-extension",
   "displayName": "Java-TX Language Extension",
   "description": "The Language Extension for Java-TX with Typehints and Syntax Checks",
-  "version": "0.0.9",
+  "version": "0.0.19",
   "engines": {
     "vscode": "^1.94.0"
   },
@@ -20,6 +20,18 @@
         "command": "tx.restartLanguageServer",
         "title": "TX: Restart Language Server"
       }
+    ],
+    "configuration": [
+      {
+        "title": "JavaTX Language Server Plugin",
+        "properties": {
+          "tx.compilerLocation": {
+            "type": "string",
+            "format": "file",
+            "description": "JavaTX Compiler Location"
+          }
+        }
+      }
     ]
   },
   "scripts": {
@@ -42,6 +54,7 @@
     "typescript": "^5.6.2"
   },
   "dependencies": {
+    "@vscode/vsce": "^3.6.1",
     "vscode-languageclient": "^9.0.1"
   }
 }

Clients/VisualStudioCode/src/extension.ts

@@ -1,28 +1,67 @@
+import path from 'path';
+import os from "os";
 import * as vscode from 'vscode';
 import {
+  Executable,
   LanguageClient,
   LanguageClientOptions,
   ServerOptions
 } from 'vscode-languageclient/node';
 
+let homeDirectory: string;
+let currentUser: string;
+
+function untildify(pathWithTilde: string) {
+	if (homeDirectory === undefined) {
+		homeDirectory = os.homedir();
+	}
+
+	// Handle regular ~ expansion (current user)
+	if (homeDirectory && /^~(?=$|\/|\\)/.test(pathWithTilde)) {
+		return pathWithTilde.replace(/^~/, homeDirectory);
+	}
+
+	// Handle ~username expansion (only for current user)
+	const userMatch = pathWithTilde.match(/^~([^/\\]+)(.*)/);
+	if (userMatch) {
+		if (currentUser === undefined) {
+			currentUser = os.userInfo().username;
+		}
+
+		if (currentUser) {
+			const username = userMatch[1];
+			const rest = userMatch[2];
+			if (username === currentUser) {
+				return homeDirectory + rest;
+			}
+		}
+	}
+
+	// Return unchanged if no expansion occurred
+	return pathWithTilde;
+}
+
 let client: LanguageClient | undefined;   // <— global, damit wir neu starten können
 
-function createClient(context: vscode.ExtensionContext): LanguageClient {
+function createClient(context: vscode.ExtensionContext): LanguageClient | null {
   const workspaceFolder = context.extensionPath;
+  const config = vscode.workspace.getConfiguration("tx");
+
+  let compiler = config.get<string>("compilerLocation");
+  if (!compiler || compiler.trim() === "") {
+    vscode.window.showErrorMessage("Bitte konfiguriere den Pfad des Java-TX Compilers in den Einstellungen!");
+    return null;
+  }
+  compiler = path.resolve(untildify(compiler));
+
+  const cmd: Executable = {
+    command: 'java',
+    args: ['-Xss10m', '-cp', `${compiler}${path.delimiter}${workspaceFolder}/JavaTXLanguageServer-1.0-SNAPSHOT-jar-with-dependencies.jar`, "de.dhbw.JavaTXLanguageServerLauncher"],
+  };
 
   const serverOptions: ServerOptions = {
-    run: {
-      command: 'java',
-      args: ['-Xss10m', '-jar', workspaceFolder + "/JavaTXLanguageServer-1.0-SNAPSHOT-jar-with-dependencies.jar"],
-    },
-    debug: {
-      command: 'java',
-      args: [
-      '-Xss10m',
-      '-jar',
-      workspaceFolder + '/JavaTXLanguageServer-1.0-SNAPSHOT-jar-with-dependencies.jar',
-    ],
-    }
+    run: cmd,
+    debug: cmd
   };
 
   const clientOptions: LanguageClientOptions = {
@@ -42,7 +81,9 @@ function createClient(context: vscode.ExtensionContext): LanguageClient {
 }
 
 export async function activate(context: vscode.ExtensionContext) {
-  client = createClient(context);
+  const c = createClient(context);
+  if (!c) return;
+  client = c;
 
   client.start()
     .then(() => console.log("Language Client erfolgreich gestartet"))
@@ -50,12 +91,6 @@ export async function activate(context: vscode.ExtensionContext) {
 
   console.log('Congratulations, your extension "tx" is now active!');
 
-  // Beispiel-Command aus deinem Code bleibt
-  const hello = vscode.commands.registerCommand('lspclient.helloWorld', () => {
-    vscode.window.showInformationMessage('Hello World from TX!');
-  });
-  context.subscriptions.push(hello);
-
   // *** NEU: Restart-Command ***
   const restart = vscode.commands.registerCommand('tx.restartLanguageServer', async () => {
     if (!client) {
@@ -68,7 +103,9 @@ export async function activate(context: vscode.ExtensionContext) {
     } catch (e) {
       console.error('Fehler beim Stoppen des Language Clients:', e);
     }
-    client = createClient(context); // komplett neu erzeugen
+    const c = createClient(context); // komplett neu erzeugen
+    if (!c) return;
+    client = c;
     try {
       await client.start();
       vscode.window.showInformationMessage('Java-TX Language Server neu gestartet.');

Clients/emacs/README.md

@@ -0,0 +1,11 @@
+## Install emacs plugin:
+
+Edit your .emacs file and add the following:
+
+```
+(use-package javatx-mode
+  :custom
+  (javatx-compiler-path "$PATH_TO_COMPILER$")
+  (javatx-lsp-server-path "$PATH_TO_LSP$")
+  :load-path "~/.emacs.d/lisp")
+```

Clients/emacs/javatx-mode.el

@@ -0,0 +1,84 @@
+;;; javatx-mode.el --- Major mode for .jav files -*- lexical-binding: t; -*-
+
+(defvar javatx-mode-hook nil
+  "Hook called when entering `javatx-mode`.")
+
+;; Define the mode
+(define-derived-mode javatx-mode java-mode "Javatx"
+  "Major mode for editing `.jav` files.")
+
+;; Automatically use javatx-mode for .jav files
+;;;###autoload
+(add-to-list 'auto-mode-alist '("\\.jav\\'" . javatx-mode))
+
+(provide 'javatx-mode)
+;;; javatx-mode.el ends here
+
+;; Initialize package sources
+(require 'package)
+(setq package-archives
+      '(("melpa" . "https://melpa.org/packages/")
+        ("gnu" . "https://elpa.gnu.org/packages/")))
+(package-initialize)
+
+;; Refresh package contents if needed
+(unless package-archive-contents
+  (package-refresh-contents))
+
+;; Install use-package if not installed
+(unless (package-installed-p 'use-package)
+  (package-install 'use-package))
+
+(require 'use-package)
+(setq use-package-always-ensure t) ;; automatically install packages if missing
+
+(use-package lsp-mode
+  :hook (prog-mode . lsp)
+  :commands lsp
+  :config
+  (setq lsp-prefer-flymake nil)) ;; use flycheck instead of flymake
+
+(use-package lsp-ui
+  :commands lsp-ui-mode
+  :hook (lsp-mode . lsp-ui-mode)
+  :config
+  (setq lsp-ui-sideline-show-hover t
+        lsp-ui-sideline-show-code-actions t
+        lsp-ui-sideline-show-diagnostics t))
+
+(defcustom javatx-compiler-path nil
+  "Path to the JavaTX Compiler jar."
+  :type 'string
+  :group 'javatx)
+
+(defcustom javatx-lsp-server-path nil
+  "Path to the JavaTX Language Server jar."
+  :type 'string
+  :group 'javatx)
+
+;;register javatx-mode lsp
+(with-eval-after-load 'lsp-mode
+  (message "Compiler path: %s" javatx-compiler-path)
+  (message "Server path: %s" javatx-lsp-server-path)
+  (add-to-list 'lsp-language-id-configuration '(javatx-mode . "Java-TX"))
+  (lsp-register-client
+   (make-lsp-client
+    :new-connection (lsp-stdio-connection (lambda () `("java" "-cp" ,(format "%s:%s" (expand-file-name javatx-compiler-path) (expand-file-name javatx-lsp-server-path)) "de.dhbw.JavaTXLanguageServerLauncher")))
+    :major-modes '(javatx-mode)
+    :server-id 'javatx-lsp-proxy)))
+
+(add-hook 'javatx-mode-hook #'lsp) ;; start LSP automatically for .jav files
+
+;; Automatically enable inlay hints for javatx-mode
+(add-hook 'javatx-mode-hook
+          (lambda ()
+            ;; Replace 'lsp-inlay-hints-mode' with whatever inlay hints function you use
+            (when (fboundp 'lsp-inlay-hints-mode)
+              (lsp-inlay-hints-mode 1))))
+
+
+(setq lsp-log-io t)  ;; enable logging of LSP messages
+
+(with-eval-after-load 'lsp-mode
+  (define-key lsp-mode-map (kbd "C-c a") 'lsp-execute-code-action))
+

LanguageServer/pom.xml

@@ -14,61 +14,17 @@
             <version>4.11</version>
             <scope>test</scope>
         </dependency>
-        <!-- https://mvnrepository.com/artifact/org.antlr/antlr4 -->
-        <dependency>
-            <groupId>org.antlr</groupId>
-            <artifactId>antlr4</artifactId>
-            <version>4.11.1</version>
-        </dependency>
-        <dependency>
-            <groupId>io.github.java-diff-utils</groupId>
-            <artifactId>java-diff-utils</artifactId>
-            <version>4.12</version>
-        </dependency>
         <dependency>
             <groupId>log4j</groupId>
             <artifactId>log4j</artifactId>
             <version>1.2.17</version>
         </dependency>
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-api</artifactId>
-            <version>2.20.0</version>
-        </dependency>
-
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-core</artifactId>
-            <version>2.20.0</version>
-        </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter</artifactId>
-            <version>5.10.0</version>
+            <version>5.14.0</version>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>commons-io</groupId>
-            <artifactId>commons-io</artifactId>
-            <version>2.6</version>
-        </dependency>
-        <dependency>
-            <groupId>io.github.classgraph</groupId>
-            <artifactId>classgraph</artifactId>
-            <version>4.8.172</version>
-        </dependency>
-
-        <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava</artifactId>
-            <version>33.2.0-jre</version>
-        </dependency>
-        <!-- https://mvnrepository.com/artifact/org.ow2.asm/asm -->
-        <dependency>
-            <groupId>org.ow2.asm</groupId>
-            <artifactId>asm</artifactId>
-            <version>9.5</version>
-        </dependency>
         <dependency>
             <groupId>org.eclipse.lsp4j</groupId>
             <artifactId>org.eclipse.lsp4j</artifactId>
@@ -78,6 +34,7 @@
             <groupId>de.dhbwstuttgart</groupId>
             <artifactId>JavaTXcompiler</artifactId>
             <version>0.1</version>
+            <scope>provided</scope>
         </dependency>
     </dependencies>
     <properties>

LanguageServer/src/main/java/de/dhbw/JavaTXLanguageServer.java

@@ -17,6 +17,7 @@ import java.util.concurrent.CompletableFuture;
  * */
 public class JavaTXLanguageServer implements LanguageServer {
     private static final Logger logger = LogManager.getLogger(JavaTXLanguageServer.class);
+    public static ClientCapabilities capabilities;
     private LanguageClient client;
 
     public void connect(LanguageClient client) {
@@ -48,6 +49,7 @@ public class JavaTXLanguageServer implements LanguageServer {
         if(params.getWorkspaceFolders() != null && !params.getWorkspaceFolders().isEmpty()) {
             textDocumentService.setFileRoot(params.getWorkspaceFolders());
         }
+        JavaTXLanguageServer.capabilities = params.getCapabilities();
 
         return CompletableFuture.supplyAsync(() -> new InitializeResult(capabilities));
     }

LanguageServer/src/main/java/de/dhbw/JavaTXTextDocumentService.java

@@ -113,8 +113,7 @@ public class JavaTXTextDocumentService implements org.eclipse.lsp4j.services.Tex
         if (!syntaxErrors.isEmpty()) {
             clientService.publishDiagnostics(params.getTextDocument().getUri(), syntaxErrors);
         }
-        client.refreshDiagnostics();
-        client.refreshInlayHints();
+        clientService.updateClient();
         textDocuments.put(params.getTextDocument().getUri(), params.getTextDocument().getText());
         textDocumentService.saveFileWithUri(params.getTextDocument().getUri(), params.getTextDocument().getText());
     }
@@ -154,10 +153,10 @@ public class JavaTXTextDocumentService implements org.eclipse.lsp4j.services.Tex
     @Override
     public void didSave(DidSaveTextDocumentParams didSaveTextDocumentParams) {
         logService.log("[didSave] Client triggered didSave-Event.");
-        clientService.startLoading("compile-task", "Inferring types...", client);
+        clientService.startLoading("compile-task", "Inferring types...");
         saveHandler.handleSave(didSaveTextDocumentParams);
-        clientService.stopLoading("compile-task", "Types successfully inferred", client);
-        clientService.updateClient(client);
+        clientService.stopLoading("compile-task", "Types successfully inferred");
+        clientService.updateClient();
     }
 
     @Override
@@ -298,7 +297,9 @@ public class JavaTXTextDocumentService implements org.eclipse.lsp4j.services.Tex
 
         logService.log("[codeAction] Client requested Insert at Line [" + params.getRange().getStart().getLine() + "] and from Char [" + params.getRange().getStart().getCharacter() + "] to [" + params.getRange().getEnd().getCharacter() + "].", MessageType.Info);
 
-        logService.log("Code-Action Context was: " + params.getContext().getTriggerKind().name(), MessageType.Info);
+        var triggerKind = params.getContext().getTriggerKind();
+        if (triggerKind != null)
+            logService.log("Code-Action Context was: " + triggerKind.name(), MessageType.Info);
 
         return CompletableFuture.supplyAsync(() -> {
             return codeActionHandler.handleNewCodeAction(params);

LanguageServer/src/main/java/de/dhbw/handler/ChangeHandler.java

@@ -80,6 +80,8 @@ public class ChangeHandler {
 
         if (!syntaxErrors.isEmpty()) {
             clientService.publishDiagnostics(params.getTextDocument().getUri(), syntaxErrors);
+        }else {
+            clientService.updateClient();
         }
         logService.log("Found [" + syntaxErrors.size() + "] Syntax Errors in Document.");
 
@@ -164,7 +166,7 @@ public class ChangeHandler {
                         bw.close();
 
                         try {
-                            ArrayList<LSPVariable> variables = typeResolver.infereInput(tempFile2.toURI().toString(), input, true);
+                            ArrayList<LSPVariable> variables = typeResolver.infereInput(tempFile2.toURI().toString(), input);
                             cacheService.setVariables(variables);
 
                             DiagnosticsAndTypehints diagnosticsAndTypehints = conversionHelper.variablesToDiagnosticsAndTypehintsWithInput(variables, input);
@@ -175,10 +177,9 @@ public class ChangeHandler {
                             cacheService.updateGlobalMaps(diagnostics, typeHint, params.getTextDocument().getUri());
 
                             List<Diagnostic> allDiagnostics = new ArrayList<>(diagnostics);
-                            allDiagnostics.addAll(parserService.getDiagnosticsOfErrors(input, params.getTextDocument().getUri()));
 
                             clientService.publishDiagnostics(params.getTextDocument().getUri(), allDiagnostics);
-                        } catch (Exception f) {
+                        } catch (Exception | VerifyError f) {
                             logService.log("[didSave] Error trying to get Inlay-Hints and Diagnostics for Client: " + f.getMessage(), MessageType.Error);
 
                             for (StackTraceElement elem : f.getStackTrace()) {
@@ -190,10 +191,6 @@ public class ChangeHandler {
                         tempFile2.delete();
                     } catch (Exception e) {
                         logService.log("[didSave] Error trying to get Inlay-Hints and Diagnostics for Client: " + e.getMessage(), MessageType.Error);
-
-                        for (StackTraceElement elem : e.getStackTrace()) {
-                            logService.log(elem.toString());
-                        }
                         clientService.showMessage(MessageType.Error, e.getMessage() == null ? "null" : e.getMessage());
                         cacheService.updateGlobalMaps(new ArrayList<>(), new ArrayList<>(), params.getTextDocument().getUri());
 

LanguageServer/src/main/java/de/dhbw/handler/CodeActionHandler.java

@@ -105,43 +105,50 @@ public class CodeActionHandler {
         String documentUri = params.getTextDocument().getUri();
         Range rangeOfInsert = params.getRange();
 
-        //All Diagnostics that are in range of the hover -> All Diagnostics of the selected Variable and thus all Types of the Variable
-        Map<String, List<PlaceholderVariable>> typeInsertsOverlapping = getOverlapping(typeResolver.getInserts(), rangeOfInsert.getStart().getLine() + 1, rangeOfInsert.getStart().getCharacter(), rangeOfInsert.getEnd().getCharacter());
-        logService.log("Inserts are:");
-        typeResolver.getInserts().forEach((key, value) -> logService.log(key));
-        logService.log("Size is: " + typeInsertsOverlapping.size());
-        logService.log("Range is: " + rangeOfInsert.getStart().getLine() + " -> " + rangeOfInsert.getStart().getCharacter() + " - " + rangeOfInsert.getEnd().getCharacter());
-        List<Either<Command, CodeAction>> actions = new ArrayList<>();
+        if (typeResolver.getInserts() != null) {
+            //All Diagnostics that are in range of the hover -> All Diagnostics of the selected Variable and thus all Types of the Variable
+            Map<String, List<PlaceholderVariable>> typeInsertsOverlapping = getOverlapping(typeResolver.getInserts(), rangeOfInsert.getStart().getLine() + 1, rangeOfInsert.getStart().getCharacter(), rangeOfInsert.getEnd().getCharacter());
+            logService.log("Inserts are:");
+            typeResolver.getInserts().forEach((key, value) -> logService.log(key));
+            logService.log("Size is: " + typeInsertsOverlapping.size());
+            logService.log("Range is: " + rangeOfInsert.getStart().getLine() + " -> " + rangeOfInsert.getStart().getCharacter() + " - " + rangeOfInsert.getEnd().getCharacter());
+            List<Either<Command, CodeAction>> actions = new ArrayList<>();
 
-        for (var typeInsertList : typeInsertsOverlapping.values()) {
-            for (var typeInsert : typeInsertList) {
-                try {
-                    logService.log("NEW TEXT OF FILE BEFORE INSERT IS:");
-                    logService.log(textDocumentService.getFileOfUri(documentUri));
-                    String typeWithReplacedVariable = typeInsert.insert(textDocumentService.getFileOfUri(documentUri));
+            for (var typeInsertList : typeInsertsOverlapping.values()) {
+                for (var typeInsert : typeInsertList) {
+                    try {
+                        logService.log("NEW TEXT OF FILE BEFORE INSERT IS:");
+                        logService.log(textDocumentService.getFileOfUri(documentUri));
+                        String typeWithReplacedVariable = typeInsert.insert(textDocumentService.getFileOfUri(documentUri));
 
-                    ArrayList<TextEdit> listOfChanges = new ArrayList<>();
+                        ArrayList<TextEdit> listOfChanges = new ArrayList<>();
 
-                    listOfChanges.add(new TextEdit(wholeDocumentRange(textDocumentService.getFileOfUri(documentUri)), typeWithReplacedVariable));
+                        listOfChanges.add(new TextEdit(wholeDocumentRange(textDocumentService.getFileOfUri(documentUri)), typeWithReplacedVariable));
 
-                    var isTypeImported = false;
+                        var isTypeImported = false;
 
-                    Map<String, List<TextEdit>> changes = new HashMap<>();
-                    changes.put(documentUri, listOfChanges);
+                        Map<String, List<TextEdit>> changes = new HashMap<>();
+                        changes.put(documentUri, listOfChanges);
 
-                    WorkspaceEdit edit = new WorkspaceEdit();
-                    edit.setChanges(changes);
+                        WorkspaceEdit edit = new WorkspaceEdit();
+                        edit.setChanges(changes);
 
-                    CodeAction action = new CodeAction("Insert " + conversionHelper.cleanType(typeInsert.getInsertString()));
-                    action.setKind(CodeActionKind.QuickFix);
-                    action.setEdit(edit);
-                    actions.add(Either.forRight(action));
-                } catch (Exception e) {
-                    logService.log("Error creating Actions, returning empty List. The Error was: " + e.getMessage(), MessageType.Error);
+                        CodeAction action = new CodeAction("Insert " + conversionHelper.cleanType(typeInsert.getInsertString()));
+                        action.setKind(CodeActionKind.QuickFix);
+                        action.setEdit(edit);
+
+                        if(!actions.stream().map(el -> el.getRight().getTitle()).toList().contains(action.getTitle())){
+                            actions.add(Either.forRight(action));
+                        }
+                    } catch (Exception e) {
+                        logService.log("Error creating Actions, returning empty List. The Error was: " + e.getMessage(), MessageType.Error);
+                    }
                 }
             }
+            return actions;
         }
-        return actions;
+
+        return new ArrayList<>();
     }
 
     public List<Either<Command, CodeAction>> handleCodeAction(CodeActionParams params) {

LanguageServer/src/main/java/de/dhbw/handler/SaveHandler.java

@@ -1,6 +1,7 @@
 package de.dhbw.handler;
 
 import com.google.common.base.Stopwatch;
+import com.google.common.base.Verify;
 import de.dhbw.model.DiagnosticsAndTypehints;
 import de.dhbw.service.*;
 import de.dhbw.helper.ConversionHelper;
@@ -51,19 +52,20 @@ public class SaveHandler {
             List<Diagnostic> syntaxErrors = parserService.getDiagnosticsOfErrors(fileInput, didSaveTextDocumentParams.getTextDocument().getUri());
             if (!syntaxErrors.isEmpty()) {
                 clientService.publishDiagnostics(didSaveTextDocumentParams.getTextDocument().getUri(), syntaxErrors);
+            }else {
+                clientService.updateClient();
             }
             logService.log("Found [" + syntaxErrors.size() + "] Syntax Errors in Document.");
 
             if (syntaxErrors.isEmpty()) {
 
                 cacheService.getLastSavedFiles().put(didSaveTextDocumentParams.getTextDocument().getUri(), fileInput);
-                //typeResolver.getCompilerInput(didSaveTextDocumentParams.getTextDocument().getUri(), fileInput);
 
                 if (fileInput == null) {
                     logService.log("[didSave] Input of Text Document is null in TextDocument-Hashmap.", MessageType.Error);
                 }
 
-                ArrayList<LSPVariable> variables = typeResolver.infereInput(didSaveTextDocumentParams.getTextDocument().getUri(), fileInput, false);
+                ArrayList<LSPVariable> variables = typeResolver.infereInput(didSaveTextDocumentParams.getTextDocument().getUri(), fileInput);
                 cacheService.setVariables(variables);
 
                 DiagnosticsAndTypehints diagnosticsAndTypehints = conversionHelper.variablesToDiagnosticsAndTypehints(variables, didSaveTextDocumentParams.getTextDocument().getUri());
@@ -79,16 +81,13 @@ public class SaveHandler {
 
             }
 
-        } catch (Exception e) {
+        } catch (Exception | VerifyError e) {
             logService.log("[didSave] Error trying to get Inlay-Hints and Diagnostics for Client: " + e.getMessage(), MessageType.Error);
 
-            for (StackTraceElement elem : e.getStackTrace()) {
-                logService.log(elem.toString());
-            }
             clientService.showMessage(MessageType.Error, e.getMessage() == null ? "null" : e.getMessage());
             cacheService.updateGlobalMaps(new ArrayList<>(), new ArrayList<>(), didSaveTextDocumentParams.getTextDocument().getUri());
-
-        } finally {
+        }
+        finally {
             sWatch.stop();
             logService.log("[didSave] Finished Calculating in [" + sWatch.elapsed().toSeconds() + "s]", MessageType.Info);
         }

LanguageServer/src/main/java/de/dhbw/helper/TypeResolver.java

@@ -140,7 +140,7 @@ public class TypeResolver {
         return variables;
     }
 
-    public ArrayList<LSPVariable> infereInput(String pathString, String input, boolean a) throws IOException, ClassNotFoundException, URISyntaxException {
+    public ArrayList<LSPVariable> infereInput(String pathString, String input) throws IOException, ClassNotFoundException, URISyntaxException {
         System.setOut(new PrintStream(OutputStream.nullOutputStream()));
 
         LanguageServerInterface languageServerInterface = new LanguageServerInterface();

LanguageServer/src/main/java/de/dhbw/service/ClientService.java

@@ -3,8 +3,12 @@ package de.dhbw.service;
 import org.eclipse.lsp4j.*;
 import org.eclipse.lsp4j.jsonrpc.messages.Either;
 import org.eclipse.lsp4j.services.LanguageClient;
+import org.eclipse.lsp4j.services.LanguageServer;
+
+import de.dhbw.JavaTXLanguageServer;
 
 import java.util.List;
+import java.util.Map;
 
 public class ClientService {
 
@@ -39,21 +43,18 @@ public class ClientService {
         this.client = client;
     }
 
-    public void updateClient(LanguageClient client) {
-        client.refreshInlayHints();
-        client.refreshDiagnostics();
-    }
-
     public void updateClient() {
-        client.refreshInlayHints();
-        client.refreshDiagnostics();
+        if (JavaTXLanguageServer.capabilities.getWorkspace().getInlayHint() != null)
+            client.refreshInlayHints();
+        if (JavaTXLanguageServer.capabilities.getWorkspace().getDiagnostics() != null)
+            client.refreshDiagnostics();
     }
 
     public LanguageClient getClient() {
         return client;
     }
 
-    public void startLoading(String taskName, String title, LanguageClient client) {
+    public void startLoading(String taskName, String title) {
         Either<String, Integer> token = Either.forLeft(taskName);
         client.createProgress(new WorkDoneProgressCreateParams(token));
 
@@ -67,7 +68,7 @@ public class ClientService {
 
     }
 
-    public void stopLoading(String taskName, String title, LanguageClient client) {
+    public void stopLoading(String taskName, String title) {
         Either<String, Integer> token = Either.forLeft(taskName);
         WorkDoneProgressEnd end = new WorkDoneProgressEnd();
         end.setMessage(title);

README.md

@@ -63,7 +63,8 @@ The Language Server in itself can be used for any Client. The Clients task is to
 If you make changes in the Compiler Interface, you have to change the jar and therefore the Dependency in the Java TX Language Server
 You can follow this steps:
 1. package the JavaTX Compiler
-2. take the Jar-File and copy it into the /lib Folder
+2. create a lib Folder at ./LangaugeServer -> ./LanguageServer/lib
+2. take the Jar-File and copy it into the /lib Folder at 
 3. execute this Maven command to add the Jar in your local Repository: ```mvn install:install-file   -Dfile=lib/JavaTXcompiler-0.1-jar-with-dependencies.jar   -DgroupId=de.dhbwstuttgart   -DartifactId=JavaTXcompiler   -Dversion=0.1   -Dpackaging=jar```
 4. run ```maven clean```, ```validate``` and ```install``` to load the new Dependency
 5. you can now package the Language Server or change the code accordingly.