Fix memory leak: Remove disposed Project from static maps

src/main/java/org/wso2/lsp4intellij/IntellijLanguageClient.java

@@ -346,6 +346,15 @@ public static void removeWrapper(LanguageServerWrapper wrapper) {
                 extToLanguageWrapper.remove(extProjectPair);
                 extToServerDefinition.remove(extProjectPair);
             }
+            // Also remove from projectToLanguageWrappers to prevent memory leaks
+            String projectUri = FileUtils.pathToUri(new File(wrapper.getProjectRootPath()).getAbsolutePath());
+            Set<LanguageServerWrapper> wrappers = projectToLanguageWrappers.get(projectUri);
+            if (wrappers != null) {
+                wrappers.remove(wrapper);
+                if (wrappers.isEmpty()) {
+                    projectToLanguageWrappers.remove(projectUri);
+                }
+            }
         } else {
             LOG.error("No attached projects found for wrapper");
         }

src/main/java/org/wso2/lsp4intellij/client/languageserver/wrapper/LanguageServerWrapper.java

@@ -696,6 +696,14 @@ public void removeWidget() {
         getWidget().ifPresent(LSPServerStatusWidget::dispose);
     }
 
+    /**
+     * Cleanup when the project is disposed. This removes the project from static maps
+     * to prevent memory leaks.
+     */
+    public void dispose() {
+        projectToLanguageServerWrapper.remove(project);
+    }
+
     /**
      * Disconnects an editor from the LanguageServer
      *

src/main/java/org/wso2/lsp4intellij/listeners/LSPProjectManagerListener.java

@@ -45,7 +45,9 @@ public void projectClosing(@NotNull Project project) {
                 return;
             }
             languageServerWrappers.forEach(wrapper -> {
+                wrapper.stop(true);
                 wrapper.removeWidget();
+                wrapper.dispose();
                 IntellijLanguageClient.removeWrapper(wrapper);
             });
     }