lahodaj commented on code in PR #6813:
URL: https://github.com/apache/netbeans/pull/6813#discussion_r1420611345


##########
java/java.lsp.server/vscode/src/extension.ts:
##########
@@ -550,50 +550,76 @@ export function activate(context: ExtensionContext): 
VSNetBeansAPI {
             await 
commands.executeCommand('nbls:Tools:org.netbeans.modules.cloud.oracle.actions.AddADBAction');
         }
     }));
-    const mergeWithLaunchConfig = (dconfig : vscode.DebugConfiguration) => {
-        const folder = vscode.workspace.workspaceFolders?.[0];
-        const uri = folder?.uri;
-        if (uri) {
-            const launchConfig = workspace.getConfiguration('launch', uri);
-            // retrieve values
-            const configurations = launchConfig.get('configurations') as 
(any[] | undefined);
-            if (configurations) {
-                for (let config of configurations) {
-                    if (config["type"] == dconfig.type) {
-                        for (let key in config) {
-                            if (!dconfig[key]) {
-                                dconfig[key] = config[key];
-                            }
-                        }
-                        break;
-                    }
-                }
+
+    async function findRunConfiguraiton(uri : vscode.Uri) : 
Promise<vscode.DebugConfiguration|undefined> {
+        // do not invoke debug start with no (java+) configurations, as it 
would probably create an user prompt
+        let cfg = vscode.workspace.getConfiguration("launch");
+        let c = cfg.get('configurations');
+        if (!Array.isArray(c)) {
+            return undefined;
+        }
+        let f = c.filter((v) => v['type'] === 'java+');
+        if (!f.length) {
+            return undefined;
+        }
+        class P implements vscode.DebugConfigurationProvider {
+            config : vscode.DebugConfiguration | undefined;
+            
+            resolveDebugConfigurationWithSubstitutedVariables(folder: 
vscode.WorkspaceFolder | undefined, debugConfiguration: 
vscode.DebugConfiguration, token?: vscode.CancellationToken): 
vscode.ProviderResult<vscode.DebugConfiguration> {
+                this.config = debugConfiguration;
+                return undefined;
             }
         }
+        let provider = new P();
+        let d = vscode.debug.registerDebugConfigurationProvider('java+', 
provider);
+        // let vscode to select a debug config
+        return await 
vscode.commands.executeCommand('workbench.action.debug.start', { config: {
+            type: 'java+',
+            mainClass: uri.toString()
+        }, noDebug: true}).then((v) => {
+            d.dispose();
+            return provider.config;
+        }, (err) => {
+            d.dispose();
+            return undefined;
+        });
     }
 
     const runDebug = async (noDebug: boolean, testRun: boolean, uri: any, 
methodName?: string, launchConfiguration?: string, project : boolean = false, ) 
=> {
-        const docUri = contextUri(uri);
+    const docUri = contextUri(uri);
         if (docUri) {
-            const workspaceFolder = 
vscode.workspace.getWorkspaceFolder(docUri);
-            const debugConfig : vscode.DebugConfiguration = {
+            // attempt to find the active configuration in the vsode launch 
settings; undefined if no config is there.
+            let debugConfig : vscode.DebugConfiguration = await 
findRunConfiguraiton(docUri) || {

Review Comment:
   Nit:
   ```suggestion
               let debugConfig : vscode.DebugConfiguration = await 
findRunConfiguration(docUri) || {
   ```



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