emmerichsb opened a new issue, #8639: URL: https://github.com/apache/netbeans/issues/8639
### Apache NetBeans version Apache NetBeans 26 ### What happened Accessing the MySQL-Database with a Python script fails when started in Netbeans with the Error-Message "java.lang.NullPointerException: Cannot invoke "java.util.List.stream()" because the return value of "java.util.concurrent.CompletableFuture.get()" is null". The Output window will not show anything, although there are some control calls to "print" before the db connection sequence starts. In contrast, running the same program in a command window (Win11) will be performed successfully! [messages.log](https://github.com/user-attachments/files/21121084/messages.log) About Info: Product Version: Apache NetBeans IDE 26 Java: 22.0.1; Java HotSpot(TM) 64-Bit Server VM 22.0.1+8-16 Runtime: Java(TM) SE Runtime Environment 22.0.1+8-16 System: Windows 11 version 10.0 running on amd64; UTF-8; de_DE (nb) User directory: C:\Users\Emmerich\AppData\Roaming\NetBeans\26 Cache directory: C:\Users\Emmerich\AppData\Local\NetBeans\Cache\26 ### Language / Project Type / NetBeans Component Python project ### How to reproduce Complete the access parameters in following script with your own database access arguments: [schuelerliste.zip](https://github.com/user-attachments/files/21121587/schuelerliste.zip) and 1. run it in Netbeans with Python extension (3.12.2, in venv) --> Error should happen. 2. run it in (Windows-) Command window --> Error shouldn't happen. ### Did this work correctly in an earlier version? No / Don't know ### Operating System Microsoft Windows 11 ### JDK Java(TM) SE Runtime Environment 22.0.1+8-16 ### Apache NetBeans packaging Apache NetBeans provided installer ### Anything else The Error is permanent. Log file: [messages.log](https://github.com/user-attachments/files/21121761/messages.log) ### Are you willing to submit a pull request? No -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@netbeans.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: notifications-unsubscr...@netbeans.apache.org For additional commands, e-mail: notifications-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists