[Bug]: Hop GUI - cannot select variables from list of defined ones

[dave-csc]

Apache Hop version?

2.8.0

Java version?

openjdk 21.0.2 2024-01-16

Operating system

Linux

What happened?

In any transform or action you can use CTRL+SPACE in a supported input field to show the list of defined variables.

However, you can mouse scroll the list but you can't select one of those variables: the list disappears and the input field stays blank. The following error is reported on the Linux terminal:

Gdk-Message: 09:34:50.027: Window 0x7872b27a4230 is a temporary window without parent, application will not be able to position it on screen.

Something similar happens when you hit CTRL+SPACE, and then type some letters in order to find the variable name.

Variable replacements are actually working, but the only way to insert them is to write their syntax ${variable_name} manually.

Issue Priority

Priority: 2

Issue Component

Component: Hop Gui

[dave-csc]

Update: the issue still holds in version 2.9.0 and 2.10.0 (snapshot 2024-06-27) too

[hansva]

which Linux distro and display manager? we will probably need to know to reproduce.

[dave-csc]

I'm using Ubuntu 22.04.4 LTS on Virtualbox (Windows 10 host). The display manager is the default one (GDM) without any particular configuration.

Problem occurs with both JDK 21 (Hop 2.8.0-2.9.0) and JDK 17 (Hop 2.10.0 snapshot).

[hansva]

fixed by #4720