CLI command: Don't throw error on empty nodes

[log1-c]

Describe the bug

When running the check command against a process with an empty node the check writes an error message into the check output but keeps on working otherwise:

ERROR: ErrorException in /usr/share/icingaweb2/modules/businessprocess/application/clicommands/ProcessCommand.php:198 with message: Undefined offset: 128

To Reproduce

Have a process with an empty node:

Expected behavior

Don't throw error on empty nodes.

Your Environment

Icinga Web 2 2.11.3
PHP 7.3.33
Module version 2.4.1, but as the code is the same in 2.5.0 I guess an update wouldn't solve this.

[sukhwinder33445]

Hi @log1-c,
can you please share the configuration or explain the steps to reproduce this issue?

I could reproduce it if I add an empty sub node and then check the status of the parent node. But your screenshot does not contain a sub node.

[log1-c]

I could reproduce it if I add an empty sub node and then check the status of the parent node. But your screenshot does not contain a sub node.

That is exactly the setup. The screenshot area is too small (sorry), there is a root node above.
Here is a better one

1. is the business process file
2. is one of the configured processes
3. is the subnode of the process where the check is producing the output
   "Application is the emtpy "sub-sub-node"