Fatal: Launch Error: Could not launch JNLP file.

[YongY5]

I'm encountering an issue when attempting to open a JNLP file using javaws.bat. Occasionally, it returns a Fatal Launch Error: "Could not launch JNLP file." This error seems to occur inconsistently. When it does happen, simply restarting my PC resolves the issue. I'm unable to determine the root cause of this problem. I've already collaborated with my network team, and they confirmed that there are no blocks preventing the launch of .jnlp file applications. Any guidance on resolving this issue would be greatly appreciated.

OpenJDK : Azul Zulu 8.76.17(8u402),64-bit
IcedTea web: 1.8.8

alex_Log.txt

[sclassen]

This happens when a previously run instance failed to clean up the lock file and another process uses the port defined in the lock file.

Lock files are created in {TEMP_DIR}/usrName/netx/locks

If the problem occurs try to find the lock file and remove it to avoid a restart of the system

[YongY5]

@sclassen Thank you for your input. However, I couldn't locate the path you mentioned. Could you please provide more detail on the path? I tried looking in the C drive -> Temp folder, but I couldn't find the "username -> netx" folders. I am using Window OS.