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NullPointerException on Linux if XDG_CURRENT_DESKTOP is not defined #54
Description
Depending on a Linux system setup, the XDG_CURRENT_DESKTOP environment variable may not be defined. However, this library expects it to be present, using the returned value without checking for null, which results in throwing NullPointerException, which the calling code may not expect and crash with an error like this:
(...)
Caused by: java.lang.NullPointerException: Cannot invoke "String.toLowerCase()" because the return value of "com.jthemedetecor.util.OsInfo.getCurrentLinuxDesktopEnvironmentName()" is null
at launcher//com.jthemedetecor.util.OsInfo.isGnome(OsInfo.java:52)
at launcher//com.jthemedetecor.OsThemeDetector.createDetector(OsThemeDetector.java:62)
at launcher//com.jthemedetecor.OsThemeDetector.getDetector(OsThemeDetector.java:50)
(...)
I think EmptyDetector should be used here, like it is in other unsupported environments.
Activity
WasabiThumb commentedon Sep 2, 2026
Slyly noting that JDaybreak inherently does not have this issue as its detection mechanism doesn't use
XDG_CURRENT_DESKTOPat all, feel free to give it a spin in the meantime