RFR: 8352935: Launcher should not add $JDK/../lib to LD_LIBRARY_PATH

[David Holmes]

On Tue, 1 Apr 2025 09:13:45 GMT, Joachim Kern <jkern at openjdk.org> wrote:

> In the JDK launcher, there is a codepath which would set/modify the LD_LIBRARY_PATH. This happens unconditionally on AIX and Linux/musl and can also happen on other Linux platforms if an LD_LIBRARY_PATH is pre-set which contains a libjvm.so.
> 
> The LD_LIBRARY_PATH is set to $JVMPATH:$JDK/lib:$JDK/../lib. The last part of this, $JDK/../lib, seems to be a remnant of times when there was a jre subfolder in a JDK deployment. So it should likely be removed.

Yes this was related to JRE but was changed to JDK by JDK-8343040. It does appear to be trying to find the upper lib directory in:

JAVA_HOME/bin

given the JRE location. Hence it is meaningless (and potentially "dangerous"!) when given the JDK/JAVA_HOME location

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PR Comment: https://git.openjdk.org/jdk/pull/24351#issuecomment-2774778621