### Bug Description Hi! I think I've found a small bug with the Jlink plugin - https://github.com/canonical/craft-parts/blob/main/craft_parts/plugins/jlink_plugin.py#L128-L133 Here, we're trying to add the paths to jars to CPATH variable. However, in bash, piped operator makes the [loop execute within the subshell](https://stackoverflow.com/questions/124167/bash-variable-scope). This means that the CPATH within the loop gets updated - however, outside the loop, CPATH is not affected. The following code explains the behavior: ``` find ${CRAFT_PART_BUILD}/tmp -type f -name *.jar | while IFS= read -r file; do CPATH=$CPATH:${file} echo $CPATH # PRINTS CPATH APPENDED CORRECTLY done echo $CPATH # NOT UPDATED, PRINTS "." ``` Currently, Jlink plugin fails due to this small issue :) ### To Reproduce Jlink produces invalid JVM at the moment without needing to reproduce. ### part yaml ```shell ``` ### Relevant log output ```shell N/A ```