-export ALL_MAVEN_BUILD_DIRS_Z=$(mktemp)# A file containing a null-terminated list of all root build directories -- directories that have parent pom files
-export ALL_MAVEN_POM_DIRS_Z=$(mktemp)# Intermediate file, containing a null-terminated list of all directories containing a pom.xml file
-export ALL_MAVEN_CHILD_MODULES_LF=$(mktemp)# Intermediate file, containing a linefeed-terminated list of all directories containing a known submodule
# This shell script is used to list out the maven submodules (of the current working directory) and append them to $ALL_MAVEN_CHILD_MODULES_LF
# As an optimization, it does not invoke maven on a directory that is already known to be a submodule