Serially copy JARs when flattening libdir

For some applications, multiple copies of JARs may exist in
JAVA_LIB_DIR. If >1 of those filenames end up collated into the same
`cp` invocation, the result will fail ("cp: will not overwrite
just-created...)

The solution is to serially invoke cp, one per library. This will
cause duplicate filenames to overwrite, which is fine if they are
the same library, but might mask a different problem if they aren't.

Signed-off-by: Jonathan Dowland <[email protected]>

Author: jmtd

modules/jlink/artifacts/opt/jboss/container/java/jlink/mkdeps.sh

@@ -8,8 +8,11 @@ function generate_deps() {
   mkdir dependencies
 
   if [[ -v JAVA_LIB_DIR ]]; then
-      # copy dependencies found in libs to dependencies
-      find $JAVA_LIB_DIR -type f -name '*.jar' -print0 | xargs -r0 cp -vt dependencies
+      # Serially copy all library JARsinto a flat directory. Serially as we may
+      # have multiple libs with the same name; in which case, we clobber all but
+      # one rather than fail the script
+      find $JAVA_LIB_DIR -type f -name '*.jar' -exec cp -vt dependencies {} \;
+      
       echo "Working with: "
       echo $JAVA_APP_JAR
       echo $JAVA_LIB_DIR
@@ -26,4 +29,4 @@ function generate_deps() {
       > deps.txt
     cat deps.txt
   fi
-}
+}