fix(java): fix _java_find_sourcepath to store results in array

Author: akinomyoga

completions/java

@@ -50,6 +50,8 @@ _java_find_sourcepath()
         _java_find_classpath
         sourcepath=$classpath
     fi
+
+    _comp_split -F : sourcepath "$sourcepath"
 }
 
 # available classes completion
@@ -107,11 +109,12 @@ _comp_cmd_java__packages()
 
     # find which sourcepath to use
     _java_find_sourcepath
+    ((${#sourcepath[@]})) || return 0
 
     # convert package syntax to path syntax
     cur=${cur//.//}
     # parse each sourcepath element for packages
-    for i in ${sourcepath//:/ }; do
+    for i in "${sourcepath[@]}"; do
         if [[ -d $i ]]; then
             COMPREPLY+=($(command ls -F -d "$i/$cur"* 2>/dev/null |
                 command sed -e 's|^'"$i"'/||'))