fix for #22461 jar with empty ClassPath attribute

Author: philwalk

compiler/src/dotty/tools/dotc/classpath/ClassPathFactory.scala

@@ -69,8 +69,10 @@ class ClassPathFactory {
           a <- ClassPath.expandManifestPath(file.absolutePath)
           path = java.nio.file.Paths.get(a.toURI()).nn
           if Files.exists(path)
+          entry = AbstractFile.getFile(path)
+          if Option(entry).nonEmpty
         yield
-          newClassPath(AbstractFile.getFile(path))
+          newClassPath(entry)
       else
         Seq.empty
 

dist/libexec/common-shared

@@ -6,21 +6,16 @@
 # *  Credits: This script is based on the script generated by sbt-pack.
 # *--------------------------------------------------------------------------*/
 
-if [ -e /usr/bin/tty -a "`tty`" != "not a tty" -a ! -p /dev/stdin ]; then
-  isterminal=1
-  # save terminal settings
-  saved_stty=$(stty -g 2>/dev/null)
-  # clear on error so we don't later try to restore them
-  if [[ ! $? ]]; then
-    saved_stty=""
-  fi
-else
-  isterminal=0
+# save terminal settings
+saved_stty=$(stty -g 2>/dev/null)
+# clear on error so we don't later try to restore them
+if [[ ! $? ]]; then
+  saved_stty=""
 fi
 
 # restore stty settings (echo in particular)
 function restoreSttySettings() {
-  [ $isterminal -eq 1 ] && stty $saved_stty
+  stty $saved_stty
   saved_stty=""
 }
 
@@ -66,7 +61,7 @@ if [[ ${cygwin-} || ${mingw-} || ${msys-} ]]; then
   CYGPATHCMD=`which cygpath 2>/dev/null`
   case "$TERM" in
     rxvt* | xterm* | cygwin*)
-      [ $isterminal -eq 1 ] && stty -icanon min 1 -echo
+      stty -icanon min 1 -echo
       JAVA_OPTS="$JAVA_OPTS -Djline.terminal=unix"
     ;;
   esac