A solution to this problem has been posted on the Play mailing list: There’s a patch that solves the problem.
diff -r --unified play-2.0-orig/framework/build play-2.0-cygwin/framework/build
--- play-2.0-orig/framework/build 2012-03-12 20:25:28.000000000 -0700
+++ play-2.0-cygwin/framework/build 2012-06-15 17:56:57.436000000 -0700
@@ -8,4 +8,4 @@
DEBUG_PARAM="-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=${JPDA_PORT}"
fi
-java ${DEBUG_PARAM} -Xms512M -Xmx1536M -Xss1M -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=384M -Dfile.encoding=UTF8 -Dplay.version="${PLAY_VERSION}" -Dsbt.ivy.home=`dirname $0`/../repository -Dplay.home=`dirname $0` -Dsbt.boot.properties=`dirname $0`/sbt/sbt.boot.properties -jar `dirname $0`/sbt/sbt-launch.jar "$@"
\ No newline at end of file
+java ${DEBUG_PARAM} -Xms512M -Xmx1536M -Xss1M -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=384M -Dfile.encoding=UTF8 -Dplay.version="${PLAY_VERSION}" -Dsbt.ivy.home=`dirname $0`/../repository -Dplay.home=`dirname $0` -Dsbt.boot.properties=$BOOTPROP`dirname $0`/sbt/sbt.boot.properties -jar `dirname $0`/sbt/sbt-launch.jar "$@"
diff -r --unified play-2.0-orig/play play-2.0-cygwin/play
--- play-2.0-orig/play 2012-03-12 20:22:03.000000000 -0700
+++ play-2.0-cygwin/play 2012-06-15 20:48:41.624800000 -0700
@@ -1,5 +1,23 @@
#! /usr/bin/env sh
+case `uname` in
+ CYGWIN*)
+ function dirname {
+ cygpath -m `command dirname $@`
+ }
+ typeset -fx dirname
+ export BOOTPROP="file:///"
+ ;;
+ MINGW32*)
+ function dirname { (cd `command dirname $@`; pwd -W) }
+ typeset -fx dirname
+ export BOOTPROP="file:///"
+ ;;
+ *)
+ export BOOTPROP=""
+ ;;
+esac
+
PRG="$0"
while [ -h "$PRG" ] ; do
PRG=`readlink "$PRG"`
@@ -54,5 +72,5 @@
fi
else
- java -Dsbt.ivy.home=$dir/repository -Dplay.home=$dir/framework -Dsbt.boot.properties=$dir/framework/sbt/play.boot.properties -jar $dir/framework/sbt/sbt-launch.jar "$@"
+ java -Dsbt.ivy.home=$dir/repository -Dplay.home=$dir/framework -Dsbt.boot.properties=$BOOTPROP$dir/framework/sbt/play.boot.properties -jar $dir/framework/sbt/sbt-launch.jar "$@"
fi