"ant test" in windows

install-gems:

run-junit-interpreted-short:
     [echo] compile=OFF, jit.threshold=20, jit.maxsize=1000000000, jit.max=-1, objectspace=true threadpool=false reflection=fa
n=ruby1_8
    [junit] Testsuite: org.jruby.test.ScriptTestSuite
    [junit] Tests run: 73, Failures: 0, Errors: 0, Time elapsed: 12.918 sec
    [junit]
    [junit] Testsuite: org.jruby.test.JRubyTestSuite
t    [junit] Error:
    [junit] test_chmod_when_chdir(TestFile):
    [junit] Errno::EEXIST: File exists - C:\Users\packrd\AppData\Local\Temp\somewhere.4664.56855
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:243:in `fu_mkdir'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:217:in `mkdir_p'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:215:in `reverse_each'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:215:in `mkdir_p'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:201:in `each'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:201:in `mkdir_p'
    [junit]     ./test/test_file.rb:1009:in `test_chmod_when_chdir'
    [junit] Failure:
    [junit] test_umask_respects_existing_umask_value(TestFile)
    [junit]     [./test/test_file.rb:839:in `test_umask_respects_existing_umask_value'
    [junit]      ./test/test_file.rb:839:in `open'
    [junit]      ./test/test_file.rb:839:in `test_umask_respects_existing_umask_value']:
    [junit] <122> expected but was
    [junit] <0>.
    [junit] )
    [junit] Tests run: 37, Failures: 1, Errors: 0, Time elapsed: 40.899 sec
    [junit]
    [junit] Testcase: test_file(org.jruby.test.TestUnitTestSuite$ScriptTest):   FAILED
    [junit] Faults encountered running test\test_file, complete output follows:
    [junit] Error:
    [junit] test_chmod_when_chdir(TestFile):
    [junit] Errno::EEXIST: File exists - C:\Users\packrd\AppData\Local\Temp\somewhere.4664.56855
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:243:in `fu_mkdir'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:217:in `mkdir_p'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:215:in `reverse_each'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:215:in `mkdir_p'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:201:in `each'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:201:in `mkdir_p'
    [junit]     ./test/test_file.rb:1009:in `test_chmod_when_chdir'
    [junit] Failure:
    [junit] test_umask_respects_existing_umask_value(TestFile)
    [junit]     [./test/test_file.rb:839:in `test_umask_respects_existing_umask_value'
    [junit]      ./test/test_file.rb:839:in `open'
    [junit]      ./test/test_file.rb:839:in `test_umask_respects_existing_umask_value']:
    [junit] <122> expected but was
    [junit] <0>.
    [junit]
    [junit] junit.framework.AssertionFailedError: Faults encountered running test\test_file, complete output follows:
    [junit] Error:
    [junit] test_chmod_when_chdir(TestFile):
    [junit] Errno::EEXIST: File exists - C:\Users\packrd\AppData\Local\Temp\somewhere.4664.56855
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:243:in `fu_mkdir'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:217:in `mkdir_p'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:215:in `reverse_each'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:215:in `mkdir_p'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:201:in `each'
    [junit]     C:/dev/ruby/downloads/jruby/lib/ruby/1.8/fileutils.rb:201:in `mkdir_p'
    [junit]     ./test/test_file.rb:1009:in `test_chmod_when_chdir'
    [junit] Failure:
    [junit] test_umask_respects_existing_umask_value(TestFile)
    [junit]     [./test/test_file.rb:839:in `test_umask_respects_existing_umask_value'
    [junit]      ./test/test_file.rb:839:in `open'
    [junit]      ./test/test_file.rb:839:in `test_umask_respects_existing_umask_value']:
    [junit] <122> expected but was
    [junit] <0>.
    [junit]
    [junit]     at org.jruby.test.TestUnitTestSuite$ScriptTest.runTest(TestUnitTestSuite.java:224)
    [junit]
    [junit]

BUILD FAILED
C:\dev\ruby\downloads\jruby\build.xml:769: The following error occurred while executing this line:
C:\dev\ruby\downloads\jruby\build.xml:919: The following error occurred while executing this line:
C:\dev\ruby\downloads\jruby\build.xml:867: Tests failed

Total time: 1 minute 28 seconds