old_contents: import shutil
  from os.path import join
  import unittest
  from unittest.mock import patch
  import tempfile
  
  from javatar.utils.javatar_java import is_jdk_dir
  
  create_file = lambda filename: open(filename, 'w').write('')
  
  
  class TestJava(unittest.TestCase):
      @patch('javatar.utils.javatar_java.get_settings',
             return_value={'run': 'java', 'compile': 'javac'})
      def test_is_jdk_dir(self):
          direct = tempfile.mkdtemp()
  
          self.assertFalse(is_jdk_dir(direct))
  
          create_file(join(direct, 'java'))
          self.assertFalse(is_jdk_dir(direct))
  
          create_file(join(direct, 'javac'))
          self.assertTrue(is_jdk_dir(direct))
  
          shutil.rmtree(direct)
  
new_contents: import shutil
  from os.path import join
  import unittest
  from unittest.mock import patch
  import tempfile
  
  from Javatar.utils.javatar_java import is_jdk_dir
  
  create_file = lambda filename: open(filename, 'w').write('')
  
  
  class TestJava(unittest.TestCase):
      @patch('Javatar.utils.javatar_java.get_settings',
             return_value={'run': 'java', 'compile': 'javac'})
      def test_is_jdk_dir(self):
          direct = tempfile.mkdtemp()
  
          self.assertFalse(is_jdk_dir(direct))
  
          create_file(join(direct, 'java'))
          self.assertFalse(is_jdk_dir(direct))
  
          create_file(join(direct, 'javac'))
          self.assertTrue(is_jdk_dir(direct))
  
          shutil.rmtree(direct)
  
subject: Correct module paths