Cleaned up timeouts on Jython. Related to #1931.

Now that IronPython has its own timeout implementation, Jython was the
only one using timeoutthread module and nobody used stoppablethread it
used when not run on Jython. Moved Jython related stuff to new module
and removed not used modules.

Jython and IronPython thread usage is very similar, and it would be
pretty easy to create facades to avoid duplication. Decided to keep
them separate because that would require more code, including a new
module, and added abstraction level would make things a little more
complicated.

atest/robot/core/timeouts.robot

@@ -1,5 +1,4 @@
 *** Settings ***
-Documentation   Tests for test case and user keyword timeouts. Using timeouts with variables and invalid timeouts is tested in 'metadata.html'. It seems that on Cygwin Python tests now and then fail with an error message "error: can't allocate lock"
 Suite Setup     Run Tests  ${EMPTY}  core/timeouts.robot
 Suite Teardown  Remove Directory  ${TIMEOUT TEMP}  recursive
 Force Tags      regression

src/robot/running/timeouts/__init__.py

@@ -21,7 +21,7 @@
 if IRONPYTHON:
     from .ironpython import Timeout
 elif JYTHON:
-    from .timeoutthread import Timeout
+    from .jython import Timeout
 elif WINDOWS:
     from .timeoutwin import Timeout
 else:

src/robot/running/timeouts/ironpython.py

@@ -23,17 +23,18 @@
 class Timeout(object):
 
     def __init__(self, timeout, error):
-        self._timeout = timeout * 1000
+        self._timeout = timeout
         self._error = error
 
     def execute(self, runnable):
         runner = Runner(runnable)
         thread = Thread(ThreadStart(runner))
+        thread.IsBackground = True
         thread.Start()
-        if thread.Join(self._timeout):
-            return runner.get_result()
-        thread.Abort()
-        raise TimeoutError(self._error)
+        if not thread.Join(self._timeout * 1000):
+            thread.Abort()
+            raise TimeoutError(self._error)
+        return runner.get_result()
 
 
 class Runner(object):

src/robot/running/timeouts/jython.py

@@ -0,0 +1,56 @@
+#  Copyright 2008-2015 Nokia Solutions and Networks
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+import sys
+
+from java.lang import Thread, Runnable
+
+from robot.errors import TimeoutError
+
+
+class Timeout(object):
+
+    def __init__(self, timeout, error):
+        self._timeout = timeout
+        self._error = error
+
+    def execute(self, runnable):
+        runner = Runner(runnable)
+        thread = Thread(runner, name='RobotFrameworkTimeoutThread')
+        thread.setDaemon(True)
+        thread.start()
+        thread.join(int(self._timeout * 1000))
+        if thread.isAlive():
+            thread.stop()
+            raise TimeoutError(self._error)
+        return runner.get_result()
+
+
+class Runner(Runnable):
+
+    def __init__(self, runnable):
+        self._runnable = runnable
+        self._result = None
+        self._error = None
+
+    def run(self):
+        try:
+            self._result = self._runnable()
+        except:
+            self._error = sys.exc_info()
+
+    def get_result(self):
+        if not self._error:
+            return self._result
+        raise self._error[0], self._error[1], self._error[2]