Message12120

I have tested this idea and had to make two changes in test_java_integration, where running a proxy now looks like:

            cmd = [os.path.join(System.getProperty("java.home"), "bin", "java"),
                   "-Dpython.path=" + os.path.dirname(__file__),
                   "-classpath", classpath, "BarkTheDog"]
            ...
                subprocess.check_output(cmd, universal_newlines=True, stderr=subprocess.STDOUT)

It's shorter as we do not have to prepare JYTHONPATH in a clone of os.environ.

Because we might decide it is a bad idea, I'm parking it here as a patch, rather than committing it directly.