server does not work with JDK 9+

[udalrich]

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• [ x] I have included exact bug reproduction instructions

When I try to start ensime with java 10, it throws an exception. It looks like a library is attempting to do a privileged access which is not longer allowed in java 9+.

The contents of the ENSIME- buffer is attached. I updated ensime today. The .ensime file was generated by the maven plugin, with one modification to let it find the JDK home under java 10.

To reproduce:

1. Install Java 10. Java 9+ probably shows the same problem.
2. Create a .ensime file
3. Open a scala buffer.
4. M-x ensime

ensime-server.log

[udalrich]

I saw that there was a newer version of the oriented graphed, so I updated orientVersion to 3.0.7, recreated my .ensime and tried to start ensime again.

That got past the first error, but now it fails trying to find a FileCheck class.

ensime-server.log