Issues with v2.17

[schaubl]

With SlipStream v2.17 I have the following stacktraces in the log:

2015-10-07T17:05:51.130+0200 FINE sun.net.httpserver.ServerImpl logReply GET /metrics/render?target=keepLastValue(slipstream.super.usage.cpu-nb.*%2C24)&f<TRUNCATED> [200  OK] () 
 2015-10-07T17:05:51.131+0200 SEVERE org.restlet.engine.adapter.ServerAdapter commit An exception occured writing the response entity 

java.io.IOException: too many bytes to write to stream
    at sun.net.httpserver.FixedLengthOutputStream.write(FixedLengthOutputStream.java:76)
    at sun.net.httpserver.PlaceholderOutputStream.write(ExchangeImpl.java:444)
    at org.restlet.engine.io.IoUtils.copy(IoUtils.java:107)
    at org.restlet.engine.application.DecodeRepresentation.write(DecodeRepresentation.java:252)
    at org.restlet.engine.adapter.ServerCall.writeResponseBody(ServerCall.java:519)
    at org.restlet.engine.adapter.ServerCall.sendResponse(ServerCall.java:463)
    at org.restlet.engine.adapter.ServerAdapter.commit(ServerAdapter.java:196)
    at org.restlet.engine.adapter.HttpServerHelper.handle(HttpServerHelper.java:153)
    at org.restlet.engine.connector.HttpServerHelper$1.handle(HttpServerHelper.java:73)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79)
    at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:82)
    at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:675)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79)
    at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:647)
    at sun.net.httpserver.ServerImpl$DefaultExecutor.execute(ServerImpl.java:158)
    at sun.net.httpserver.ServerImpl$Dispatcher.handle(ServerImpl.java:431)
    at sun.net.httpserver.ServerImpl$Dispatcher.run(ServerImpl.java:396)
    at java.lang.Thread.run(Thread.java:745)
2015-10-07T17:05:51.131+0200 WARNING org.restlet.engine.adapter.ServerAdapter commit Unable to send error response 

java.io.IOException: headers already sent
    at sun.net.httpserver.ExchangeImpl.sendResponseHeaders(ExchangeImpl.java:204)
    at sun.net.httpserver.HttpExchangeImpl.sendResponseHeaders(HttpExchangeImpl.java:86)
    at org.restlet.engine.connector.HttpExchangeCall.writeResponseHead(HttpExchangeCall.java:157)
    at org.restlet.engine.adapter.ServerCall.sendResponse(ServerCall.java:459)
    at org.restlet.engine.adapter.ServerAdapter.commit(ServerAdapter.java:214)
    at org.restlet.engine.adapter.HttpServerHelper.handle(HttpServerHelper.java:153)
    at org.restlet.engine.connector.HttpServerHelper$1.handle(HttpServerHelper.java:73)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79)
    at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:82)
    at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:675)
    at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:79)
    at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:647)
    at sun.net.httpserver.ServerImpl$DefaultExecutor.execute(ServerImpl.java:158)
    at sun.net.httpserver.ServerImpl$Dispatcher.handle(ServerImpl.java:431)
    at sun.net.httpserver.ServerImpl$Dispatcher.run(ServerImpl.java:396)
    at java.lang.Thread.run(Thread.java:745)

And the server stop to serve the UI when I run an image (just after the redirection to the dashboard page) and Nginx returns a 504 Gateway Timeout
On the log file I can see that SlipStream is still running and doing tasks like describe instances but nothing from Restlet.

Notes:

• SSCLJ was not running.
• I have only one thread to serve HTTP requests so on an installation with multiple threads it may not block directly after the first image execution.