HI Ulrich,
now we are not getting the tunnel exception but below is the issue.
below are the latest logs with the error.. so we are stuck here, what could be the root cause of this?
2016-01-26 12:08:20,572#DEBUG#org.apache.coyote.http11.Http11Processor#http-bio-8443-exec-14# #Error parsing HTTP request header
java.io.EOFException: Unexpected EOF read on the socket
at org.apache.coyote.http11.Http11Processor.setRequestLineReadTimeout(Http11Processor.java:169)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:991)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:812)
-Madhav