If HTTP/2 server sends an invalid frame, then a client resets a stream and hangs (if no timeout was set).

java/net/httpclient/http2/SettingsTest.java test from JDK-8157104 reproduces this.

http://cr.openjdk.java.net/~asmotrak/8157104/webrev.00/test/java/net/httpclient/http2/SettingsTest.java.html

SettingsTest.java fails with HttpTimeoutException since timeout was set. But it might be better if it threw an IOException which might indicate a PROTOCOL_ERROR

https://tools.ietf.org/html/rfc7540#section-7