RFR: JDK-8036600 - JNI exception pending in src/jdk/src/windows/native/sun/net/www/protocol/http/ntlm/NTLMAuthSequence.c

[Mark Sheppard]

Hi
    Please oblige and review the following changes
http://cr.openjdk.java.net/~msheppar/8036600/webrev/
which address the issues raised in
https://bugs.openjdk.java.net/browse/JDK-8036600

summary:
main changes are to check JNI return values, malloc returns and raise 
JNU_ThrowOutOfMemoryError
as needed

regards
Mark