RFR 8225474: JDI connector accept fails "Address already in use" with concurrent listeners

[Andrew Leonard]

Hi,
Please can I request a sponsor and review of this patch for JDK-8225474. A 
problem that we have seen intermittently with JDI connector stress tests 
for quite a while that is caused by an non-thread safe HashMap in the 
connector class. I've created a standalone testcase that reproduces it 
reliably.
    http://cr.openjdk.java.net/~aleonard/8225474/webrev.00

Thanks
Andrew

Andrew Leonard
Java Runtimes Development
IBM Hursley
IBM United Kingdom Ltd
internet email: andrew_m_leonard at uk.ibm.com 

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