RFR JDK-8195703: BasicJDWPConnectionTest.java: 'App exited unexpectedly with 2'

serguei.spitsyn at oracle.com serguei.spitsyn at oracle.com
Thu Oct 11 00:17:56 UTC 2018

Hi Alex,

It looks good to me.
How did you test it?


On 10/10/18 16:25, Alex Menkov wrote:
> Hi all,
> please review a fix for
> https://bugs.openjdk.java.net/browse/JDK-8195703
> webrev:
> http://cr.openjdk.java.net/~amenkov/BasicJDWPConn/webrev.01/
> I was not able to reproduce the issue, but accordingly the logs in 
> jira root cause is a transport initialization error "Address already 
> in use".
> The test uses Utils.getFreePort() to select some free port, but it can 
> be race condition when some other app (or other test) uses the port 
> selected before debuggee application starts to listen on it.
> The fix uses dynamic port allocation and then parses it from the 
> debuggee output.
> Other changes:
> - dropped catching exceptions and calling System.exit() - this causes 
> SecurityException in JTReg harness which makes error analysis much 
> harder;
> - dropped using of Utils.getFreePort() from jdi/DoubleAgentTest.java 
> test;
>   jdi/BadHandshakeTest.java also uses Utils.getFreePort(), but it 
> handles "Already in use" error re-peeking other free port and 
> restarting debuggee, so I keep it as is.
> --alex

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