Martin Kouba commented on SUREFIRE-1222:

Hi Tibor,
Well, the tests do not call {{System.setOut()}} but the [Arquillian 
adapter|https://github.com/arquillian/arquillian-container-se] creates a new 
process and then redirects its output (i.e. calls 
{{java.lang.ProcessBuilder.redirectOutput(Redirect)}}) to the output of the JVM 
which runs the test. 

In any case, I think that 
 should expect similar lines (containing comma and code) and ignore them. E.g. 
the code/operationId could be prefixed with some uncommon prefix... e.g. 
{{:::I}} instead of {{I}} for BOOTERCODE_SYSPROPS.

> ForkClient attempts to consume unrelated lines
> ----------------------------------------------
>                 Key: SUREFIRE-1222
>                 URL: https://issues.apache.org/jira/browse/SUREFIRE-1222
>             Project: Maven Surefire
>          Issue Type: Bug
>          Components: Maven Surefire Plugin, process forking
>    Affects Versions: 2.17
>         Environment: Oracle JDK7 (build 1.7.0_79-b15)
> Linux 3.13 x86_64 with default locale cs_CZ
>            Reporter: Martin Kouba
> This month the [Weld 
> SE|https://github.com/weld/core/tree/2.3/environments/se/tests] test suite 
> suddenly started to fail on a Linux machine with Oracle JDK7 and the default 
> locale {{cs_CZ}}:
> {code}
> Caused by: java.lang.StringIndexOutOfBoundsException: String index out of 
> range: -1
>       at java.lang.String.substring(String.java:1911)
>       at 
> org.apache.maven.plugin.surefire.booterclient.output.ForkClient.consumeLine(ForkClient.java:128)
>       at 
> org.apache.maven.plugin.surefire.booterclient.output.ThreadedStreamConsumer$Pumper.run(ThreadedStreamConsumer.java:67)
>       at java.lang.Thread.run(Thread.java:745)
> {code}
> A {{java.util.logging.Logger}} is used in the forked process. The exception 
> occurs when the following log message is written to the standard output:
> {code}
> I 29, 2016 2:01:43 ODP. org.jboss.arquillian.container.se.server.Main main
> {code}
> We have found out that the timestamp *I 29, 2016 2:01:43* (i.e. 2016-01-29 
> 14:01:43) is incorrectly parsed as {{ForkingRunListener.BOOTERCODE_SYSPROPS}} 
> operation.
> I think the protocol should be robust enough to avoid similar collisions.

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