[9] RFR(S): 8141443: jdk/test/java/util/regex/RegExTest.java fails: No match found

[Tobias Hartmann]

Hi,

please review the following patch:

https://bugs.openjdk.java.net/browse/JDK-8141443
http://cr.openjdk.java.net/~thartmann/8141443/webrev.00/

C2's string concatenation optimization fails concatenating a constant Latin1 encoded string with a constant UTF16 encoded string because there is an implicit sign extension while converting from jbyte to jshort. I added the necessary "& 0xff".

Surprisingly, this somehow slipped through PIT testing.

Thanks,
Tobias