[10] RFR 8179389: X509Certificate generateCRLs is extremely slow using a PEM crl list

[Weijun Wang]

Please take a review at

    http://cr.openjdk.java.net/~weijun/8179389/webrev.00/

The bug report [1] is correct that the frequent reallocation of data is 
the problem. This fix above delegate this task to ByteArrayOutputStream. 
There is no significant performance difference between this fix and the 
suggested fix in the bug report.

The "if (next != 9 && next != 10 && next != 13 && next != 32)" filter is 
equivalent to replaceAll("\\s+", "") in Pem.decode().

noreg-perf.

Thanks
Max

[1] https://bugs.openjdk.java.net/browse/JDK-8179389
[2] 
http://web.localhost/%7Eww155710/cgi-bin/hgwebdir.cgi/jdk9/dev/jdk/file/d34833290472/src/java.base/share/classes/sun/security/util/Pem.java#l46