RFR(jdk10/jaxp) 8163121: BCEL: update to the latest 6.0 release

[Frank Yuan]

Hi Joe and Daniel

> > So far so good, most of them still seem to be present in
> > your changes, but I have a doubt about these two:
> >
> > https://bugs.openjdk.java.net/browse/JDK-8062608
> > https://bugs.openjdk.java.net/browse/JDK-8064516
> >
> > Has the issue been fixed upstream in a different way, or
> > is the issue no longer relevant, or is it going to appear
> > again with this patch?
> 
> Good catch!  The original patch came from BCEL, so I indeed assumed this
> update would get things the right way. As I double-checked, it turns out
> the additional patches as you listed above fixed issues that BCEL 6.0
> hasn't. These issues were revealed by JRocket, did not affect JAXP,
> however, they are still good changes that we shall keep. I've gone
> through both of the above to put these changes back into the code.
> 

IIUC JDK-8062608 and JDK-8064516 are related to JDK-8003147 but for JRocket, the first webrev(http://cr.openjdk.java.net/~joehw/jdk10/8163121/webrev/) looks different with the fix of JDK-8003147, however we have the relevant test in the repo, i.e. http://hg.openjdk.java.net/jdk9/jdk9/jaxp/file/tip/test/javax/xml/jaxp/unittest/parsers/Bug8003147Test.java, since all tests were passed, I assume the first webrev worked for JDK-8003147, certainly the second webrev looks good too :)

Thanks
Frank