RFR [14/java.xml] 8233548: Update CUP to v0.11b

[Lance Andersen]

Hi Joe,

Looks OK overall. 

Best
Lance
> On Nov 20, 2019, at 4:48 PM, Joe Wang <huizhe.wang at oracle.com> wrote:
> 
> Hi,
> 
> Please review an update to Java CUP. This is an effort to move to the latest version, v0.11b. JCUP is used by Xalan to generate XPathParser. Included in the JDK are runtime classes and XPathParser. In CUP 0.11b, the main additions to the runtime were SymbolFactory and ComplexSymbol that were used to report a bit more details (locations) about the parsing process. They were not used by Xalan nor the JDK since the benefit of these additions were in error reporting, but Xalan and JDK used their own reporting mechanism. I could have removed the JCUP error report process altogether, but decided to keep it in case it might be used for debugging.
> 
> The main change for this update therefore is to the XPathParser itself. Since JCUP has been stable, and no major Xalan update in sight, I took the liberty to re-format the whole class, plus some cleanup (mainly boxing/unboxing), that constitute the changes before the inner class parser_actions. Within parser_actions, the main change is that the 0.11b fixed the order of the switch block. Other than that, I removed many unused variables, and also formatted the long lines.
> 
> There were no other material changes. So there's no new test, all existing tests (including JCK) passed.
> 
> JBS: https://bugs.openjdk.java.net/browse/JDK-8233548
> webrevs: http://cr.openjdk.java.net/~joehw/jdk14/8233548/webrev/
> 
> Thanks,
> Joe
> 

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 <http://oracle.com/us/design/oracle-email-sig-198324.gif>Lance Andersen| Principal Member of Technical Staff | +1.781.442.2037
Oracle Java Engineering 
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