Optimising XMLDocument for Better Performance

[volodya-lombrozo]

"I was working on optimizing the jeo-maven-plugin, which extensively uses XMLDocument to work with XML documents because it provides many useful methods. However, I noticed that using XMLDocument makes the plugin 10 times slower than using pure javax.xml. Here, you can find evidence. Replacing XMLDocument with plain javax.xml improves the plugin's performance by approximately 5-10 times.

I have profiling results that also show that most of the time the plugin spend on work with XMLDocument.
flamegraph-assemble.html.txt

Particularly:

1. XMLDocument.<init> (constructor) ~ 48.95 %
2. XMLDocument.xpath ~ 9.25 %
3. XMLDocument.node ~ 7.99 %

Could you optimise XMLDocument, please?

[volodya-lombrozo]

@yegor256 Could you take a look please?

[yegor256]

@volodya-lombrozo please, help here

[yegor256]

@rultor release, tag is 0.32.0

[rultor]

@rultor release, tag is 0.32.0

@yegor256 OK, I will release it now. Please check the progress here.

[rultor]

@rultor release, tag is 0.32.0

@yegor256 Done! FYI, the full log is here (took me 22min).

[yegor256]

@volodya-lombrozo this one may be closed?

[volodya-lombrozo]

@yegor256 Yes, thank you!