On Sep 12, 2014, at 2:22 PM, Kevin Burton <bur...@spinn3r.com> wrote:
> Is it possible to fork plugin execution so that it executes in a separate > process? > No. Not unless the plugin supports forked execution. I'm not sure we'd ever want to support this anyway. Looks like it's loading two copies of the classes, or the thread context classloader is getting confused. If you can make a small self-contained project that reproduces the problem I can take a look. > I think doxia+markdown has a threading bug with peg down. > > I get the attached exception. > > Works fine with default options but -T 8 breaks it. > > I assume if I just have the site plugin in a separate proc that it will > probably work since I won’t have two site builds stepping on each other. > > > java.lang.ClassCastException: java.lang.Integer cannot be cast to > org.pegdown.ast.SuperNode > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:353) > > at org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.OneOrMoreMatcher.match(OneOrMoreMatcher.java:38) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.FirstOfMatcher.match(FirstOfMatcher.java:41) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.FirstOfMatcher.match(FirstOfMatcher.java:41) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.ZeroOrMoreMatcher.match(ZeroOrMoreMatcher.java:39) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > at org.parboiled.parserunners.BasicParseRunner.run(BasicParseRunner.java:72) > > at > org.parboiled.parserunners.ReportingParseRunner.runBasicMatch(ReportingParseRunner.java:86) > > at > org.parboiled.parserunners.ReportingParseRunner.run(ReportingParseRunner.java:66) > > at > org.parboiled.parserunners.AbstractParseRunner.run(AbstractParseRunner.java:81) > > at org.pegdown.Parser.parseToParsingResult(Parser.java:1329) > > at org.pegdown.Parser.parseInternal(Parser.java:1316) > > at org.pegdown.Parser.parse(Parser.java:78) > > at org.pegdown.PegDownProcessor.parseMarkdown(PegDownProcessor.java:137) > > at > org.apache.maven.doxia.module.markdown.MarkdownParser.parse(MarkdownParser.java:170) > > at org.apache.maven.doxia.DefaultDoxia.parse(DefaultDoxia.java:65) > > at > org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderDocument(DefaultSiteRenderer.java:398) > > at > org.apache.maven.doxia.siterenderer.DoxiaDocumentRenderer.renderDocument(DoxiaDocumentRenderer.java:51) > > at > org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:311) > > at > org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:129) > > at > org.apache.maven.plugins.site.render.SiteMojo.renderDoxiaDocuments(SiteMojo.java:261) > > at > org.apache.maven.plugins.site.render.SiteMojo.renderLocale(SiteMojo.java:172) > > at org.apache.maven.plugins.site.render.SiteMojo.execute(SiteMojo.java:141) > > at > org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132) > > ... 14 more > > Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast > to org.pegdown.ast.SuperNode > > at org.pegdown.Parser.addAsChild(Parser.java:1251) > > at org.pegdown.Action$mNyPdk1ujbVDZrIU.run(Unknown Source) > > at org.parboiled.matchers.ActionMatcher.match(ActionMatcher.java:96) > > at > org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77) > > at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:338) > > ... 65 more > > > -- > > Founder/CEO Spinn3r.com > Location: *San Francisco, CA* > blog: http://burtonator.wordpress.com > … or check out my Google+ profile > <https://plus.google.com/102718274791889610666/posts> > <http://spinn3r.com> Thanks, Jason ---------------------------------------------------------- Jason van Zyl Founder, Apache Maven http://twitter.com/jvanzyl http://twitter.com/takari_io --------------------------------------------------------- the course of true love never did run smooth ... -- Shakespeare
