[WIP] Limit number of header lines

[OndraZizka]

Without any limit, JBake may encounter files that are very long, and try parsing them as text, looking for a header for the whole size of the file.

Looking for a header should be stopped after certain amount of lines and bytes.

[coveralls]

Coverage increased (+0.07%) to 80.149% when pulling 3dd2448 on OndraZizka:oz09-limitHeaderLines into a402b14 on jbake-org:master.

[coveralls]

Coverage decreased (-1.05%) to 79.73% when pulling 462023f on OndraZizka:oz09-limitHeaderLines into 058d403 on jbake-org:master.

[OndraZizka]

Rebased, not ready - need to compare with the current hasHeader().

[OndraZizka]

Getting this, does it ring a bell?

groovy.lang.MissingPropertyException: No such property: implicitThis for class: org.codehaus.groovy.ast.expr.StaticMethodCallExpression
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:67)
at org.codehaus.groovy.runtime.callsite.GetEffectivePojoPropertySite.getProperty(GetEffectivePojoPropertySite.java:65)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:298)

Looks like it runs with Groovy 2.4 for some reason.

[ancho]

Yes it does....https://issues.apache.org/jira/browse/GROOVY-8844

Are you really sure it uses groovy 2.4? How do you come to this conclusion?
You can check dependencies with ./gradlew :jbake-core:dependencies and ./gradlew :jbake-dist:dependencies

When does the error occur? While running test or smokeTest? I got that error in the smokeTests and fixed the template of the groovy-mte example project. Try ./gradlew clean and run again.

[OndraZizka]

No I'm not sure about Groovy 2.4, I deduced from the error which looks like there's a property missing that is new in 2.5. Occurs during a build. Graddle jar IIRC. Will try again later this week.

[OndraZizka]

Looks like it was resolve by the clean.
The issue remains with the PMD strictness...

[jonbullock]

@OndraZizka is this PR still WIP?