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https://issues.apache.org/jira/browse/VELOCITY-812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13112419#comment-13112419
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Konstantinos Kougios commented on VELOCITY-812:
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the error is weird as it can't find the JJTParserState within....
JJTParserState!
What I did is I removed all javacc generated files from
org.apache.velocity.runtime.parser . (I left Parser.jj and VelocityCharStream).
Then run
ant -Djavacc.home=..../javacc-5.0 parser
which recreated the javacc source files. Then I did
mvn clean package
and I am getting these errors
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile)
on project velocity: Compilation failure: Compilation failure:
[ERROR]
/home/ariskk/temp/t/1.7/src/java/org/apache/velocity/runtime/parser/JJTParserState.java:[5,25]
error: cannot find symbol
[ERROR] class JJTParserState
[ERROR]
/home/ariskk/temp/t/1.7/src/java/org/apache/velocity/runtime/parser/JJTParserState.java:[37,9]
error: cannot find symbol
[ERROR] class JJTParserState
....
> Parser.jj_scan_token very slow during debugging
> -----------------------------------------------
>
> Key: VELOCITY-812
> URL: https://issues.apache.org/jira/browse/VELOCITY-812
> Project: Velocity
> Issue Type: Bug
> Components: Engine
> Affects Versions: 1.7
> Environment: linux, windows, tomcat 6 running via maven, JDK7 (but
> had same issue with JDK6)
> Reporter: Konstantinos Kougios
> Attachments: profile.png
>
>
> Parser.jj_scan_token runs very slowly during java debugging mode. I've
> allocated more than enough memory for Java (Xmx , Xss, PermGen) and made sure
> it is enough by monitoring via visualvm.
> I am working on a springframework mvc project, with velocity as the template
> engine. Spring has a macro file that is loaded during startup : spring.vm
> (10kb). My box (6 core phenom processor) takes 10 seconds to parse that
> macro. After profiling with visualvm, I found out that 9 secs are spend on
> jj_scan_token method.
> When running the project without debugging enabled, the parsing is very fast.
> Please note that the issue occurs without any customization of velocity
> properties. Typically though the properties look like this:
> springMacro.resource.loader.cache=true,
> resource.loader=[springMacro],
> velocimacro.library=org/springframework/web/servlet/view/velocity/spring.vm,
> output.encoding=UTF-8,
> input.encoding=UTF-8,
> springMacro.resource.loader.class=org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader
> Please note that I've tried removing the encoding, but still the problem
> persists.
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