NPE when generating benchmark code

[Mark Price]

Unfortunately, removing the ignore.symbol.file flag has no effect.

Running the original sample with jdk 1.7.0_51 is successful (though required 512m heap vs 256m).



Mark

----- Original Message -----
> Thanks.
> 
> So I put the same into jmh-ant-sample and added some @CompilerControl
> annotations. Works fine on JDK 6u38 and Ant 1.8.2.
> 
> Given the exception apparently NPEs on looking up the symbol within
> javac, maybe you need to drop <compilerarg value="-XDignore.symbol.file"/>?
> 
> -Aleksey.
> 
> On 05/21/2014 04:41 PM, Mark Price wrote:
> > Hi Aleksey,
> > thanks for the response.
> > 
> > ant version is 1.9.2
> > java version is 1.6.0_37
> > 
> > the ant file is embarrassingly tangled, but it boils down to:
> > 
> > <javac srcdir="src/test/java" destdir="build/test/classes" debug="on"
> > fork="yes" encoding="UTF-8" target="1.6"
> >                    source="1.6" debuglevel="lines,source,vars"
> >                    deprecation="on" includeantruntime="no"
> >                    memorymaximumsize="256m">
> >                 <compilerarg value="-Xlint:unchecked"/>
> >                 <compilerarg value="-XDignore.symbol.file"/>
> >                 <compilerarg value="-s"/>
> >                 <compilerarg value="build/test/classes"/>
> >                 <classpath>
> >                     <path
> >                     refid="${@{module}.@{artifact}.conf.compile}-path"/>
> >                     <extra-classpath/>
> >                 </classpath>
> >             </javac>
> > 
> > 
> > 
> > 
> > Mark
> > 
> > ----- Original Message -----
> >> Hi Mark,
> >>
> >> On 05/21/2014 03:51 PM, Mark Price wrote:
> >>> Hi, I'm using JMH in the non-recommended ant mode, and seeing an
> >>> exception while compiling my benchmark.
> >>
> >> Just checked our jmh-ant-sample and it works, which means the problem is
> >> specific to your scenario. The attachments were scrubbed, but I got them
> >> in the moderator note. Can you publish the Ant build file as well? "ant
> >> -v" and "java -version" would also be appreciated.
> >>
> >> These lines are important:
> >>
> >>> [javac] error: Compiler control generators had thrown the unexpected
> >>> exception java.lang.NullPointerException
> >> ...
> >>> [javac] 	at
> >>> org.openjdk.jmh.generators.core.CompilerControlPlugin.process(CompilerControlPlugin.java:67)
> >>
> >> That's a separate @CompilerControl processor, and this is why the
> >> benchmark is still generated.
> >>
> >>> though it seems to generate a file for the single benchmark that I
> >>> have included (attached, along with original benchmark source).
> >>
> >> No need to publish the generated source.
> >>
> >> Thanks,
> >> -Aleksey.
> >>
> 
>