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Posted to users@maven.apache.org by Vasiliy Baranov <Va...@Sun.COM> on 2009/03/18 15:31:41 UTC
how to EMMA-instrument dependencies
Hi,
I have a Maven 2 project that depends on a number of other Maven 2
projects that are built locally and installed into the local repository.
I need to instrument some of the dependency JARs with the EMMA coverage
tool and have Maven run unit tests against instrumented JARs rather than
the original dependencies. The emma-maven-plugin
(http://mojo.codehaus.org/emma-maven-plugin) does not seem to be of much
help as it does not seem to support this scenario.
Of course, it would be ideal if the emma-maven-plugin had support for
this. In fact, the plugin has an 'instrumentationPaths' parameter which
can be used to instrument classes from arbitrary directories; so I think
dependencies can be copied, unpacked, instrumented this way and passed
to maven-surefire-plugin via the 'classesDirectory' parameter; but in
this case both the instrumented classes and original dependencies both
appear on the test classpath, which sounds wrong.
Actually, I can bypass emma-maven-plugin and run EMMA instrumentor via
exec-maven-plugin, but again, it looks like the only way to pass the
instrumented classes to surefire is via the 'classesDirectory' or
'additionalClasspathElements' parameter, which is the same problem as
above, which makes me think this is not solely emma-maven-plugin's
problem (hence posting to this list).
What would be the right Maven way to achieve the goal? I am new to Maven
so I am sorry if I am missing something obvious. I spent several days
trying to find a solution, to no success.
In fact, I have some control over the dependency projects so I think I
can build them so that the resulting JARs will contain instrumented
classes (or I can instrument JARs separately and 'install:install-file'
them as separate components), but this is undesirable.
I hope I am making sense.
Thank you,
Vasiliy
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Re: how to EMMA-instrument dependencies
Posted by Stephen Connolly <st...@gmail.com>.
What you really want is to attach additional artifacts to your build with an
"emma-instrumented" classifier...
[Random but relevant]This will probably break the maven-ear-plugin on your
build... ;-) [/Random but relevant]
My understanding is that issues with instrumented jars using classifiers and
forked builds and fun like that is why clover-maven-plugin is less than
perfect...
I know that there are changes to maven which will make the coverage
situation nicer... I suspect people are holding off to see what they are
-Stephen
2009/3/18 COURCY Michael <mc...@sigma.fr>
> I see, well unless you instrument your local repository ... I don't really
> see a simple and *clean* solution.
>
> Emma offer an option to instrument code by providing its own classloader,
> but it means you have to inteact with classworld maven classloader and thus
> write a plugin for that :
>
> http://maven.apache.org/guides/mini/guide-maven-classloading.html
>
> Should be possible but there's a real work to do.
>
> -----Message d'origine-----
> De : Vasiliy.Baranov@Sun.COM [mailto:Vasiliy.Baranov@Sun.COM]
> Envoyé : mercredi 18 mars 2009 16:48
> À : Maven Users List
> Objet : Re: how to EMMA-instrument dependencies
>
> Thank you, but this does not really solve my problem. The problem is not
> that I cannot instrument dependency JARs. The problem is I cannot cleanly
> get instrumented JARs into the unit test classpath.
>
> Vasiliy
>
> COURCY Michael wrote:
> > Hi
> >
> > From my experience with emma I use a ant call after the compilation
> phase.
> >
> > Ant is going much more power than the emma plugin
> >
> > <!--
> > pour instrumenter l'appli web
> > mvn install -P instrument
> > -->
> > <profile>
> > <id>instrument</id>
> > <build>
> > <plugins>
> > <plugin>
> >
> <artifactId>maven-antrun-plugin</artifactId>
> > <executions>
> > <execution>
> > <phase>process-classes</phase>
> > <configuration>
> > <tasks>
> > <ant
> antfile="${basedir}/instrument_for_coverage.xml">
> >
> <target name="instrument"/>
> >
> </ant>
> > </tasks>
> > </configuration>
> > <goals>
> > <goal>run</goal>
> > </goals>
> > </execution>
> > </executions>
> > </plugin>
> > </plugins>
> > </build>
> > </profile>
> >
> > And use the overwrite mode in the ant, then only your class are going to
> be instrumended if you active this option :
> >
> > <target name="instrument" depends="init">
> >
> > <echo>Instrumenting the classes</echo>
> > <emma enabled="${emma.enabled}" >
> > <instr instrpathref="ServeurJava.classpath"
> > metadatafile="${metadatafile}"
> > merge="true"
> > mode="overwrite"
> > >
> > <filter value="${emma.filter}" />
> > </instr>
> > </emma>
> >
> > </target>
> >
> > Thus running
> >
> > Mvn package -P instrument
> >
> > produce an instrumented war
> >
> > And
> >
> > Mvn package
> >
> > Produce a regular one
> >
> > Good luck, emma rocks !!
> >
> >
> >
> >
> >
> > -----Message d'origine-----
> > De : Vasiliy.Baranov@Sun.COM [mailto:Vasiliy.Baranov@Sun.COM] Envoyé :
> > mercredi 18 mars 2009 15:32 À : users@maven.apache.org Objet : how to
> > EMMA-instrument dependencies
> >
> > Hi,
> >
> > I have a Maven 2 project that depends on a number of other Maven 2
> projects that are built locally and installed into the local repository.
> > I need to instrument some of the dependency JARs with the EMMA
> > coverage tool and have Maven run unit tests against instrumented JARs
> > rather than the original dependencies. The emma-maven-plugin
> > (http://mojo.codehaus.org/emma-maven-plugin) does not seem to be of much
> help as it does not seem to support this scenario.
> >
> > Of course, it would be ideal if the emma-maven-plugin had support for
> this. In fact, the plugin has an 'instrumentationPaths' parameter which can
> be used to instrument classes from arbitrary directories; so I think
> dependencies can be copied, unpacked, instrumented this way and passed to
> maven-surefire-plugin via the 'classesDirectory' parameter; but in this case
> both the instrumented classes and original dependencies both appear on the
> test classpath, which sounds wrong.
> >
> > Actually, I can bypass emma-maven-plugin and run EMMA instrumentor via
> exec-maven-plugin, but again, it looks like the only way to pass the
> instrumented classes to surefire is via the 'classesDirectory' or
> 'additionalClasspathElements' parameter, which is the same problem as above,
> which makes me think this is not solely emma-maven-plugin's problem (hence
> posting to this list).
> >
> > What would be the right Maven way to achieve the goal? I am new to Maven
> so I am sorry if I am missing something obvious. I spent several days trying
> to find a solution, to no success.
> >
> > In fact, I have some control over the dependency projects so I think I
> can build them so that the resulting JARs will contain instrumented classes
> (or I can instrument JARs separately and 'install:install-file'
> > them as separate components), but this is undesirable.
> >
> > I hope I am making sense.
> >
> > Thank you,
> > Vasiliy
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> > For additional commands, e-mail: users-help@maven.apache.org
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> > For additional commands, e-mail: users-help@maven.apache.org
> >
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org
>
>
RE: how to EMMA-instrument dependencies
Posted by COURCY Michael <mc...@sigma.fr>.
I see, well unless you instrument your local repository ... I don't really see a simple and *clean* solution.
Emma offer an option to instrument code by providing its own classloader, but it means you have to inteact with classworld maven classloader and thus write a plugin for that :
http://maven.apache.org/guides/mini/guide-maven-classloading.html
Should be possible but there's a real work to do.
-----Message d'origine-----
De : Vasiliy.Baranov@Sun.COM [mailto:Vasiliy.Baranov@Sun.COM]
Envoyé : mercredi 18 mars 2009 16:48
À : Maven Users List
Objet : Re: how to EMMA-instrument dependencies
Thank you, but this does not really solve my problem. The problem is not
that I cannot instrument dependency JARs. The problem is I cannot cleanly get instrumented JARs into the unit test classpath.
Vasiliy
COURCY Michael wrote:
> Hi
>
> From my experience with emma I use a ant call after the compilation phase.
>
> Ant is going much more power than the emma plugin
>
> <!--
> pour instrumenter l'appli web
> mvn install -P instrument
> -->
> <profile>
> <id>instrument</id>
> <build>
> <plugins>
> <plugin>
> <artifactId>maven-antrun-plugin</artifactId>
> <executions>
> <execution>
> <phase>process-classes</phase>
> <configuration>
> <tasks>
> <ant antfile="${basedir}/instrument_for_coverage.xml">
> <target name="instrument"/>
> </ant>
> </tasks>
> </configuration>
> <goals>
> <goal>run</goal>
> </goals>
> </execution>
> </executions>
> </plugin>
> </plugins>
> </build>
> </profile>
>
> And use the overwrite mode in the ant, then only your class are going to be instrumended if you active this option :
>
> <target name="instrument" depends="init">
>
> <echo>Instrumenting the classes</echo>
> <emma enabled="${emma.enabled}" >
> <instr instrpathref="ServeurJava.classpath"
> metadatafile="${metadatafile}"
> merge="true"
> mode="overwrite"
> >
> <filter value="${emma.filter}" />
> </instr>
> </emma>
>
> </target>
>
> Thus running
>
> Mvn package -P instrument
>
> produce an instrumented war
>
> And
>
> Mvn package
>
> Produce a regular one
>
> Good luck, emma rocks !!
>
>
>
>
>
> -----Message d'origine-----
> De : Vasiliy.Baranov@Sun.COM [mailto:Vasiliy.Baranov@Sun.COM] Envoyé :
> mercredi 18 mars 2009 15:32 À : users@maven.apache.org Objet : how to
> EMMA-instrument dependencies
>
> Hi,
>
> I have a Maven 2 project that depends on a number of other Maven 2 projects that are built locally and installed into the local repository.
> I need to instrument some of the dependency JARs with the EMMA
> coverage tool and have Maven run unit tests against instrumented JARs
> rather than the original dependencies. The emma-maven-plugin
> (http://mojo.codehaus.org/emma-maven-plugin) does not seem to be of much help as it does not seem to support this scenario.
>
> Of course, it would be ideal if the emma-maven-plugin had support for this. In fact, the plugin has an 'instrumentationPaths' parameter which can be used to instrument classes from arbitrary directories; so I think dependencies can be copied, unpacked, instrumented this way and passed to maven-surefire-plugin via the 'classesDirectory' parameter; but in this case both the instrumented classes and original dependencies both appear on the test classpath, which sounds wrong.
>
> Actually, I can bypass emma-maven-plugin and run EMMA instrumentor via exec-maven-plugin, but again, it looks like the only way to pass the instrumented classes to surefire is via the 'classesDirectory' or 'additionalClasspathElements' parameter, which is the same problem as above, which makes me think this is not solely emma-maven-plugin's problem (hence posting to this list).
>
> What would be the right Maven way to achieve the goal? I am new to Maven so I am sorry if I am missing something obvious. I spent several days trying to find a solution, to no success.
>
> In fact, I have some control over the dependency projects so I think I can build them so that the resulting JARs will contain instrumented classes (or I can instrument JARs separately and 'install:install-file'
> them as separate components), but this is undesirable.
>
> I hope I am making sense.
>
> Thank you,
> Vasiliy
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
For additional commands, e-mail: users-help@maven.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
For additional commands, e-mail: users-help@maven.apache.org
Re: how to EMMA-instrument dependencies
Posted by Vasiliy Baranov <Va...@Sun.COM>.
Thank you, but this does not really solve my problem. The problem is not
that I cannot instrument dependency JARs. The problem is I cannot
cleanly get instrumented JARs into the unit test classpath.
Vasiliy
COURCY Michael wrote:
> Hi
>
> From my experience with emma I use a ant call after the compilation phase.
>
> Ant is going much more power than the emma plugin
>
> <!--
> pour instrumenter l'appli web
> mvn install -P instrument
> -->
> <profile>
> <id>instrument</id>
> <build>
> <plugins>
> <plugin>
> <artifactId>maven-antrun-plugin</artifactId>
> <executions>
> <execution>
> <phase>process-classes</phase>
> <configuration>
> <tasks>
> <ant antfile="${basedir}/instrument_for_coverage.xml">
> <target name="instrument"/>
> </ant>
> </tasks>
> </configuration>
> <goals>
> <goal>run</goal>
> </goals>
> </execution>
> </executions>
> </plugin>
> </plugins>
> </build>
> </profile>
>
> And use the overwrite mode in the ant, then only your class are going to be instrumended if you active this option :
>
> <target name="instrument" depends="init">
>
> <echo>Instrumenting the classes</echo>
> <emma enabled="${emma.enabled}" >
> <instr instrpathref="ServeurJava.classpath"
> metadatafile="${metadatafile}"
> merge="true"
> mode="overwrite"
> >
> <filter value="${emma.filter}" />
> </instr>
> </emma>
>
> </target>
>
> Thus running
>
> Mvn package -P instrument
>
> produce an instrumented war
>
> And
>
> Mvn package
>
> Produce a regular one
>
> Good luck, emma rocks !!
>
>
>
>
>
> -----Message d'origine-----
> De : Vasiliy.Baranov@Sun.COM [mailto:Vasiliy.Baranov@Sun.COM]
> Envoyé : mercredi 18 mars 2009 15:32
> À : users@maven.apache.org
> Objet : how to EMMA-instrument dependencies
>
> Hi,
>
> I have a Maven 2 project that depends on a number of other Maven 2 projects that are built locally and installed into the local repository.
> I need to instrument some of the dependency JARs with the EMMA coverage tool and have Maven run unit tests against instrumented JARs rather than the original dependencies. The emma-maven-plugin
> (http://mojo.codehaus.org/emma-maven-plugin) does not seem to be of much help as it does not seem to support this scenario.
>
> Of course, it would be ideal if the emma-maven-plugin had support for this. In fact, the plugin has an 'instrumentationPaths' parameter which can be used to instrument classes from arbitrary directories; so I think dependencies can be copied, unpacked, instrumented this way and passed to maven-surefire-plugin via the 'classesDirectory' parameter; but in this case both the instrumented classes and original dependencies both appear on the test classpath, which sounds wrong.
>
> Actually, I can bypass emma-maven-plugin and run EMMA instrumentor via exec-maven-plugin, but again, it looks like the only way to pass the instrumented classes to surefire is via the 'classesDirectory' or 'additionalClasspathElements' parameter, which is the same problem as above, which makes me think this is not solely emma-maven-plugin's problem (hence posting to this list).
>
> What would be the right Maven way to achieve the goal? I am new to Maven so I am sorry if I am missing something obvious. I spent several days trying to find a solution, to no success.
>
> In fact, I have some control over the dependency projects so I think I can build them so that the resulting JARs will contain instrumented classes (or I can instrument JARs separately and 'install:install-file'
> them as separate components), but this is undesirable.
>
> I hope I am making sense.
>
> Thank you,
> Vasiliy
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
For additional commands, e-mail: users-help@maven.apache.org
RE: how to EMMA-instrument dependencies
Posted by COURCY Michael <mc...@sigma.fr>.
Hi
>From my experience with emma I use a ant call after the compilation phase.
Ant is going much more power than the emma plugin
<!--
pour instrumenter l'appli web
mvn install -P instrument
-->
<profile>
<id>instrument</id>
<build>
<plugins>
<plugin>
<artifactId>maven-antrun-plugin</artifactId>
<executions>
<execution>
<phase>process-classes</phase>
<configuration>
<tasks>
<ant antfile="${basedir}/instrument_for_coverage.xml">
<target name="instrument"/>
</ant>
</tasks>
</configuration>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
And use the overwrite mode in the ant, then only your class are going to be instrumended if you active this option :
<target name="instrument" depends="init">
<echo>Instrumenting the classes</echo>
<emma enabled="${emma.enabled}" >
<instr instrpathref="ServeurJava.classpath"
metadatafile="${metadatafile}"
merge="true"
mode="overwrite"
>
<filter value="${emma.filter}" />
</instr>
</emma>
</target>
Thus running
Mvn package -P instrument
produce an instrumented war
And
Mvn package
Produce a regular one
Good luck, emma rocks !!
-----Message d'origine-----
De : Vasiliy.Baranov@Sun.COM [mailto:Vasiliy.Baranov@Sun.COM]
Envoyé : mercredi 18 mars 2009 15:32
À : users@maven.apache.org
Objet : how to EMMA-instrument dependencies
Hi,
I have a Maven 2 project that depends on a number of other Maven 2 projects that are built locally and installed into the local repository.
I need to instrument some of the dependency JARs with the EMMA coverage tool and have Maven run unit tests against instrumented JARs rather than the original dependencies. The emma-maven-plugin
(http://mojo.codehaus.org/emma-maven-plugin) does not seem to be of much help as it does not seem to support this scenario.
Of course, it would be ideal if the emma-maven-plugin had support for this. In fact, the plugin has an 'instrumentationPaths' parameter which can be used to instrument classes from arbitrary directories; so I think dependencies can be copied, unpacked, instrumented this way and passed to maven-surefire-plugin via the 'classesDirectory' parameter; but in this case both the instrumented classes and original dependencies both appear on the test classpath, which sounds wrong.
Actually, I can bypass emma-maven-plugin and run EMMA instrumentor via exec-maven-plugin, but again, it looks like the only way to pass the instrumented classes to surefire is via the 'classesDirectory' or 'additionalClasspathElements' parameter, which is the same problem as above, which makes me think this is not solely emma-maven-plugin's problem (hence posting to this list).
What would be the right Maven way to achieve the goal? I am new to Maven so I am sorry if I am missing something obvious. I spent several days trying to find a solution, to no success.
In fact, I have some control over the dependency projects so I think I can build them so that the resulting JARs will contain instrumented classes (or I can instrument JARs separately and 'install:install-file'
them as separate components), but this is undesirable.
I hope I am making sense.
Thank you,
Vasiliy
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
For additional commands, e-mail: users-help@maven.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
For additional commands, e-mail: users-help@maven.apache.org