There is no available project classpath to apply a semantic analysis

[Alroy D'souza]

hi, 

I am trying to run the walkmod-dead-code-cleaner-plugin plugin from the commend line. it shows me the following error.

 INFO [main] - ** STARTING TRANSFORMATIONS CHAINS **

--------------------------------------------------------------------------------

 INFO [main] - TRANSFORMATION CHAIN FAILS

--------------------------------------------------------------------------------

 INFO [main] - Total time: 0.059 seconds

 INFO [main] - Finished at: Mon, 11 Apr 2016 15:56:10

 INFO [main] - Final memory: 114 M/ 123 M

--------------------------------------------------------------------------------

 INFO [main] - Please, see the walkmod log file for details

ERROR [main] - TRANSFORMATION CHAIN (default) FAILS

An exeception has been produced during the null transformation - org.walkmod.util.location.LocationImpl@25084a1e

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

        at org.walkmod.walkers.AbstractWalker.walk(AbstractWalker.java:261)

        at org.walkmod.walkers.AbstractWalker.execute(AbstractWalker.java:276)

        at org.walkmod.javalang.walkers.DefaultJavaWalker.execute(DefaultJavaWalker.java:160)

        at org.walkmod.impl.DefaultChainWalkerInvocation.invoke(DefaultChainWalkerInvocation.java:41)

        at org.walkmod.impl.DefaultChainInvocation.invoke(DefaultChainInvocation.java:38)

        at org.walkmod.impl.DefaultChainAdapter.execute(DefaultChainAdapter.java:165)

        at org.walkmod.WalkModFacade.executeAllChains(WalkModFacade.java:911)

        at org.walkmod.WalkModFacade.apply(WalkModFacade.java:376)

        at org.walkmod.commands.ApplyCommand.execute(ApplyCommand.java:40)

        at org.walkmod.WalkModDispatcher.execute(WalkModDispatcher.java:171)

        at org.walkmod.WalkModDispatcher.main(WalkModDispatcher.java:196)

Caused by: java.lang.reflect.InvocationTargetException

        ... 15 more

Caused by: There is no available project classpath to apply a semantic analysis - org.walkmod.util.location.LocationImpl@25084a1e

        at org.walkmod.javalang.walkers.DefaultJavaWalker.visit(DefaultJavaWalker.java:211)

        at org.walkmod.javalang.walkers.DefaultJavaWalker.accept(DefaultJavaWalker.java:86)

        ... 15 more

this is my walkmod.xml

<!DOCTYPE walkmod PUBLIC "-//WALKMOD//DTD" "http://www.walkmod.com/dtd/walkmod-1.1.dtd">

<walkmod> 

<plugins> 

<plugin artifactId = "walkmod-dead-code-cleaner-plugin" groupId = "org.walkmod" version = "1.0.0" /> 

</plugins> 

<chain name = "default"> 

<reader path="src/"></reader> 

<transformation type = "walkmod:commons:unused-declarations-cleaner" /> 

<writer path="output"></writer>

</chain> 

</walkmod>

Please let me know what am I doing wrong. 

Thanks

Regards,

Alroy

[walkmod]

How do you build your project? Using ant?

In such case, you need to add the rawclasspath plugin (https://github.com/walkmod/walkmod-rawclasspath-plugin) in order to make walkmod discover your project .class files and your dependencies (jar files).

I hope it helps.

[Alroy D'souza]

Okay I am trying to create my own plugin to delete unused variable. I came across the 2 plugins dead code cleaner and sonar:RemoverUselessVariables. I got those source files from git and tried to run it, but both gave me above mentioned error. upon deleting @RequiresSemanticAnalysis annotation it deletes all the variables even if its used in code. 

Can you please direct where am I doing wrong. Guide me.

Thanks

 

[walkmod]

Hi,

Yo don't need to create your own plugin since, this is a problem solved by dead code cleaner.

The problem is that walkmod needs your classpath and the way to configure it is using the plugin I mentioned, which is explained in the Github webpage: https://github.com/walkmod/walkmod-rawclasspath-plugin

Raquel

[Alroy D'souza]

I know I don't have to create my own but my project mentor is insisting me to do so. That's the reason for my this project. I specified the classpath but I have got one more error 

Caused by: org.walkmod.javalang.compiler.types.TypeNotFoundException: Error resolving the class for Sample

[walkmod]

Hi,

Great. 

Have you added the folder that contains the .class of your project (e.g bin, target..)? Because the problem is that walkmod is not finding the Sample.class file.

[Alroy D'souza]

hey,

I have added the .class path, but it showing me some NullPointer Exception.

If you don't mind can you just show me how to write this tags with my file Sample.java 

<!DOCTYPE walkmod PUBLIC "-//WALKMOD//DTD"  "http://www.walkmod.com/dtd/walkmod-1.1.dtd" >
<walkmod

>
  ...
  <conf-providers>
    <conf-provider type="rawclasspath">
       <param name="classpath">bin;lib/guava.jar;lib/log4j.jar</param>
    </conf-provider>
  </conf-providers>
  ...
</walkmod>

[walkmod]

Acording your walkmod.xml:

<!DOCTYPE walkmod PUBLIC "-//WALKMOD//DTD" "http://www.walkmod.com/dtd/walkmod-1.1.dtd">

<walkmod> 

<plugins> 

<plugin artifactId = "walkmod-dead-code-cleaner-plugin" groupId = "org.walkmod" version = "1.0.0" /> 

</plugins>

<conf-providers>
    <conf-provider type="rawclasspath">
       <param name="classpath"><!--here your classpath--></param>
    </conf-provider> 

  </conf-providers> 

<chain name = "default"> 

<reader path="src/"></reader> 

<transformation type = "walkmod:commons:unused-declarations-cleaner" /> 

<writer path="output"></writer>

</chain> 

</walkmod>

[Alroy D'souza]

Hi

That worked like a charm.

Thanks for your help and all the best for future work.

I will surly write you in future with more queries and information.

Thanks

Regards

Alroy D'souza