The command line is too long Standard error from the DataNucleus tool

Question

I am getting this error

The command line is too long.

mvn install

Standard error from the DataNucleus tool  org.datanucleus.enhancer.DataNucleusEnhancer 
         


        

Answer 1

You may look at http://www.datanucleus.org/products/accessplatform/troubleshooting.html. and here: http://code.google.com/p/vosao/issues/detail?id=47.

==============QUOTE==============

Problem

CreateProcess error=87 when running DataNucleus tools under Microsoft Windows OS.

Windows has a command line length limitation, between 8K and 64K characters depending on the Windows version, that may be triggered when running tools such as the Enhancer or the SchemaTool with too many arguments.

Solution

When running such tools from Maven or Ant, disable the fork mechanism by setting the option fork="false". ==============END==============

pom.xml file needs to be adjusted as follows:

==============WAS==============

    org.datanucleus
    ....
    
        **/*.class
        true
        ASM
        JDO
    
    ...

==============END WAS==============

==============SHOULD BE==============

    org.datanucleus
    ....
    
        false
        org/vosao/entity/*.class
        true
        ASM
        JDO
    
    ...

==============SHOULD BE==============

My suggested change to pom.xml also specifies limiting scope of Enhancer work area.