Jaxp issue? Can't find org.apache.xerces.jaxp.DocumentBuilderFactoryImpl using gradle

Question

I am having trouble getting a class to load in a gradle script. When I run this code:

buildscript {
    repositories {
       mavenCentral()
    }
    dependencies {
        classpath( group:"xerces", name:'xercesImpl', version:'2.9.1')
    }
}

task hello {
    doLast {
        println 'Hello world!'
        Class testClass = Class.forName("org.apache.xerces.jaxp.DocumentBuilderFactoryImpl")
        assert testClass: "org.apache.xerces.jaxp.DocumentBuilderFactoryImpl not found"
        println "found"
    }
}

I get this when I run "gradle hello": java.lang.ClassNotFoundException: org.apache.xerces.jaxp.DocumentBuilderFactoryImpl"

I suspect Jaxp implemenation issues, but don't know much about how jaxp works.

Thanks for any help

score 0 · Answer 1 · answered May 16 '11 at 00:27

Would something like this suffice?

import org.apache.xerces.jaxp.DocumentBuilderFactoryImpl;

buildscript {
    repositories {
       mavenCentral()
    }

    dependencies {
        classpath group:"xerces", name:'xercesImpl', version:'2.9.1'
    }
}

task hello {
        println 'Hello world!'
        DocumentBuilderFactoryImpl obj = new DocumentBuilderFactoryImpl()
        // do something with obj
}

score 0 · Answer 2 · answered May 31 '11 at 06:39

Try getClass().getClassLoader() instead. Class.forName() shouldn't be used at all; it has known problems when called from Java, and is totally unreliable when called from Groovy (you'll typically get the Groovy library's class loader instead of the caller's class loader).

Jaxp issue? Can't find org.apache.xerces.jaxp.DocumentBuilderFactoryImpl using gradle

2 Answers2