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POError using classloader to load groovy class
 

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  1. POError using classloader to load groovy class
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    <p>I am attempting to load a groovy class by name using a classloader, and the class fails to load in the case that the class has a reference to a static inner class in another class.</p> <p>Inside my groovy class I have the following:</p> <pre><code>def classLoader = getClass().classLoader try { classLoader.loadClass( "com.test.TestClass" ) } catch(Throwable e) { Sigil.logger.error("Error loading class: $it &gt;&gt; ${e.message}", e) } </code></pre> <p>In the above, my groovy file TestClass has a static inner class inside it, that extends a static inner class of another file. When I try to run the above code I get the message:</p> <pre><code>ERROR [05 Aug 2013 06:53:28,851] (invoke0:?) - Error loading class: com.test.TestClass &gt;&gt; startup failed: unable to resolve class UserValidity.Validator @ line 85, column 5. public static class Validator extends UserValidity.Validator{ ^ 1 error </code></pre> <p>Has anyone come across any problems dealing with static inner classes and class loading in groovy before? The classes all compile correctly and unit tests run etc. I would have thought that when I try to load the class TestClass explicitly in my classloader, it would also load the other necessary classes from the source tree as needed?</p> <hr> <p><strong>UPDATE:</strong></p> <p>Here is a snippet of the class that is failing to load:</p> <pre><code>class TestClass{ //... Other normal class stuff here public static class Validator extends UserValidity.Validator @Override def validate(u) { def result = super.validate(u) if(!u.valid ){ result += [isValid:false] } result } } } </code></pre> <p>And this fails as it says it cannot resolve the reference to the UserValidity.Validator, which is also pretty simple:</p> <pre><code>class UserValidity { //normal class stuff here public static class Validator { def validate(u){ //do validation stuff result } } } </code></pre> <p>Both are just regular groovy classes.</p> <hr> <p><strong>UPDATE 2:</strong></p> <p>If I extract the static inner class <code>UserValidity.Validator</code> out in to a standalone class, and just extend that with the static inner class in <code>TestClass</code> then it appears to work, so definitely seems to be some issue with the parent of the inner class being another inner class</p>
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    1. COIs it a Java class you're loading? Can you post an example of a class that fails to load?
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    2. CO@tim_yates have updated with extracts from the classes - all just regular groovy
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    3. COOdd... seems to work if I pre-compile the `UserValidity` and `TestClass` classes with `groovyc`
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