[GROOVY-255] Throwing Exceptions in Builders confuses groovy

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0-beta-10
• Assignee: Jochen Theodorou
• Reporter: Thomas Heller
• Created: 10/Mar/04 10:38
• Updated: 20/Feb/05 11:41
• Resolved: 20/Feb/05 11:41

Description

package groovy.util;

import java.util.Map;

/**

• @author Thomas Heller
  */
  public class BadBuilder extends BuilderSupport
  {
  protected void setParent(Object parent, Object child)
  {
  }

protected Object createNode(Object name)

{ if (name.equals("blowItUp")) throw new IllegalArgumentException("I didn't like that"); return name; }

protected Object createNode(Object name, Object value)

{ return name; }

protected Object createNode(Object name, Map attributes)

{ return name; }

}

package groovy.util

class BadBuilderTestCase extends GroovyTestCase {

void testBadBuilder() {
doc = new BadBuilder();
doc.html {
body

{ blowItUp(); }

}
}
}

result:

groovy.lang.MissingMethodException: No such method: body for class: groovy.util.BadBuilderTestCase$1 with arguments: [groovy.util.BadBuilderTestCase$1$3@472d48]
at groovy.lang.MetaClass.invokeMethod(MetaClass.java:271)
at groovy.lang.MetaClass.invokeMethod(MetaClass.java:245)
at groovy.lang.Closure.doInvokeMethod(Closure.java:89)
at groovy.lang.Closure.invokeMethod(Closure.java:74)
at org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:117)
...

On another builder I get this exception:

groovy.lang.IncorrectClosureArgumentsException: Incorrect arguments to closure: groovy.util.BadBuilderTestCase$2@3b8b49. Expected: [class java.lang.Object], actual: null
at groovy.lang.Closure.call(Closure.java:195)
at groovy.lang.Closure.call(Closure.java:177)
at groovy.util.BuilderSupport.doInvokeMethod(BuilderSupport.java:129)
at groovy.util.BuilderSupport.invokeMethod(BuilderSupport.java:85)

...