Does anynore have any suggestions on the below classloader issue? Any suggestions are really appreciated
Thanks, Venkatesh On Thu, Oct 21, 2010 at 11:37 AM, Venkatesh Sangam <vsan...@gmail.com>wrote: > Hello, > > I have the following case that is resulting in classcastexception. Any > suggestion to fix this is really appreciated. > > 1. I have an ant build file parent.xml that has an antlib entry and also > has usage for the custom tasks defined in the antlib as follows: > > <taskdef resource="myco/anttasks/antlib.xml" > uri="antlib:myco.anttasks" loaderRef="myco.custom.tasks.loader"> > <classpath refid="custom.tasks.class.path"/> > </taskdef> > > <custom:myCustomTypeDef id="my.task" > xmlns:custom="antlib:myco.anttasks"> > </custom:myCustomTypeDef> > > The implementation details of myCustomTypeDef are > in myco/anttasks/antlib.xml > > 2. I have another ant build file child.xml that imports parent.xml and > defines its own custom tasks. These new custom tasks are an extension to the > tasks already defined in the parent.xml, which means that I need the class > path reference defined in "custom.tasks.class.path" > > 3. When I execute the new task in child.xml, I get a classcastexception > when referring to myCustomTypeDef. My code does not directly refer > to myCustomTypeDef, but the parent code that I am extending > references myCustomTypeDef. > > 4. The classes in the myco/anttasks/antlib.xml are loaded by a different > classloader than the taskdef in my child.xml and hence I cannot see that > class. > > How do I resolve this issue? I cannot directly modify parent.xml. Only > child.xml is in my control. How do I make sure that the taskdef in child.xml > are loaded by the same classloader loading the implementation defined in > parent antlib.xml > > > Thanks, > Venkatesh > >
