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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 32611] New: - ClassCastException from Custom Task
Date Thu, 09 Dec 2004 17:55:21 GMT
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http://issues.apache.org/bugzilla/show_bug.cgi?id=32611

           Summary: ClassCastException from Custom Task
           Product: Ant
           Version: 1.6.2
          Platform: PC
        OS/Version: Windows 2000
            Status: NEW
          Keywords: ErrorMessage
          Severity: normal
          Priority: P2
         Component: Other
        AssignedTo: dev@ant.apache.org
        ReportedBy: shawn.price@ngc.com
                CC: shawn.price@ngc.com


We are in the process of testing upgrade from Ant 1.4 to 1.6.2.  We had 
previously developed a custom copy task that overrides Copy.doFileOperation().  
After updating the proper libraries, I attempted to run our applications 
build.  What resulted was a ClassCastException (with no message) when 
attempting to get the name of the next destination file name from fileCopyMap 
(from org.apache.tools.ant.taskdefs.Copy) using the source file name.  Due to 
restrictions on corporate proprietary info, I cannot provide all the source 
code, but the offending line is:

String destinationFile = (String)fileCopyMap.get(sourceFile);

, which generates the following lines in stack trace (reprinted):

[copy] com.ourapp.tools.ant.build.CustomCopyTask.doFileOperations
(CustomCopyTask.java.88)
[copy] org.apache.tools.ant.taskdefs.Copy.execute(Copy.java:421)
[copy] org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
...

Incidentally, I've done some troubleshooting, and found through fileCopyMap.get
(sourceFile).getClass().getName() that the type (at least as far was the 
serialization mechanism is concerned) is still java.lang.String.  Can anyone 
help me on this

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