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From "Fabricio M. Sanchez" <>
Subject ZipException on javac task moving from jdk1.4 to jdk1.5
Date Tue, 07 Jun 2005 13:42:54 GMT
Hi there,

I've searched google, ant-faq and ant-manual and found nothing conclusive...

I have recently moved from java (jdk) 1.4.2 to 1.5.0_03.
I'm using ant 1.6.1 (I've tried ant 1.6.5 also, but the problem still

After deleting all classes and compiling using the javac task (target name
is compile, see code below), I then compile the source again. 
The first time I compile (using 'ant compile')it builds successfully.
When I compile again (without modifying any files) and only on jdk1.5.0_03
(it works fine on jdk1.4.2) I get the

Has this happened to anyone? Any ideas on what to do to resolve it?

Thank you for your time,


Code below....

---- Start of build.xml compile target ----
<!-- Compiles Application -->
  <target name="compile">
    <javac srcdir="${home}/${src}" destdir="${home}/${classes}"
           debug="on" optimize="off" deprecation="on"/>          <-- line
105 on build.xml (see output, below)
---- End of build.xml compile target ----

---- Start of Ant Output ----
C:\current_with_version>ant compile
Buildfile: build.xml

    [javac] Compiling 13 source files to C:\current_with_version\classes
    [javac] error: error reading
C:\current_with_version\classes\com\esp\cost\CostElement.class; jav error in opening zip file
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 1 error

C:\current_with_version\build.xml:105: Compile failed; see the compiler
error output for details.

Total time: 48 seconds
---- End of Ant Output ----

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