Copy issue ant 1.8.2 windows (Failed copy deletes targeted file even when copy is not attempted)

[Jason Weinstein]

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Copy issue ant 1.8.2 windows (Failed copy deletes targeted file even 
when copy is not attempted)


copy uses overwrite but not force.


Is this fixed perhaps in 1.8.3? Should a bug be created? Any workarounds?


What I assume is happening based on code is targeted file canWrite 
fails, read-only exception is thrown, and then targeted file is deleted, 
which succeeds.

The later part is what i observe, read-only exception followed by file 
deletion. This is not the behavior i would expect.


Copy.java

  protected void doResourceOperations(Map map)
  {
    if (map.size() > 0) {
      log("Copying " + map.size() + " resource" + (map.size() == 1 ? "" 
: "s") + " to " + this.destDir.getAbsolutePath());

      Iterator iter = map.keySet().iterator();
      while (iter.hasNext()) {
        Resource fromResource = (Resource)iter.next();
        String[] toFiles = (String[])map.get(fromResource);

        for (int i = 0; i < toFiles.length; i++) {
          String toFile = toFiles[i];
          try
          {
            log("Copying " + fromResource + " to " + toFile, 
this.verbosity);

            FilterSetCollection executionFilters = new 
FilterSetCollection();

            if (this.filtering) {
              
executionFilters.addFilterSet(getProject().getGlobalFilterSet());
            }

            Enumeration filterEnum = this.filterSets.elements();
            while (filterEnum.hasMoreElements()) {
              
executionFilters.addFilterSet((FilterSet)filterEnum.nextElement());
            }

            ResourceUtils.copyResource(fromResource, new 
FileResource(this.destDir, toFile), executionFilters, this.filterChains, 
this.forceOverwrite, this.preserveLastModified, false, 
this.inputEncoding, this.outputEncoding, getProject(), getForce());
          }
          catch (IOException ioe)
          {
            String msg = "Failed to copy " + fromResource + " to " + 
toFile + " due to " + getDueTo(ioe);

            File targetFile = new File(toFile);
            if ((targetFile.exists()) && (!targetFile.delete())) {
              msg = msg + " and I couldn't delete the corrupt " + toFile;
            }
            if (this.failonerror) {
              throw new BuildException(msg, ioe, getLocation());
            }
            log(msg, 0);
          }



ResourceUtils.java#copyResource



    File destFile = null;
    if (dest.as(FileProvider.class) != null) {
      destFile = ((FileProvider)dest.as(FileProvider.class)).getFile();
    }
    if ((destFile != null) && (destFile.isFile()) && 
(!destFile.canWrite())) {
      if (!force) {
        throw new IOException("can't write to read-only destination 
file " + destFile);
      }