John Pote wrote:
> I've seen this problem before with other apps (can't remember which). An
> open file is only released for overwriting when the whole app is
> terminated. When you click the close button on a tab window showing,
> say, a text file the tab closes but the app seems to hold it open,
> effectively locking the file against rewriting.
>
> Is it as simple as just needing to call the 'close' method once the file
> is read? But there's the rub, this has to happen in the emulator rather
> than eclipseme. If copies of the deployed files are passed to the
> emulator they won't be overwritable either as noted in an earlier email.
>
Note the trap that on Windows a file is sometimes not deleted:
http://forum.java.sun.com/thread.jspa?forumID=4&threadID=158689
I once ended up with such a delete method which, in may case,
never failed to delete:
private boolean deleteFile(File tempFile) {
if (!tempFile.exists())
return true;
final int MAX = 100;
boolean warn = false;
int i=0;
for (i=0; i<MAX; i++) {
if (!tempFile.delete()) {
warn = true;
if (!tempFile.exists()) // calling double delete fails, so
check here
break;
if (i == 0)
log.fine(ME+": Deleting file " +
tempFile.getAbsolutePath() + " failed");
System.gc();
if (!tempFile.delete()) {
if (i == 0)
log.warning(ME+": Deleting file " +
tempFile.getAbsolutePath() + " failed even after GC");
try {
Thread.sleep(100);
} catch (InterruptedException e) {
}
}
else
break;
}
else
break;
}
if (i >= MAX) {
log.severe(ME+": Deleting file " + tempFile.getAbsolutePath() +
" failed, giving up");
return false;
}
else {
if (warn)
log.info(ME+": Deleting file " + tempFile.getAbsolutePath()
+ " finally succeeded after " + (i+1) + " tries");
return true;
}
}
regards
Marcel
--
Marcel Ruff
http://www.xmlBlaster.org
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