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https://issues.apache.org/jira/browse/FELIX-1251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guido Spadotto updated FELIX-1251:
----------------------------------
Description:
If the directory being polled by File Install is removed while File Install is
running,
the method DirectoryWatcher.traverse will raise a NullPointerException
when evaluating the condition for its "for" loop (the "list" variable will be
null).
was:
If the directory being polled by File Install is removed while File Install is
running,
the method DirectoryWatcher.traverse will raise a NullPointerException
when evaluating the condition for its "for" loop (the "list" variable will be
null).
This is a possible workaround:
void traverse(Map/* <String, Jar> */ jars, Set configs, File jardir)
{
String list[] = jardir.list();
if (list==null){
ConcurrentModificationException cme = new
ConcurrentModificationException("Unable to list "
+this.watchedDirectory+ " contents. Has it been removed
after " +
"File Install started?");
throw cme;
}
for (int i = 0; (list!=null) && i < list.length; i++)
{
...
This will not stop the outer loop from logging the Exception though,
which might not be convenient for the end user.
> Looping NullPointerException if the polled directory is removed after File
> Install registration
> -----------------------------------------------------------------------------------------------
>
> Key: FELIX-1251
> URL: https://issues.apache.org/jira/browse/FELIX-1251
> Project: Felix
> Issue Type: Bug
> Components: File Install
> Affects Versions: fileinstall-1.0.0
> Environment: Windows Vista
> Reporter: Guido Spadotto
> Priority: Minor
>
> If the directory being polled by File Install is removed while File Install
> is running,
> the method DirectoryWatcher.traverse will raise a NullPointerException
> when evaluating the condition for its "for" loop (the "list" variable will
> be null).
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