Issue #6233 has been updated by Daniel Crawl.
The NPE is gone, but an empty pattern should match everything instead of
generating an exception:
/** If non-empty, then only output file and directory names that
* match the specified (regular expression) pattern.
* The default value of this parameter is the empty String "",
* which indicates that everything matches.
*/
public StringParameter pattern;
----------------------------------------
Bug #6233: DirectoryListing NPE
https://projects.ecoinformatics.org/ecoinfo/issues/6233#change-21117
* Author: Daniel Crawl
* Status: New
* Priority: Normal
* Assignee: Daniel Crawl
* Category: actors
* Target version: 2.5.0
* Bugzilla-Id:
----------------------------------------
The DirectoryListing actor has an NPE:
java.lang.NullPointerException
at ptolemy.util.RecursiveFileFilter.accept(RecursiveFileFilter.java:141)
at java.io.File.list(File.java:1027)
at
ptolemy.util.RecursiveFileFilter.listFiles(RecursiveFileFilter.java:252)
at ptolemy.actor.lib.io.DirectoryListing.fire(DirectoryListing.java:270)
at ptolemy.actor.AtomicActor.iterate(AtomicActor.java:465)
I'm attaching an example model that demonstrates the problem in Vergil.
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