[
https://issues.apache.org/jira/browse/JENA-775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14120356#comment-14120356
]
Andy Seaborne commented on JENA-775:
------------------------------------
TDB (should) null out everything it can and the fact a GC works at all suggests
that is happening. Looking at the web-side discussions, as [~shelsen] says,
forcing a GC does not always work. As this is probably inside native code, I
don't have practical access as to why.
The later [6417205|http://bugs.java.com/view_bug.do?bug_id=6417205] is supposed
to help on a Sun/Oracle JVM.
I didn't know the IBM JVM was also affected by this as well.
> Jena TDB doesn't seem to release all file handles when dataset is closed
> ------------------------------------------------------------------------
>
> Key: JENA-775
> URL: https://issues.apache.org/jira/browse/JENA-775
> Project: Apache Jena
> Issue Type: Bug
> Components: TDB
> Affects Versions: TDB 1.0.2
> Environment: Windows
> Reporter: Matthew Jarvis
>
> Jena TDB doesn't allow renaming of a TDB directory after a dataset has been
> opened and a model has been added. It appears as though there is an open
> file handle that is preventing the rename from succeeding. The following
> JUnit test fails:
> {noformat}
> import java.io.File;
> import junit.framework.Assert;
> import org.junit.Test;
> import com.hp.hpl.jena.query.Dataset;
> import com.hp.hpl.jena.rdf.model.Model;
> import com.hp.hpl.jena.tdb.StoreConnection;
> import com.hp.hpl.jena.tdb.TDBFactory;
> import com.hp.hpl.jena.tdb.base.file.Location;
> import com.hp.hpl.jena.vocabulary.RDFS;
> @Test
> public void testRename() {
> String path = "C:\\tmp\\indexTdb";
> Dataset ds = TDBFactory.createDataset(path);
> StoreConnection.make(path);
> Model model = ds.getNamedModel(RDFS.Class.getURI());
> ds.addNamedModel(RDFS.Class.getURI(), model);
> ds.close();
> StoreConnection.release(new Location(path));
> File tdbRename = new File(path);
> Assert.assertTrue(tdbRename.renameTo(new
> File("C:\\tmp\indexTdbMoved")));
> }
> {noformat}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
