[JENA-775] Jena TDB doesn't seem to release all file handles when dataset is closed

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: TDB 1.0.2
• Component/s: TDB

Environment

Windows

• Assignee: Andy Seaborne
• Reporter: Matthew Jarvis
• Created: 02/Sep/14 18:46
• Updated: 10/Mar/15 10:35
• Resolved: 04/Sep/14 11:08

Description

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:

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")));
}

Issue Links

• is related to: JENA-898 Building w/tests on Windows requires a lot of disk space