[Bug libgcj/21637] New: URL.openStream doesn't throw a FileNotFoundException with some urls

["bkonrath at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>]

Version:

gcc-java-4.0.0-5 from FC4 rawhide

Test Case:

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

public class URLTest {
	public static void main(String[] args) throws IOException {
		// replace this with any jar on your system 
                // that doesn't have /blah.txt in it.
		String jar = "/path/to/jar/bork.jar"; 

		URL url = new URL("jar:file:" + jar + "!/blah.txt");
		InputStream is = url.openStream();
		System.out.println("InputStream: " + is);
	}
}

Result of running with gij: 

InputStream: null

Result of running with Sun's VM:

Exception in thread "main" java.io.FileNotFoundException: JAR entry blah.txt not
found in /usr/share/eclipse/plugins/org.eclipse.osgi_3.1.0.jar
        at
sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:97)
        at
sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:107)
        at java.net.URL.openStream(URL.java:913)
        at URLTest.main(URLTest.java:12)

-- 
           Summary: URL.openStream doesn't throw a FileNotFoundException
                    with some urls
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libgcj
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bkonrath at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
                    dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21637