Issue #2: JAR entry not found when JAR is updated inline and cached by

URLConnection

Author: michael-o

src/main/java/org/codehaus/plexus/components/io/resources/PlexusIoURLResource.java

@@ -20,6 +20,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
+import java.net.URLConnection;
 
 public abstract class PlexusIoURLResource
     extends AbstractPlexusIoResource
@@ -37,7 +38,9 @@ public InputStream getContents()
         final URL url = getURL();
         try
         {
-            return url.openStream();
+            URLConnection uc = url.openConnection();
+            uc.setUseCaches( false );
+            return uc.getInputStream();
         }
         catch ( IOException e )
         {
@@ -53,4 +56,4 @@ public String getDescriptionForError( URL url )
     }
 
     public abstract URL getURL() throws IOException;
-}
+}

src/test/java/org/codehaus/plexus/components/io/filemappers/ResourcesTest.java

@@ -22,6 +22,7 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.net.URLConnection;
 import java.util.Iterator;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
@@ -146,7 +147,9 @@ private void compare( PlexusIoResource res, File file )
         InputStream in = res.getContents();
         compare( in, file );
         in.close();
-        in = res.getURL().openStream();
+        URLConnection uc = res.getURL().openConnection();
+        uc.setUseCaches( false );
+        in = uc.getInputStream();
         compare( in, file );
         in.close();
     }