Revert "Remove the logic to check that settings a file filter worked in the file chooser."

This reverts commit 0bd1ac0.
Remove this logic now prevents the dialog from appearing on my mac...

Author: tinevez

src/main/java/fiji/plugin/trackmate/util/FileChooser.java

@@ -28,6 +28,7 @@
 import java.io.File;
 import java.io.FilenameFilter;
 import java.util.Locale;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import javax.swing.JFileChooser;
 import javax.swing.filechooser.FileFilter;
@@ -176,19 +177,33 @@ else if ( parent != null && parent instanceof Dialog )
 			/*
 			 * Try with a FilenameFilter (may silently fail).
 			 */
+			final AtomicBoolean workedWithFilenameFilter = new AtomicBoolean( false );
 			if ( fileFilter != null )
 			{
 				final FilenameFilter filenameFilter = new FilenameFilter()
 				{
+					private boolean firstTime = true;
+
 					@Override
 					public boolean accept( final File dir, final String name )
 					{
+						if ( firstTime )
+						{
+							workedWithFilenameFilter.set( true );
+							firstTime = false;
+						}
+
 						return fileFilter.accept( new File( dir, name ) );
 					}
 				};
 				fd.setFilenameFilter( filenameFilter );
 				fd.setVisible( true );
 			}
+			if ( fileFilter == null || ( isMac() && !workedWithFilenameFilter.get() ) )
+			{
+				fd.setFilenameFilter( null );
+				fd.setVisible( true );
+			}
 
 			final String filename = fd.getFile();
 			if ( filename != null )