FULL PRODUCT VERSION :
java version "1.6.0_01"
Java(TM) SE Runtime Environment (build 1.6.0_01-b06)
Java HotSpot(TM) Server VM (build 1.6.0_01-b06, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
SunOS sys1.nyc.deshaw.com 5.10 Generic_118855-31 i86pc i386 i86pc Solaris

A DESCRIPTION OF THE PROBLEM :
Applications perform more slowly when run with the -splash option, even after the splash screen goes away, or even when run with -splash:/dev/null.

The problem is especially noticeable when using a non-local X display.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the attached code as TestTable.java. Run it with and without the -splash option:

java -splash:/dev/null TestTable Splash
java TestTable NoSplash

  To see the effect, these should be run on a different machine than the one the X server is running on, so the X protocol has to actually go over the network. Either setting DISPLAY directly or tunnelling with ssh -Y works.

Move the scroll bar on each window. The one run with -splash is much slower.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
I would expect both instances to run the same.
ACTUAL -
The one run with -splash runs much slower.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;

public class TestTable
{
    /**
     * @param args The number of rows to display in String form.
     */
    public static void main(String[] args)
    {
        if (args.length < 1) {
            System.err.println("args: <title>");
            System.exit(1);
        }

        JFrame frame = new JFrame(args[0]);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        TableModel tableModel = new TestTableModel(1000);
        JTable table = new JTable(tableModel);
        JScrollPane scrollPane = new JScrollPane(table);
        frame.getContentPane().add(scrollPane, BorderLayout.CENTER);
        frame.pack();
        frame.setVisible(true);
    }
}

/**
 * A simple TableModel which exists simply to generate rows for the test.
 */
class TestTableModel extends AbstractTableModel
{
    private int myRows;

    TestTableModel(int rows)
    {
        myRows = rows;
    }

    public int getRowCount()
    {
        return myRows;
    }

    public int getColumnCount()
    {
        return 10;
    }

    public Object getValueAt(int row, int column)
    {
        return new Integer(row * 10 + column);
    }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Don't use -splash.