nsk/regression/b4261880
nsk/regression/b4265661

fails with message:
Exception in thread "main" java.lang.NullPointerException
        at sun.awt.X11.XToolkit.getScreenInsets(XToolkit.java:712)
        at java.awt.Window.init(Window.java:369)
        at java.awt.Window.<init>(Window.java:407)
        at java.awt.Frame.<init>(Frame.java:402)
        at java.awt.Frame.<init>(Frame.java:367)
        at javax.swing.SwingUtilities$SharedOwnerFrame.<init>(SwingUtilities.java:1731)
        at javax.swing.SwingUtilities.getSharedOwnerFrame(SwingUtilities.java:1808)
        at javax.swing.JDialog.<init>(JDialog.java:259)
        at javax.swing.JDialog.<init>(JDialog.java:193)
        at nsk.regression.b4261880.b4261880_base.<init>(b4261880_base.java:31)
        at nsk.regression.b4261880.b4261880_filt.<init>(b4261880_filt.java:32)
        at nsk.regression.b4261880.b4261880.<init>(b4261880.java:63)
        at nsk.regression.b4261880.b4261880.run(b4261880.java:71)
        at nsk.regression.b4261880.b4261880.main(b4261880.java:67)