Esquinas redondeadas de un jTextField en netbeans

private void jTextField1FocusGained(java.awt.event.FocusEvent evt) {                                       
        jTextField1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(142, 230, 218)));
    }                                      

private void jTextField1FocusLost(java.awt.event.FocusEvent evt) {                                     
        jTextField1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(255, 255, 255)));
    }

Java

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