Tabbing from text field which has focus does not work in JDK 1.5

Using JDK 1.5 Dec 11 build. The testcase has an applet with some textfields and labels. There is a call to requestfocus() on one of the text fields.

When the applet is loaded with appletviewer, or from a browser (Mozilla 1.4 beta with JRE 1.5 plugin), user can type directly to the text field. However, tabbing to another component does not work.