Netscape: subprocess dialog box with following text "tempbuflen=5, utf-8" coming, when jaws application (hellowjaws.jnlp - for example) runnig on Linux7.1 in Netscape 4.76

Netscape 4.76
Linux Redhat7.1
Java Web Start Version1.2[EA] (build ea-b03)
J2re1.4.1

Steps:
- launch any jnlp file in Netscape 4.76, hellowjaws.jnlp for example
- small Netscape: subprocess dialog box with following text "tempbuflen=5, utf-8" coming