As per our 1.4.2 Java for business release notes at http://java.sun.com/javase/javaseforbusiness/docs/1.4.2/overview.html, it has mentioned

-XX:-UseInterruptableIO JVM Option Switch

Solaris users can use the -XX:-UseInterruptableIO JVM Option Switch in order to have applications on Solaris behave similarly under interrupt conditions to applications on Linux or Windows. Refer to 6382902.

The flag is incorrect.

The correct flag should be UseVMInterruptibleIO

Thanks

Herrick