If a class has an underscore in its name, javah adds a 0005h into the middle of the name after the underscore on Solaris.

% cat Foo_Bar.java
public class Foo_Bar {

}

% javac Foo_Bar.java
% javah Foo_Bar
% ls Foo*
Foo_0005fBar.h
Foo_Bar.class
Foo_Bar.java