Having a small problem compiling servlet.java (php servlet java file)
on Solaris 2.6 using java

home/dwight/php/php-4.0.4pl1/build/shtool mkdir -p net/php
javac net/php/reflect.java
javac -classpath 
.:.:/usr/java/lib/classes.zip:phpsrvlt.jar:/opt/netscapeSvr/ns-home/plugins
/java/classes/servlet3_5.zip net/php/servlet.java
net/php/servlet.java:116: Method getWriter() not found in interface 
javax.servlet.http.HttpServletResponse.
        response.getWriter().print(data);
                          ^
net/php/servlet.java:117: Exception java.io.IOException is never thrown in 
the body of the corresponding try statement.
      } catch (IOException e) {
        ^
2 errors

Addtional info:
HttpServletResponse response;
ServletResponse contains getWriter() module

Why isn't the getWriter() module contained in ServletResponse 
being inherited by HttpServletResponse?

Is the IOException error related to the error on line 116 or is this really 
a separate problem?  If so, any suggestions...
Thanx in advance...