tomcat php problem

Question

i want to run php programs using tomcat servlet software, after installing when i tested the php test file i got this error

java.lang.UnsatisfiedLinkError: net.php.servlet.send(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ILjava/lang/String;Z)V
 net.php.servlet.send(Native Method)
 net.php.servlet.service(servlet.java:190)
 net.php.servlet.service(servlet.java:214)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

what should i do now, i have safely done all the configurations required for tomcat