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Thanks alot man!!! You said about the non null value, so I re checked my codes trying to find such mistakes, and I found that the getConnection method didn't return an object, so the conn I'm using...

java.lang.NullPointerException
at Servlet.LoginServlet.service(LoginServlet.java:28)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at...

hi guys, I'm writing some servlets for a website, but I'm new to JSP, therefore I made alot mistakes when I was writing them, I've been fixing them for weeks, but this null pointer exception, I just...