I have this issue when ever i tried to open my application

Error 500--Internal Server Error javax.servlet.ServletException: [HTTP:101249][ServletContext@423027198[app:CoalNetPRODHQ module:CoalNetPRODHQ path:/CoalNetPRODHQ spec-version:2.5]]: Servlet class jsp_servlet._common._jsp.__login for servlet /common/jsp/login.jsp could not be loaded because the requested class was not found in the classpath . java.lang.ClassNotFoundException: jsp_servlet._common._jsp.__login. at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:551) at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:281) at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:216) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:244) at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119) at java.security.AccessController.doPrivileged(Native Method) at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:324) at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460) at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103) at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171) at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:163) at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3730) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120) at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273) at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179) at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256) at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

Here is my web.xml file

<?xml version="1.0"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application      2.2//EN" "http://ift.tt/1kXu4dj">

<web-app>
<display-name>CoalNet Systems</display-name>
<description>A small demo web-app demonstrating
    interaction between JSP and EJB.</description>
<welcome-file-list>
    <welcome-file>coalnet.jsp</welcome-file>
    <!--<welcome-file>common/html/menu1.html</welcome-file>-->
</welcome-file-list>
<session-config>
<session-timeout>15</session-timeout>
  </session-config>
</web-app>