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VelocityViewServlet : Error processing the template
Invocation of method 'isOpIsInList' in class com.mumsnet.talk.helpers.BookStylePageOfMessages threw exception class java.lang.NullPointerException : null
java.lang.NullPointerException
at com.mumsnet.talk.helpers.BasePageOfMessages.isOpIsInList(BasePageOfMessages.java:95)
at sun.reflect.GeneratedMethodAccessor3284.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.velocity.runtime.parser.node.PropertyExecutor.execute(PropertyExecutor.java:111)
at org.apache.velocity.util.introspection.UberspectImpl$VelGetterImpl.invoke(UberspectImpl.java:302)
at org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.java:157)
at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:175)
at org.apache.velocity.runtime.parser.node.ASTReference.evaluate(ASTReference.java:307)
at org.apache.velocity.runtime.parser.node.ASTNotNode.evaluate(ASTNotNode.java:45)
at org.apache.velocity.runtime.parser.node.ASTExpression.evaluate(ASTExpression.java:45)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:68)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:89)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:55)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:89)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:181)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:114)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:230)
at org.apache.velocity.Template.merge(Template.java:256)
at org.apache.velocity.tools.view.servlet.VelocityViewServlet.performMerge(Unknown Source)
at org.apache.velocity.tools.view.servlet.VelocityViewServlet.mergeTemplate(Unknown Source)
at org.apache.velocity.tools.view.servlet.VelocityViewServlet.doRequest(Unknown Source)
at org.apache.velocity.tools.view.servlet.VelocityViewServlet.doGet(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:115)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:92)
at com.caucho.server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java:103)
at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:167)
at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:226)
at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:424)
at com.caucho.server.port.TcpConnection.run(TcpConnection.java:477)
at com.caucho.util.ThreadPool$Item.runTasks(ThreadPool.java:591)
at com.caucho.util.ThreadPool$Item.run(ThreadPool.java:513)
at java.lang.Thread.run(Thread.java:619)