Getting Session Information & User credentials using FlexContext

[Former Community Member]

Hi,

I am working with sessions and authentication for the first time.
I need assistance with using FlexContext to read the session attributes and user
Information. I want to know, how and from where FlexContext gets the session
information from? I have a flex login page, the user id and password are
submitted via URLVariables - j_username and j_password. The Tomcat validates it,
using custom JDBCRealm. I now want to capture this user information as well as
the session details, such that it is accessible at both the Flex as well as the
Java side. I have a java class, in which I am trying to access the
HttpServletRequest object and FlexSession object, by doing something like this -

HttpServletRequest req = FlexContext.getHttpRequest();
FlexSession session = FlexContext.getFlexSession();

But both of these throw NullPointerException.

Any pointers on how to resolve this issue, would be highly appreciated.

Thanks & Regards,
Deepa

[fegolder]

I am also experiencing this same thing.  It happens using both the 3.2.0.3978 turnkey and 3.3.0.8456 turnkey.  further FlexContext.getUserPrinical() also throws a null pointer exeception

SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
        at flex.messaging.FlexContext.isPerClientAuthentication(FlexContext.java:319)
        at flex.samples.product.ProductService.getProducts(ProductService.java:35)
        at org.apache.jsp.testdrive_002dhttpservice.catalog_jsp._jspService(catalog_jsp.java:62)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
        at java.lang.Thread.run(Thread.java:595)

Opening the source line 319 the only place I see where a null pointer can get thrown would be getting the message broker.  Any assistance would be great.

[Former Community Member]

Did you get this issues solved? I am having the same issue.

[tomj]

Yes, they were resolved. Protective code was added to these methods in 2009 to handle the case where no MessageBroker is available.

You are using an old version of LCDS.

Tom