Null pointer exception on <cfthread>

Question

The following code works on Adobe ColdFusion 9.01+ but not Railo 4.1

Furthermore, this only fails on Post

This code is called inside of FW/1 setupRequest() in application.cfc

<cfthread name="threadA" action="run"> 

<cftry>

<cfquery>
    INSERT
    INTO    dbo.Traffic (Circuit, Fuseaction, IP_hash)
    VALUES  (<cfqueryparam cfsqltype="CF_SQL_VARCHAR" value="#listfirst(variables.rc.fuseaction, '.')#">,
        <cfqueryparam cfsqltype="CF_SQL_VARCHAR" value="#listlast(variables.rc.fuseaction, '.')#">,
        <cfqueryparam cfsqltype="CF_SQL_VARCHAR" value="#cgi.remote_addr#">
        )
</cfquery>


<cfcatch />
</cftry>

</cfthread>

Error

java.lang.NullPointerException at railo.runtime.net.http.HttpUtil.cloneParameters(HttpUtil.java:66):66 at railo.runtime.net.http.HttpServletRequestDummy.clone(HttpServletRequestDummy.java:677):677 at railo.runtime.thread.ThreadUtil.cloneHttpServletRequest(ThreadUtil.java:67):67 at railo.runtime.thread.ThreadUtil.clonePageContext(ThreadUtil.java:29):29 at railo.runtime.thread.ChildThreadImpl.(ChildThreadImpl.java:101):101 at railo.runtime.tag.ThreadTag.register(ThreadTag.java:269):269 at scorecard38.application_cfc$cf.udfCall(D:\railo\webapps\www\Scorecard38\Application.cfc:162):162 at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:94):94

Wild Guess

variables.rc is not getting copied into the thread

Answer 1

variables.rc will not be copied into the thread unless you add it as an argument. Add rc as an argument and then instead of variables.rc you'll access it via arguments.rc

<cfthread name="threadA" action="run" rc="#variables.rc#">
  <cftry>

    <cfquery>
    INSERT INTO dbo.Traffic (Circuit, Fuseaction, IP_hash)
    VALUES  (<cfqueryparam cfsqltype="CF_SQL_VARCHAR" value="#listfirst(arguments.rc.fuseaction, '.')#">,
    <cfqueryparam cfsqltype="CF_SQL_VARCHAR" value="#listlast(arguments.rc.fuseaction, '.')#">,
    <cfqueryparam cfsqltype="CF_SQL_VARCHAR" value="#cgi.remote_addr#">
    )
    </cfquery>

    <cfcatch />
  </cftry>

</cfthread>

If that doesn't work you'll have to remove the try/catch and dump out your cfthread to see the error. The code below will output 'Variable C is undefined'

<cfthread name="threadA" action="run">
  <cfset b = c>
</cfthread>
<cfdump var="#cfthread#"><cfabort>

Answer 2

I had the same problem s you. You are using CGI varaible and that's what is causing the problem