Railo > Lucee Component error: [java.lang.NullPointerException]

[Ivan]

Hello,

I want migrate from Railo (4.2.2.004) to Lucee (4.5.3.001) but I encountered a problem that I do not know to solve:

https://hostr.co/file/ohp14qvaRBkC/error_lucee.png

Using the component cfmailgun by Dominic Watson

With Railo working properly.

(sorry for my English)

[Andrew Dixon]

Hi Ivan,

I assume you have try to restart Lucee since upgrading? Also, 4.5.3.001 is only a bleeding edge release, the current stable release is 4.5.2.018, so not sure if this is a problem with the bleeding edge release, I would try the stable release.

Kind regards,

Andrew

about.me - mso - Lucee Association Member

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[Ivan]

Hello Andrew,

I tried to remove the last patch and return to version 4.5.2.018. I also rebooted the server, but I have not solved.

In my opinion, I'm wrong. Not a problem of Lucee.

If you need any more information, I am here!

[Jeroen Knoef]

Hi Ivan,

Not sure if this might be the cause, but the first argument of init() (apiKey) is required. I've never seen this message before though, so it's probably not the issue but who knows.

Kind regards,

Jeroen

[Ivan]

Hi Jeroen,

apiKey is defined in the file MailGunClient.cfc (for my convenience). 

Here you will find exactly the component as well as works on Railo: https://gist.github.com/ivanionut/71590e442114af05be8e

[Jeroen Knoef]

Ah ok.

 

As a test, you could just comment everything out in MailGunClient.cfc so that you're left with an empty component. Does it still throw? If yes: does the error go away if you don't call init? Can you create a completely different component on this spot without error?

If the error is gone at some point, you know where to drill down further. Hope this helps!

[Ivan]

Hi,

I created the component MailGunClient.cfc:

<cfcomponent output="false">


<!--- CONSTRUCTOR --->
 <cffunction name="init" access="public" returntype="any" output="false">
 <cfscript>
 return this;
 </cfscript>
 </cffunction>


<!--- MESSAGES --->
 <cffunction name="sendMessage" access="public" returntype="string" output="false">
 <cfreturn true />
 </cffunction>


</cfcomponent>

and called with:

<cfset Nnews = CreateObject( "component", "componenti.newsletter.com.MailGunClient" ).init() />

<cfoutput>#Nnews.sendMessage()#</cfoutput>

It works well.

Other components (in the same directory) work properly!

[Ivan]

Hi,

I tried to create the component (MailGunClient.cfc) in another directory and the problem persists... It may be a bug or incompatibility of Lucee? Or is it a problem of the component?

How can I make a more thorough debugging?

Thank you all!

[Jeroen Knoef]

Since the empty component can be instantiated, you could remove functions one at a time and see when the error goes away. Then you know there’s something in that function that Lucee chokes on. If you’ve found that function, comment out lines inside that function until there’s no error. That should give you the line where things go wrong. Could you post that line back here if you find it?

[Ivan]

Hi,

I thought and thought… I think that the 99% that the problem lies in the following function:

<cffunction name="validate" access="public" returntype="boolean" output="false">

<cfargument name="address"     type="string" required="true" />

<cfscript>

_setApiKey( "pubkey-460ik78fbe8bu471dfsr9wtpf53gl4m6" );

var getVars = {};

if ( Len( Trim( arguments.address ) ) ) {

getVars.address = arguments.address;

};

var result = _restCall(

 httpMethod = "GET"

, uri        = "/address/validate"

, getVars    = getVars

);

if ( IsStruct( result ) and StructKeyExists( result, "is_valid" ) ) {

return structFind(result, "is_valid");

}

_throw(

 type      = "unexpected"

, message   = "Unexpected mailgun response. Expected a validate object (structure) but received  [#SerializeJson( result )#]"

, errorCode = 500

);

</cfscript>

</cffunction>

This function has been added by me to check if the email address is correct. But I repeat: on Railo worked...

Invoking the other functions, the component works.

What does not work in this function?

[Ivan]

I correct what I wrote earlier... The problem seems to be in the "sendMessage". If I delete this function, the other functions seem to work...

<cffunction name="sendMessage" access="public" returntype="string" output="false" hint="Attempts to send a message through the MailGun API - returns message if successul and throws an error otherwise">
 <cfargument name="from"              type="string"  required="true" />
 <cfargument name="to"                type="string"  required="true" />
 <cfargument name="subject"           type="string"  required="true" />
 <cfargument name="text"              type="string"  required="true" />
 <cfargument name="html"              type="string"  required="true" />
 <cfargument name="cc"                type="string"  required="false" default="" />
 <cfargument name="bcc"               type="string"  required="false" default="" />
 <cfargument name="attachments"       type="array"   required="false" default="#ArrayNew(1)#" />
 <cfargument name="inlineAttachments" type="array"   required="false" default="#ArrayNew(1)#" />
 <cfargument name="domain"            type="string"  required="false" default="#_getDefaultDomain()#" />
 <cfargument name="testMode"          type="boolean" required="false" default="false" />
 <cfargument name="tags"              type="array"   required="false" default="#ArrayNew(1)#" />
 <cfargument name="campaign"          type="string"  required="false" default="" />
 <cfargument name="dkim"              type="string"  required="false" default="" />
 <cfargument name="deliveryTime"      type="string"  required="false" default="" />
 <cfargument name="tracking"          type="string"  required="false" default="" />
 <cfargument name="clickTracking"     type="string"  required="false" default="" />
 <cfargument name="openTracking"      type="string"  required="false" default="" />
 <cfargument name="customHeaders"     type="struct"  required="false" default="#StructNew()#" />
 <cfargument name="customVariables"   type="struct"  required="false" default="#StructNew()#" />


 <cfscript>
 var result   = "";
 var files    = {};
 var postVars = {
  from    = arguments.from
 , to      = arguments.to
 , subject = arguments.subject
 , text    = arguments.text
 , html    = arguments.html
 };


 if ( Len( Trim( arguments.cc ) ) ) {
 postVars.cc = arguments.cc;
 }


 if ( Len( Trim( arguments.bcc ) ) ) {
 postVars.bcc = arguments.bcc;
 }


 if ( _getForceTestMode() or arguments.testMode ) {
 postVars[ "o:testmode" ] = "yes";
 }


 if ( ArrayLen( arguments.tags ) ) {
 postVars[ "o:tag" ] = arguments.tags;
 }


 if ( Len( Trim( arguments.campaign ) ) ) {
 postVars[ "o:campaign" ] = arguments.campaign;
 }


 if ( IsBoolean( arguments.dkim ) ) {
 postVars[ "o:dkim" ] = _boolFormat( arguments.dkim );
 }


 if ( IsDate( arguments.deliveryTime ) ) {
 postVars[ "o:deliverytime" ] = _dateFormat( arguments.deliveryTime );
 }


 if ( IsBoolean( arguments.tracking ) ) {
 postVars[ "o:tracking" ] = _boolFormat( arguments.tracking );
 }


 if ( IsBoolean( arguments.clickTracking ) ) {
 postVars[ "o:tracking-clicks" ] = _boolFormat( arguments.clickTracking );
 } elseif( arguments.clickTracking eq "htmlonly" ) {
 postVars[ "o:tracking-clicks" ] = "htmlonly";
 }


 if ( IsBoolean( arguments.openTracking ) ) {
 postVars[ "o:tracking-opens" ] = _boolFormat( arguments.openTracking );
 }


 for( var key in arguments.customHeaders ){
 postVars[ "h:X-#key#" ] = arguments.customHeaders[ key ];
 }


 for( var key in arguments.customVariables ){
 postVars[ "v:#key#" ] = arguments.customVariables[ key ];
 }


 if ( ArrayLen( arguments.attachments ) ) {
 files.attachment = arguments.attachments;
 }


 if ( ArrayLen( arguments.inlineAttachments ) ) {
 files.inline = arguments.inlineAttachments;
 }


 result = _restCall(
  httpMethod = "POST"
 , uri        = "/messages"
 , domain     = arguments.domain
 , postVars   = postVars
 , files      = files
 );


 if ( StructKeyExists( result, "id" ) ) {
 return result.id;
 }


 _throw(
  type    = "unexpected"
 , message = "Unexpected error processing mail send. Expected an ID of successfully sent mail but instead received [#SerializeJson( result )#]"
 );
 </cfscript>
 </cffunction>

Why do you think it does not work?

[Jeroen Knoef]

What happens if you remove all (most) arguments? This function has a lot of them, maybe lucee has some limit imposed on this? It's trial and error...

Other things you can try: rename the function, clear the function body. 

Verstuurd vanaf mijn iPhone

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[Jon Clausen]

I suspect it could be the "domain" argument.  Argument defaults need to be simple values or, if they call a function, that function needs to have a default static response, that doesn't depend on any variables set in the constructor.

[Note: Typo assistance courtesy of iPhone]

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[Ivan]

OMG ... thanks to all I found the problem!

it's here:

if ( IsDate( arguments.deliveryTime ) ) {
 postVars[ "o:deliverytime" ] = _dateFormat( arguments.deliveryTime );
}

Lucee not like the word "_dateFormat", so I changed and now it works! I will do more tests, but for now I can say I solved!

P.S. ye are a great community, ready to give advice to try to solve issues. Thank you!

[Dominic Watson]

Sorry for the late reply, have just seen this. Nice find! Would you mind making a pull request with your fix?

Dominic :)