RE: Java/RPG problem, I need help solving.

Thanks guys!!! Defining it as 'N' worked. That is really confusing.

Mike Wills
Lawson Programmer/Administrator
Taylor Corporation
Email: mnwills AT taylorcorpNOSPAM DOT com
AIM: iSeriesCodePoet


-----Original Message-----
From: Scott Klement [mailto:klemscot@xxxxxxxxxxxx] 
Sent: Friday, December 12, 2003 5:04 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: Java/RPG problem, I need help solving.


Remember a month or two ago when I was saying that overloading causes hard
to figure out errors?

The error that Java is sending you is "java.lang.NoSuchMethodError:
UploadFile"  but the actual problem isn't that it can't find the method, but
rather that your prototype doesn't match the Java method definition.

Since the return value of your UploadFile() routine is "boolean" (a java
primitive) and the RPG prototype references "java.lang.Boolean"
(an object) they are not the same type.   Because Java does overloading,
when the return types or parameters do not match, you get the error
"NoSuchMethod"

At any rate, the fix is to either change your Java method to return an
object of type java.lang.Boolean, or to change your RPG prototype to have a
return value of type "N" (indicator)

Hope that helps...

On Fri, 12 Dec 2003, Wills, Mike N. (TC) wrote:
[SNIP]
> Cause . . . . . :   RPG procedure DOCP_UPLOA in program
PDFPGMSNEW/F.DOCPROC
>   received Java exception "java.lang.NoSuchMethodError: UploadFile" when
>   calling method "UploadFile" with signature 
>
"(Lcom.taylor.docgate.Docfile;Ljava.lang.String;Ljava.lang.String;)Ljava.lan
>   g.Boolean;" in class "com.taylor.docgate.Docprocess".
[SNIP]
>      D uploadDoc       PR              O   ExtProc(*Java: DocP:
> 'UploadFile')
>      D                                     Class(*Java:
'java.lang.Boolean')
>      D  Doc                            O   Class(*Java: DocFile) Const
>      D  AuthToken                      O   Class(*Java: String) Const
>      D  URL                            O   Class(*Java: String) Const
[SNIP]
> Public boolean UploadFile(Docfile objDocFIle, String authToken, String 
> url) throws DocgateException{
>    return objDocgateDAO.UploadFile(objDocFIle,authToken,url);
> }
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