Re: Problem in defining a Java method for RPG/ILE

Hi Marvin,

As Barbara pointed out, the "not enough parameters" message is because you have forgotten the 'static' keyword. Without 'static', it expects you to pass the object to operate on as the first parameter... but static methods operate at the class level, not the object level, so add the 'static' keyword.

Sorry, I missed that on the first attempt. This a problem with desk-checking... you don't necessarily catch every single bug with a glance.


On 10/27/2010 1:03 PM, Marvin Radding wrote:

Scott,

When I included the InputStream parameter in the definition, the
compiler tells me that there are fewer parameters than the definitions
calls for. What is the assumed parameter that I need to pass it?

My C specs are:

c eval logoimage = new_String('/mr0473/logo.jpg')

c eval InputStream =
new_FileInputStream(logoimage)
c eval picarray = toByteArray(InputStream)


Now I am getting more confused. If I define it without the InputStream,
I can call it as I have before. If I define the InputStream as part of
the definition, then I don't know what to use as the assumed parameter.
This is suppose to create an object. What parameter is there that I need
to pass it?

Thanks,

Marvin

------------------------------

message: 2
date: Tue, 26 Oct 2010 19:19:03 -0500
from: Scott Klement<rpg400-l@xxxxxxxxxxxxxxxx>
subject: Re: Problem in defining a Java method for RPG/ILE

You appear to have forgotten the InputStream parameter.


On 10/26/2010 6:12 PM, Marvin Radding wrote:

I am trying to put a picture into a Excel spreadsheet using the POI
classes.

The method I am having problems with is toByteArray. This method is
defined:

public static byte[] toByteArray(InputStream stream)

I have defined it in RPG/ILE as

D toByteArray...
D pr 4096a
D extproc(*java
D :'org.apache.poi.util.IOUtils'
D :'toByteArray')

When I execute the program, I get a

Java exception received when calling Java method.

Which expands to

Message . . . . : Java exception received when calling Java method.

Cause . . . . . : RPG procedure SETUP_ANP_ in program MR0473/AHM190R

received Java exception "java.lang.NoSuchMethodError: toByteArray"
when
calling method "toByteArray" with signature "()[B" in class

"org.apache.poi.util.IOUtils".


I think this means that I have not defined the method properly in the
RPG/ILE but I am at a loss as to how to define it so the signature
matches. Does anyone have any idea what I need to do so it matches?

HELP!

Marvin