Passing parameters to Java JT400 object

Question

I need to pass a byte array as my input and an int as the output length for the Class ProgramCall.
My error is   
parameterList[0] (null): Parameter value is not valid.
My thoughts are
I think (but I'm not completely sure) I'm having trouble because I'm passing a Coldfusion Array where a Java Array is needed to pass the arguments.
Coldfusion arrays start at index 1 and Java Arrays start at index 0.
(1) Am I correct in what I believe is causing my error?
(2) How can I convert the Coldfusion Array to a Java Array?
Here is the documentation for Java JT400 object Class ProgramCall
http://publib.boulder.ibm.com/iseries/v5r1/ic2924/info/rzahh/javadoc/com/ibm/as400/access/ ProgramCall.html
Here is my code
<!--- I am the system object --->
<cfobject
        action="create"
        type="java"
        class="com.ibm.as400.access.AS400"
        name="mysystem">
<!--- I am the program call object ---> 
<cfobject
        action="create"
        type="java"
        class="com.ibm.as400.access.ProgramCall"
        name="myprogram">
<!--- I am the program parameter object ---> 
<cfobject
        action="create"
        type="java"
        class="com.ibm.as400.access.ProgramParameter"
        name="myparameter">
<!--- I am the as400 text object ---> 
<cfobject
        action="create"
        type="java"
        class="com.ibm.as400.access.AS400Text"
        name="mytext">
<!--- Initialize our system object --->
<cfset mysystem.init(AS400system,Trim(UCase(loginname)),Left(Trim(loginpass),10)) />
<!--- Execute our AS400 username validation --->
<cfset mysystem.ValidateSignon() />
<!--- Initialize our as400 text object and convert string to a byte array --->
<cfset mytext.init(5) />
<cfset nametext = mytext.toBytes("hello") />
<!--- Initalize our program parameter object --->
<cfset myparameter.init(2) />
<!--- Set input data and output data length using the Class methods of ProgramParameter --->
<cfset myparameter.setInputData(nametext) />
<cfset myparameter.setOutputDataLength(20) />
<!--- Set parameters to a Coldfusion Array --->
<cfset parameterlist = ArrayNew(1) />
<cfset parameterlist[1] = myparameter.getInputData() />
<cfset parameterlist[2] = myparameter.getOutputDataLength() />
<!--- Initalize our program object and run our program --->
<cfset myprogram.init(iseries,ProgramtoRun, parameterlist) />
<cfset myprogram.run() />

Answer 1

reggiejackson44 wrote:
I need to pass a byte array as my input and an int as the output length for the Class ProgramCall.
My error is   
parameterList[0] (null): Parameter value is not valid.
My thoughts are
I think (but I'm not completely sure) I'm having trouble because I'm passing a Coldfusion Array where a Java Array is needed to pass the arguments.
Coldfusion arrays start at index 1 and Java Arrays start at index 0.
(1) Am I correct in what I believe is causing my error?
(2) How can I convert the Coldfusion Array to a Java Array?
(1) Yes.
(2) A ColdFusion array and a Java array are 2 entirely different things. You have yourself identified one difference, the starting index. In fact, the following line of code will tell you that a ColdFusion array is essentially a Java vector.
<cfoutput>#arrayNew(1).getClass().getSuperClass().getname()#</cfoutput>
In my opinion, your question should read the other way around: how to convert a Java array into ColdFusion, not necessarily into a ColdFusion array.
Here are some tips and tricks:
http://blogs.adobe.com/cantrell/archives/2004/01/byte_arrays_and_1.html
http://www.bennadel.com/blog/1030-Building-Java-Arrays-In-ColdFusion-Using-Reflection.htm