Re: ILERPG call to Java get list fails and generates core dump

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

Don,

Forgive me if this is a stupid question, but...   You told us the method 
was "java.util.List getIds()".   But you appear to be calling 
"com.braintreegateway.ResourceCollection getIds()".

So...  why don't these match?  Is there more than one getIds() method? 
If so, can you show us the signature et al for the braintree one so that 
we can see the signature for the one you're trying to call?

-SK





On 1/5/2017 3:08 AM, Don Brown wrote:
> I am hoping someone can point me in the right direction with this one.
>
> Java is crashing when I use a method that should return a java list
> object..
>
> I checked the class using the javap -s command in qsh I get the details
> about the class; (All class details from this are included below)
>
> The method I am using is gstIds
> public java.util.List getIds();
>   Signature: ()Ljava/util/List;
>
> I have the prototype defined in my program as follows;
>
> D getIds          PR              O   ExtProc(*JAVA:
> D                                     'com.braintreegateway.-
> D                                     ResourceCollection':'getIds')
> D                                     Class(*JAVA:'java.util.List')
>
> D listIdJ         S               O   Class(*JAVA:'java.util.List')
>
> The following code snippet precedes the error but running in debug all
> statements complete normally
>
> // Create search request
> transReqJ = transReqC();
> dateParamsJ = dateParams(transReqJ);
> transreqJ = setRange(dateParamsJ: startJ: endJ);
> transGatewayJ = transGateway(gateway);
>
> // Retrieve the transactions
> result = search(transGatewayJ: transReqJ);
>
> When the following line is executed it results in a gpf and system dump.
> There is a stack trace showing on the screen but is meaningless to me -
> See below.
>
> listIdJ  = getIds(result);
>
> The joblog shows error MSG:RNX0301 Java exception received when calling
> Java method.
> Cause . . . . . :   RPG procedure STTAPP100R in program XAPSW/STTAPP100R
>   received Java exception "**UNKNOWN ERROR**" when calling method "getIds"
>
>   with signature "()Ljava.util.List;" in class
>   "com.braintreegateway.ResourceCollection".
>
>
> Results from javap -s
>
> javap -s  com.braintreegateway.ResourceCollection
>
> The java.version property was detected as input. This property is used as
> output only and has no effect on JVM initialization.
> Compiled from "ResourceCollection.java"
> public class com.braintreegateway.ResourceCollection extends
> java.lang.Object implements java.lang.Iterable{
> public com.braintreegateway.ResourceCollection(com.braintreegateway.Pager,
> com.braintreegateway.util.NodeWrapper);
>   Signature:
> (Lcom/braintreegateway/Pager;Lcom/braintreegateway/util/NodeWrapper;)V
>
> public int getMaximumSize();
>   Signature: ()I
> public java.util.Iterator iterator();
>   Signature: ()Ljava/util/Iterator;
> public java.lang.Object getFirst();
>   Signature: ()Ljava/lang/Object;
> public java.util.List getIds();
>   Signature: ()Ljava/util/List;
> static java.util.List access$000(com.braintreegateway.ResourceCollection);
>
>   Signature: (Lcom/braintreegateway/ResourceCollection;)Ljava/util/List;
>
>
> Stack Trace from screen when error occurs
>
> ----------- Stack Backtrace -----------
> gpProtectedRunCallInMethod+0x24 (0xD07F3BC0 [libj9vm24.so+0x15bc0])
> signalProtectAndRunGlue+0x14 (0xD080F090 [libj9vm24.so+0x31090])
> j9sig_protect+0x138 (0xD0872F54 [libj9prt24.so+0x1f54])
> gpProtectAndRun+0xc4 (0xD080F19C [libj9vm24.so+0x3119c])
> gpCheckCallin+0x44 (0xD07F4398 [libj9vm24.so+0x16398])
> callVirtualObjectMethodA+0x38 (0xD07F8538 [libj9vm24.so+0x1a538])
> J9_i5OS_CallObjectMethodA+0xac (0xD054C8B0 [libi5osenv.so+0xd8b0])
> (0x000036F0)
>
>
> Don Brown