Re: Class Not Found

["Mark Murphy/STAR BASE Consulting Inc." <mmurphy@xxxxxxxxxxxxxxx>]

That's the answer, I was certain that I tried logging off and back on again after I bombed it the first time, but I must still have had an environment error in there and fixed it after I signed off and signed back on.

Mark Murphy
STAR BASE Consulting, Inc.
mmurphy@xxxxxxxxxxxxxxx


-----Scott Klement <midrange-l@xxxxxxxxxxxxxxxx> wrote: ----- 
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
From: Scott Klement <midrange-l@xxxxxxxxxxxxxxxx>
Date: 06/26/2015 02:20PM
Subject: Re: Class Not Found

Mark,

It's important when calling Java from RPG that the CLASSPATH be set 
before any Java is used in the job.  It only reads this environment 
variable once -- and that's done the first time any Java is used for the 
entire job.

So if you are running this interactively sign off and back on again. 
Then set the CLASSPATH, then try the program again so that you know it's 
the first time it's used in the job.

Other than that, I don't see why your example wouldn't work.

-SK


On 6/26/2015 12:53 PM, Mark Murphy/STAR BASE Consulting Inc. wrote:
> I am having trouble with Scott Klements POI examples, specifically it can't find the HSSFWorkbook class.
>
> Here's my classpath (i know it is short, but the class in question should be found at least)
>
>                         Display Environment Var (*JOB)
>
> Name  . . . . . . . . . :   CLASSPATH
>
>
> Value . . . . . . . . . :   '/java/poi-3.11/poi-3.11-20141221.jar'
>
> (I know there are a lot of things missing, but this one jar should contain the class I am looking for right now).
>
> Here is the error:
>
>                         Additional Message Information
>
> Message ID . . . . . . :   RNQ0301       Severity . . . . . . . :   99
> Message type . . . . . :   Inquiry
> Date sent  . . . . . . :   06/26/15      Time sent  . . . . . . :   12:18:43
>
> Message . . . . :   Java exception received when calling Java method (C G D
>   F).
> Cause . . . . . :   RPG procedure XLCRTDEMO in program POI36/XLCRTDEMO
>   received Java exception "java.lang.NoClassDefFoundError:
>   org.apache.poi.hssf.usermodel.HSSFWorkbook" when calling method "<init>"
>   with signature "()V" in class "org.apache.poi.hssf.usermodel.HSSFWorkbook".
> Recovery  . . . :   Contact the person responsible for program maintenance to
>   determine the cause of the problem.
> Possible choices for replying to message . . . . . . . . . . . . . . . :
>   D -- Obtain RPG formatted dump.
>   S -- Obtain system dump.
>   G -- Continue processing at *GETIN.
>   C -- Cancel.
>   F -- Obtain full formatted dump.
> Technical description . . . . . . . . :   If the exception indicates that the
>   Java class was not found, ensure the class for the method is in the class
>   path. If the exception indicates that the Java method was not found, check
>   the method name and signature. If the signature is not correct, change the
>   RPG prototype for the method, or change the Java method, so that the return
>   type and parameter types match. You can determine the signatures for all the
>   methods in class XYZ using command QSH CMD('javap -s XYZ').
>
> Class not found, but this is a partial listing of /java/poi-3.11/poi-3.11-20141221.jar:
>    48842 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/usermodel/HSSFSheet.class
>     8073 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/usermodel/HSSFSheetConditionalFormatting.class
>     8574 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/usermodel/HSSFSimpleShape.class
>     8258 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/usermodel/HSSFTextbox.class
>     1623 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/usermodel/HSSFWorkbook$SheetRecordCollector.class
>    45991 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/usermodel/HSSFWorkbook.class             <<<<<
>     2622 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/usermodel/HeaderFooter$MarkupTag.class
>     4946 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/usermodel/HeaderFooter.class
>     3404 Wed Dec 17 01:02:58 EST 2014 org/apache/poi/hssf/usermodel/StaticFontMetrics.class
>      729 Wed Dec 17 01:02:58 EST 2014 org/apache/poi/hssf/util/AreaReference.class
>      656 Wed Dec 17 01:02:58 EST 2014 org/apache/poi/hssf/util/CellRangeAddress.class
>     2030 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/util/CellRangeAddress8Bit.class
>     1108 Wed Dec 17 01:02:58 EST 2014 org/apache/poi/hssf/util/CellRangeAddressList.class
>      841 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/util/CellReference.class
>     3248 Wed Dec 17 01:02:58 EST 2014 org/apache/poi/hssf/util/HSSFCellUtil.class
>      845 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/util/HSSFColor$AQUA.class
>     1013 Wed Dec 17 01:02:56 EST 2014 org/apache/poi/hssf/util/HSSFColor$AUTOMATIC.class
>
> The class is obviously there.
>
> I did the following in QShell, this is a partial list of environment variables
>   OSTYPE=os400
>   MACHTYPE=powerpc-ibm-os400
>   CLASSPATH=/java/poi-3.11/poi-3.11-20141221.jar       <<<< This is the whole classpath for this session
>   TERMINAL_TYPE=5250
>   PATH=/usr/bin:.:/QOpenSys/usr/bin
>
> Yet I get the following error:
>   $
> > javap -s org.apache.poi.hssf.usermodel.HSSFWorkbook
>   ERROR:Could not find org.apache.poi.hssf.usermodel.HSSFWorkbook
>
> and here is what that directory looks like:
>   $
> > cd /java/poi-3.11
>   $
> > ls
>   poi-3.11-20141221.jar
>   $
>
> How do I coerce java to find the class? In qshell and RPG.
>
>
> Mark Murphy
> STAR BASE Consulting, Inc.
> mmurphy@xxxxxxxxxxxxxxx