JAVA UFL java-heap problem

Hi,
Outline
I have developed a User Function Library (UFL) in Java to Internationalize the reports. I have followed the guide provided by BusinessObject: http://www.sdn.sap.com/irj/boc/index?rid=/library/uuid/20d050fc-6464-2b10-88aa-a31e24c4febf&overridelayout=true
System Specifications:
Windows XP
Intel Pentium 4 CPU 3.00GHz
Memory: 3 GB (RAM)
Crystal Reports: 2008 version 12.1.3.1028
Java: JDK 1.6.0.13
Problem
Run into a Java heap space when the report is refreshing.
Description.
I open the report and click the refresh button. The report starts to quickly fetch data but then starts to slow down, it comes to the point where it stops fetching data. After a few seconds, the Formula Editor pops-up, highlights the Internationalization formula and then another small window titled "Crystal Reports" pops up with the message "Java heap space".
Comments
I know that I am running into a memory problem. I have check my memory in the Wondows Task Manager under the tab Performance and I see that my memory never reaches the maximum amount I have. I have also tried changing the Java versions, have also tried the UFL with Crystal reports XI and also tried with different computers all with which I get the same problem.
Has anyone encountered the same problem, if so, how were you able to fix it?
Thank you very much for your help.
Valentine

Valentine,
How big is the report? I had a similar problem when trying to produce a large report, although it did not have any UFL reference.
I increased the JVM stack size with the "-Xms32m -Xmx256m" flags.
But for the life of me I cannot remember where I set this from running within Eclipse. I will have a look around and see
if I can remember, but in the mean time it might help.
Darren

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<html xmlns="http://www.w3.org/1999/xhtml">
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this problem is about learning how to use threads/synchronise objects etc, the efficiency of the code isn't really an issue, if that's what you mean. As for the efficiency of the solution, it's very hard to tell how efficient it is, but as long as all the philosphers get to eat there's no problem. I haven't really scrutized your code, but I'm not sure that you have a deadlock free solution: as long as it is possible for all the phils to pick up one fork at the same time there's a problem, and it seems from your code that each philosopher will pick up "his" fork. Again, I could be wrong, I haven't really looked. If you haven't come up with a solution, try drawing it on paper and working it out, or if you're lazy a quick google will probably give you the answer, but I'm pretty sure nobody here will :)

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Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
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java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
Java HotSpot(TM) Client VM (build 16.3-b01, mixed mode, sharing)
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Edited by: vecdran on Jun 20, 2010 11:23 AM

[Bug ID 4711700|http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4711700] is eerily similar to what you're experiencing. Although the bug was reported against an older version of the JDK the last comment provides a workaround to the problem that may be helpful. Good luck.

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CA Forum: Migration to XI R2
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at sun.applet.AppletPanel.run(AppletPanel.java:365)
at java.lang.Thread.run(Thread.java:613)
Exception in thread "thread
applet-com.efi.appls.webtools.WebToolsApplet.class"
java.lang.NullPointerException
at sun.plugin.util.GrayBoxPainter.showLoadingError(GrayBoxPainter.java:153)
at sun.plugin.AppletViewer.showAppletException(AppletViewer.java:1968)
at sun.applet.AppletPanel.run(AppletPanel.java:529)
at java.lang.Thread.run(Thread.java:613)
========================================
This appears like a permissions problem, but I've fixed permissions several times.
Any idea what the problem is, and is it fixable from my end?

Problem has finally -- over a year later -- just gone away.

Will Java UFLs satisfy reports designed with COM UFLs

cr_xi_java_ufl.pdf notes that "When using Crystal Reports" to design reports that contain user-defined function libraries (UFL), you can use only Java UFLs or only COM UFLs, but not both".
Is that purely a statement about configuring the Developer to access the UFLs or does it indicate some sort of distinction between COM and Java UFLs.
In particular can I take a report designed on Microsoft Windows and including a call to a UF that happened to be exposed by a COM UFL and then run it under Crystal Reports Server XI R2 for Linux using JRC and have the function call evaluated by a Java UF of the same signature within a Java UFL?

Business Objects led me wrong. Java UFLs DO satisfy reports designed with COM UFLs.
If I take a report that was designed under Microsoft Windows and I added functions that were there via COM UFLs (certainly I have proved it by typing the UFL name in directly into the formula editor; I presume it will also work if you drag the COM UFL into the formula editor) and I then place that rpt file on my Linux machine and view that report using Crystal Reports Server XI R2 and Tomcat and JRC and I have Java UFLs on that Linux machine that have the same name and arguments as the COM one then the report runs OK and the Java UFLs do their job.
(Now that is great news)

How can I expend(use) the JAVA UFL in CR XI?

Dear Expert, Now I found the "u211java.jar" file and follow the guide to finish the JAVA UFL implement. My setp is:1. Add following file to the CLASSPATH: CrystalFormulas.jar ,CrystalReportingCommon.jar ,u211java.jar,log4j.are,icu4j.jar, Myfunction.class, MyLibrary.class2. Set JAVA_HOME to D:\JDK1.53. Add the following registry key under HKEY_LOCAL_MACHINE\SOFTWARE\Business Objects\Suite 11.0\Crystal Reports : JREPath = path_to_J2SDK\jre\bin\client\jvm.dll4. Add reference to the library to the CRConfig.xml file. <ExternalFunctionLibraryClassNames> <classname>MyLibrary</classname></ExternalFunctionLibraryClassNames>But when I open the CR and enpand the "Additional Function", I can't find anything like the guide show. Could you tell me how to find the root cause and how to fix it? Many thanks!Steven

Java UFLs currently do not work with BusinessObjects Enterprise. Only the COM UFLs work with Enterprise.Currently the Java UFLs only work with the Java Reporting Component which comes with Crystal Reports Developer or Crystal Reports for Eclipse. Rob Horne <a href="/blog/10">Rob's blog - http://diamond.businessobjects.com/blog/10</a>

Java.lang.OutOfMemoryError: heap allocation failed

Hi,
I am facing a strange which i cannot debug..
Could anyone let me know what could be the exact reason for this kind of error...
Exception in thread "172.24.36.74:class=SnmpAdaptorServer_172.24.36.74,protocol=snmp,port=161" java.lang.OutOfMemoryError: heap allocation failed
     at java.net.PlainDatagramSocketImpl.receive0(Native Method)
     at java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:136)
     at java.net.DatagramSocket.receive(DatagramSocket.java:712)
     at com.sun.management.comm.SnmpAdaptorServer.doReceive(SnmpAdaptorServer.java:1367)
     at com.sun.management.comm.CommunicatorServer.run(CommunicatorServer.java:617)
     at java.lang.Thread.run(Thread.java:595)
terminate called after throwing an instance of 'std::bad_alloc'
what(): St9bad_alloc
Ur help on this is very much appreciated...
Srinivasan.

You are trying to receive a Datagram with an enormous byte array. The maximum size of a UDP datagram is 65535-28=65507 bytes, and the maximum practical size is 534 bytes.
Best practice with UDP is to use a byte array one larger than the largest expected datagram, so you can detect truncations: if the size of the received datagram = the size of the byte array, you received an unexpectedly large message and it has probably been truncated.

Cannot get Java UFL to work on Vista

Hi,we are having trouble getting our Java UFL to work in CR Designer on a machine running Vista. The same UFL works fine on a XP system. Doing the same setup on the Vista machine simple does not show the "Java UFLs" node in Formula Workshop's function tree. Additional functions is just empty...Are there any special configurations to be done on Vista? Is there any chance to get a detailed error message? (no log4j output is generated) Thanks for any ideasStefan  

Sorry. My advice stands.
Troubleshooting an unsupported system is an exercise in futility. You may or may not succeed but you'll always have the risk of something else going wrong at the worst possible time.
Bob

Java VM: Java HotSpot(TM) Error in weblogic 8.1 while running crystal rep

I am trying to call crystal reports 9 RAS through weblogic 8.1.
I am running a jsp.
weblogic has jdk141_03.
But, I am getting error at the below line in the jsp.
ReportClientDocument clientDoc = new ReportClientDocument();
The weblogic server crashes out giving below error.
# HotSpot Virtual Machine Error, Internal Error
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
# Java VM: Java HotSpot(TM) Client VM (1.4.1_03-b02 mixed mode)
# Error ID: 43113F32554E54494D45110E4350500305
# Problematic Thread: prio=5 tid=0x008E12C8 nid=0x6ec runnable
Does anyone know the solution.
thanks..

i got the sam problem have you fix it yet ?
please let me know what should i do.

Oracle BI 11.1.1.7.1: Calling BI webservices from Plsql Procedure: ORA-29532: Java call terminated by uncaught Java exception: java.lang.NoClassDefFoundError

Hi,
 I have a requirement of calling BI webservices from Plsql stored procedure. I generated all my wsdl java classes and loaded them into the database. However, when I tried to call one of my java class using stored procedure, it is giving me"ORA-29532: Java call terminated by uncaught Java exception: java.lang.NoClassDefFoundError".
*Cause: A Java exception or error was signaled and could not be
 resolved by the Java code.
*Action: Modify Java code, if this behavior is not intended.
But all my dependency classes are present in database as java class objects and are valid. Can some one help me out of this?

Stiphane,
You can look in USER_ERRORS to see if there's anything more specific reported by the compiler. But, it could also be the case that everything's OK (oddly enough). I loaded the JavaMail API in an 8.1.6 database and also got bytecode verifier errors, but it ran fine. Here are the errors I got when loading Sun's activation.jar, which ended up not being a problem:
ORA-29552: verification warning: at offset 12 of <init> void (java.lang.String, java.lang.String) cannot access class$java$io$InputStream
verifier is replacing bytecode at <init> void (java.lang.String, java.lang.String):12 by a throw at offset 18 of <init> void (java.lang.String, java.lang.String) cannot access class$java$io$InputStream
verifier is replacing bytecode at <init> void (java.lang.String, java.lang.String):18 by a throw at offset 30 of <init> void (java.lang.String, java.lang.String) cannot access class$java$io$InputStream
verifier is replacing bytecode at <init> void (java.lang.String, java.lang.String):30 by a throw
Hope this helps,
-Dan
http://www.compuware.com/products/devpartner/db/oracle_debug.htm
Debug PL/SQL and Java in the Oracle Database

JAVA UFL java-heap problem

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