Java test class

Hello,
have a problem with writing test class in Java for Chat testing.
So, I need to simulate 1000 Users who connected to chat server(PHP).
If I understand, i have to make one thread for each user and send request to the chat server, say for each message I give 10 sec.
Any suggestions?
Thx a lot.
PS: Jnewbe.

Not to disagree with Noviato's suggestions, which are all excellent pointers, but I do want to point out that what you are trying to do is a 'hard problem'. To really load test a system, you normally need to buy commercial software. The problem is that spinning off threads (all of the same priority, and especially a thousand of them) will almost certainly lead to starvation. The commercial programs go through a lot of hoops to create dedicated processes (instead of threads) and ensure the operating system executes them properly.
- Saish

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How to test Java Proxy Classes in Portal

I have created a Java Project in NWDS and have added Java Proxy classes for BAPI_EMPLOYEE_GETDADA. I have created a main class to call the Java Proxy Classes.
I have noticed that I can not export it as .PAR file so I exported it as .JAR file. Now I logged into my Portal Server to test this new Java Proxy class but I do not see the .JAR file that I had created. Do I need to explicitly import it into Portal Server (I was thinking that similar to .PAR files, .JAR file will get transferred to the portal server automatically upon chosing Export from NWDS)
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Please advise me on how can I test my Java Proxy Class.
Thanks a lot in advance.
Regards,
Sanjay Gera

Hi,
You can try with HTTP as sender. Send a HTTP request using HTTP Client code and check out the response.
For HTTP, sender communication channel is not required. All other steps in Configuration will be similar to any simple scenario.
Regards,
Uma

XSLT mapping with Java helper classes

Hi,
I'm trying to implement a XSLT mapping to convert my request to a specific soap request message format for this I'm calling some methods from a java helper class. I have imported the jar file into the archives. When I tried to test the interface it keeps complaing there is some exception but doesn't give me the exact error. Has any one called any java helper classes with in XSLT mapping, if so I would appreciate if you could help me with this. Here is the code from xsl.
<wsse:Security soapenv:actor="http://schemas.xmlsoap.org/soap/actor/next" soapenv:mustUnderstand="0" xmlns:wsse="http://schemas.xmlsoap.org/ws/2002/07/secext"   xmlns:UserToken="java:com.company.test.mapping.UserTokenMap">
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</wsu:Created>
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Thanks,
Joe

Hi,
I'm getting following exception when I refer to the java class with in my XSLT mapping. Any one encountered the same problem.
com.sap.engine.services.ejb.exceptions.BaseRemoteException:
Exception in method transform.
     at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0.transform(MapServiceRemoteObjectImpl0.java:218)
     at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0p4_Skel.dispatch(MapServiceRemoteObjectImpl0p4_Skel.java:104)
     at com.sap.engine.services.rmi_p4.DispatchImpl._runInternal(DispatchImpl.java:320)
     at com.sap.engine.services.rmi_p4.DispatchImpl._run(DispatchImpl.java:198)
     at com.sap.engine.services.rmi_p4.server.P4SessionProcessor.request(P4SessionProcessor.java:129)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native
Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: java.lang.UnsupportedClassVersionError:
com/earthlink/xi/mapping/UserTokenMap (Unsupported
major.minor version 49.0)
     at java.lang.ClassLoader.defineClass0(Native
Method)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:448)
     at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingLoader.findClass(RepMappingLoader.java:175)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
     at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
     at com.sap.engine.lib.xsl.xpath.JLBLibrary.<init>(JLBLibrary.java:33)
     at com.sap.engine.lib.xsl.xpath.LibraryManager.getFunction(LibraryManager.java:69)
     at com.sap.engine.lib.xsl.xpath.ETFunction.evaluate(ETFunction.java:98)
     at com.sap.engine.lib.xsl.xpath.XPathProcessor.innerProcess(XPathProcessor.java:56)
     at com.sap.engine.lib.xsl.xpath.XPathProcessor.process(XPathProcessor.java:43)
     at com.sap.engine.lib.xsl.xpath.XPathProcessor.process(XPathProcessor.java:51)
     at com.sap.engine.lib.xsl.xslt.XSLValueOf.process(XSLValueOf.java:76)
     at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
     at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
     at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
     at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
     at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
     at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
     at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
     at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
     at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
     at com.sap.engine.lib.xsl.xslt.XSLElement.process(XSLElement.java:248)
     at com.sap.engine.lib.xsl.xslt.XSLNode.processFromFirst(XSLNode.java:296)
     at com.sap.engine.lib.xsl.xslt.XSLTemplate.process(XSLTemplate.java:272)
     at com.sap.engine.lib.xsl.xslt.XSLStylesheet.process(XSLStylesheet.java:463)
     at com.sap.engine.lib.xsl.xslt.XSLStylesheet.process(XSLStylesheet.java:431)
     at com.sap.engine.lib.xsl.xslt.XSLStylesheet.process(XSLStylesheet.java:394)
     at com.sap.engine.lib.jaxp.TransformerImpl.transformWithStylesheet(TransformerImpl.java:398)
     at com.sap.engine.lib.jaxp.TransformerImpl.transform(TransformerImpl.java:240)
     at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingTransformer.transform(RepMappingTransformer.java:150)
     at com.sap.aii.ibrep.server.mapping.ibrun.RepXSLTMapping.execute(RepXSLTMapping.java:81)
     at com.sap.aii.ibrep.server.mapping.ibrun.RepSequenceMapping.execute(RepSequenceMapping.java:54)
     at com.sap.aii.ibrep.server.mapping.ibrun.RepMappingHandler.run(RepMappingHandler.java:80)
     at com.sap.aii.ibrep.server.mapping.rt.MappingHandlerAdapter.run(MappingHandlerAdapter.java:107)
     at com.sap.aii.ibrep.server.mapping.ServerMapService.transformInterfaceMapping(ServerMapService.java:127)
     at com.sap.aii.ibrep.server.mapping.ServerMapService.transform(ServerMapService.java:104)
     at com.sap.aii.ibrep.sbeans.mapping.MapServiceBean.transform(MapServiceBean.java:40)
     at com.sap.aii.ibrep.sbeans.mapping.MapServiceRemoteObjectImpl0.transform(MapServiceRemoteObjectImpl0.java:167)
     ... 10 more
; nested exception is:
     java.lang.UnsupportedClassVersionError:
com/earthlink/xi/mapping/UserTokenMap (Unsupported
major.minor version 49.0)

Unable to run ADFBC JUNIT Test Classes with JDEV11G 11.1.1.6

Dear All,
I upgraded my project to the latest release JDEV 11G 11.1.1.6
Previously we are on JDEV 11G 11.1.1.5
I have a JUNIT class that I am running which test my ADFBC components.
public class MyTestClass {
@Test
public void testVOAccess()
    //assertions
}Unfortunately, I am hitting an error like this from the messages.
Mar 9, 2012 1:28:07 PM oracle.adf.share.ADFContext getCurrent
WARNING: Automatically initializing a DefaultContext for getCurrent.
Caller should ensure that a DefaultContext is proper for this use.
Memory leaks and/or unexpected behaviour may occur if the automatic initialization is performed improperly.
This message may be avoided by performing initADFContext before using getCurrent().
For more information please enable logging for oracle.adf.share.ADFContext at FINEST level.
Mar 9, 2012 1:28:08 PM oracle.security.jps.internal.config.xml.XmlConfigurationFactory initDefaultConfiguration
SEVERE: org.xml.sax.SAXParseException: Invalid encoding name "Cp1252".
Mar 9, 2012 1:28:10 PM oracle.mds
NOTIFICATION: PManager instance is created without multitenancy support as JVM flag "oracle.multitenant.enabled" is not set to enable multitenancy support.
Mar 9, 2012 1:28:12 PM oracle.security.jps.internal.config.xml.XmlConfigurationFactory initDefaultConfiguration
SEVERE: org.xml.sax.SAXParseException: Invalid encoding name "Cp1252".
Mar 9, 2012 1:28:12 PM oracle.adf.share.jndi.ReferenceStoreHelper getReferencesMapEx
WARNING: Incomplete connection reference object for connection:MYDATASOURCEAt the JUNIT Test Runner, I see this.
java.lang.ExceptionInInitializerError: null
     java.lang.reflect.Constructor.newInstance(Constructor.java:513)
     org.junit.runners.BlockJUnit4ClassRunner.createTest(BlockJUnit4ClassRunner.java:171)
     org.junit.runners.BlockJUnit4ClassRunner$1.runReflectiveCall(BlockJUnit4ClassRunner.java:216)
Caused by: oracle.jbo.DMLException: JBO-26061: Error while opening JDBC connection.
     oracle.jbo.server.ConnectionPool.createConnection(ConnectionPool.java:207)
     oracle.jbo.server.ConnectionPool.instantiateResource(ConnectionPool.java:166)To validate the issue, I tried to run my same project using the older release which is JDEV 11G 11.1.1.5
and I see that I am not hitting any error. All my test classes runs fine.
Has anybody replicated this?
Thanks

Didier Laurent wrote:
I logged the following bug for this issue:
bug 14030895 - REGR: JDEVELOPER 11.1.1.6.0 JUNIT JBO-26061 ERROR WHILE OPENING JDBC CONNECTION
Regards,
Didier.So its really a bug..
I abandon this already since I cannot find any solution to look up for this.
On the other hand, I am maintaining two jdeveloper version just to get around this problem.
When testing ADFBC, I used the 11.1.1.5 while for non-junit test I used the 11.1.1.6
Hopefully this gets fixed on the next release as I am having a hard time swithcing between two JDev version.
Thanks
Edited by: Neliel on May 3, 2012 11:42 PM

Java.lang.Class- getFields() results in JVM crash when called through JNI

From a C++ application, I use Invocation APIs to create a JVM and call some Java methods using JNI
I get a crash in jvm.dll with EXCEPTION_ACCESS_VIOLATION
when I try to call "getFields" method of java.lang.Class in order to get the Fields of the java class
This method call, should return a java/lang/reflect/Fields[] on success
I am able to get the method ID of this method by using pEnv->GetMethodID(..)
However, when I call this method using CallObjectMethod(..), HotSpt JVM crashes with access violation with the dump given below.
Any clues on how to debug and find the problem?
Or has anyone tried getting the fields of a Java class from C++ by calling reflection APIs uing JNI?
Thanks in advance!
Sample code
jclass testerClass = pEnv->FindClass("com/test/Tester");
jmethodID cid = pEnv->GetMethodID(testerClass,"<init>","()V");
if(NULL == cid)
pEnv->ExceptionDescribe();
jobject testerObject = pEnv->NewObjectV(testerClass, mid);
jmethodID mid = pEnv->GetMethodID(testerClass, "getClass",
                         "()Ljava/lang/Class;");
jobject clsObj = (jobject)pEnv->CallObjectMethod(testerObject, mid);
pEnv->ExceptionDescribe();
jclass      jCls = pEnv->GetObjectClass(clsObj);
jmethodID midGetFields = pEnv->GetMethodID(jCls, "getFields",
                                        "()[Ljava/lang/reflect/Field;");
jobjectArray jobjArray = (jobjectArray)pEnv->CallObjectMethod(testerObject, midGetFields);
pEnv->ExceptionDescribe();
Crash dump
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x809E69F
Function=JVM_FindSignal+0x11505
Library=D:\Java\j2re1.4.2_03\bin\client\jvm.dll
Current Java thread:
     at java.lang.Class.privateGetDeclaredFields(Unknown Source)
     at java.lang.Class.privateGetPublicFields(Unknown Source)
     at java.lang.Class.getFields(Unknown Source)
Dynamic libraries:
0x00400000 - 0x00419000      E:\SC\SC12.1\SCApplications\SNMP\Bin\JNITester.exe
0x77F50000 - 0x77FF7000      C:\WINDOWS\System32\ntdll.dll
0x77E60000 - 0x77F46000      C:\WINDOWS\system32\kernel32.dll
0x10000000 - 0x10023000      E:\SC\SC12.1\SCApplications\SNMP\Bin\JniUtils.dll
0x00320000 - 0x00332000      E:\SnmpIpmNativeTestDriver\MTFStubHelper.dll
0x00340000 - 0x0035B000      E:\SnmpIpmNativeTestDriver\MTFXMLFileAPI.dll
0x12000000 - 0x122B1000      e:\sc\sc12.1\bin\xerces-c_2_2_0D.dll
0x77DD0000 - 0x77E5D000      C:\WINDOWS\system32\ADVAPI32.dll
0x78000000 - 0x78086000      C:\WINDOWS\system32\RPCRT4.dll
0x10200000 - 0x1026C000      e:\sc\sc12.1\bin\MSVCRTD.dll
0x102A0000 - 0x102B7000      e:\sc\sc12.1\bin\MSVCIRTD.dll
0x5F800000 - 0x5F8E9000      e:\sc\sc12.1\bin\MFC42uD.DLL
0x77C70000 - 0x77CB0000      C:\WINDOWS\system32\GDI32.dll
0x77D40000 - 0x77DCC000      C:\WINDOWS\system32\USER32.dll
0x5F700000 - 0x5F746000      e:\sc\sc12.1\bin\MFCD42uD.DLL
0x5F500000 - 0x5F5C6000      e:\sc\sc12.1\bin\MFCO42uD.DLL
0x10480000 - 0x104FE000      e:\sc\sc12.1\bin\MSVCP60D.dll
0x15020000 - 0x15042000      e:\sc\sc12.1\bin\SCTraceLib.dll
0x6D510000 - 0x6D58D000      C:\WINDOWS\System32\dbghelp.dll
0x77C10000 - 0x77C63000      C:\WINDOWS\system32\msvcrt.dll
0x77C00000 - 0x77C07000      C:\WINDOWS\system32\VERSION.dll
0x00360000 - 0x0037D000      e:\sc\sc12.1\bin\SCFileManager.dll
0x76BF0000 - 0x76BFB000      C:\WINDOWS\System32\PSAPI.DLL
0x00420000 - 0x00580000      e:\sc\sc12.1\bin\BctCoreCL.dll
0x5D920000 - 0x5D929000      C:\WINDOWS\System32\RPCNS4.dll
0x71B20000 - 0x71B31000      C:\WINDOWS\system32\MPR.dll
0x71C20000 - 0x71C6E000      C:\WINDOWS\System32\NETAPI32.dll
0x71AB0000 - 0x71AC5000      C:\WINDOWS\System32\WS2_32.dll
0x71AA0000 - 0x71AA8000      C:\WINDOWS\System32\WS2HELP.dll
0x15000000 - 0x15012000      e:\sc\sc12.1\bin\CTEventLog.dll
0x773D0000 - 0x77BC2000      C:\WINDOWS\system32\SHELL32.dll
0x70A70000 - 0x70AD4000      C:\WINDOWS\system32\SHLWAPI.dll
0x771B0000 - 0x772D1000      C:\WINDOWS\system32\ole32.dll
0x77120000 - 0x771AB000      C:\WINDOWS\system32\OLEAUT32.dll
0x1F7A0000 - 0x1F7D6000      C:\WINDOWS\System32\ODBC32.dll
0x77340000 - 0x773CB000      C:\WINDOWS\system32\COMCTL32.dll
0x763B0000 - 0x763F5000      C:\WINDOWS\system32\comdlg32.dll
0x08000000 - 0x08138000      D:\Java\j2re1.4.2_03\bin\client\jvm.dll
0x76B40000 - 0x76B6C000      C:\WINDOWS\System32\WINMM.dll
0x5FD00000 - 0x5FD0D000      C:\WINDOWS\System32\MFC42LOC.DLL
0x71950000 - 0x71A34000      C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.10.0_x-ww_f7fb5805\comctl32.dll
0x1F840000 - 0x1F857000      C:\WINDOWS\System32\odbcint.dll
0x5DAC0000 - 0x5DAC7000      C:\WINDOWS\System32\rdpsnd.dll
0x00FE0000 - 0x00FE7000      D:\Java\j2re1.4.2_03\bin\hpi.dll
0x01000000 - 0x0100E000      D:\Java\j2re1.4.2_03\bin\verify.dll
0x01010000 - 0x01029000      D:\Java\j2re1.4.2_03\bin\java.dll
0x01030000 - 0x0103D000      D:\Java\j2re1.4.2_03\bin\zip.dll
0x76C90000 - 0x76CB2000      C:\WINDOWS\system32\imagehlp.dll
Heap at VM Abort:
Heap
def new generation total 576K, used 132K [0x15050000, 0x150f0000, 0x15530000)
eden space 512K, 25% used [0x15050000, 0x15071250, 0x150d0000)
from space 64K, 0% used [0x150d0000, 0x150d0000, 0x150e0000)
to space 64K, 0% used [0x150e0000, 0x150e0000, 0x150f0000)
tenured generation total 1408K, used 0K [0x15530000, 0x15690000, 0x19050000)
the space 1408K, 0% used [0x15530000, 0x15530000, 0x15530200, 0x15690000)
compacting perm gen total 4096K, used 964K [0x19050000, 0x19450000, 0x1d050000)
the space 4096K, 23% used [0x19050000, 0x191410e0, 0x19141200, 0x19450000)
Local Time = Wed Aug 25 21:06:44 2004
Elapsed Time = 0
# HotSpot Virtual Machine Error : EXCEPTION_ACCESS_VIOLATION
# Error ID : 4F530E43505002EF
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
# Java VM: Java HotSpot(TM) Client VM (1.4.2_03-b02 mixed mode)

You are right, I tried getting the java.lang.Class reference for the com.test.Tester by calling getClass() on com.test.Tester
And using this jclass reference for java.lang.Class, I tried getting the method ID of getFields and eventually the Field[]
Thanks for the help
I have some more questions.
Assumption - Using JNI, I got the fields array of com.test.Tester and I am iterating through the fields
1.Assuming that the Tester class had an Integer field say m_nIntVal, then once I get the jobject equivalent of this Field in C++.
Now I need to get the type of the field (I call the method java.lang.reflect.getType() from JNI)
This gives me a jclass reference to it's type i.e java.lang.Integer
2.I need to get the name of this type i.e I want to get the name of the type in a string as "java.lang.Integer"
For this, on the jclass reference of java.lang.Integer got in Step 1, I call getClass() from JNI (to get the java.lang.Class) and then getName()
Now, for calling getClass(), I need a temporary object reference corresponding to the jclass of java.lang.Integer, The problem is that Integer does not have a default constructor, so my call to create the jobject fails.
But, since I do not know that I am constructing an Integer (remember that is what I am trying to find out - getType), I cant pass any values to constructor
Now, how do I go about creating a jobject of Integer, without knowing that I am constructing that, as this does not have a default constructor without parameters
Also, I tried using AllocObject to get the jobject and then tried to get the method ID of getClass(). Even this failed
3. If the com.test.Tester class had a primitive "int" field, say m_nPrimitiveInt
for which java provides a Class representation, I am able to get the jclass reference to the type of m_nPrimitiveInt
Now, how do I get the name of the type as "int" in a string?
Forllowing a similar procedure like in Step 2 fails when I try to pass the jclass reference to the type of m_nPrimitiveInt to the GetMethodID
with the error FATAL ERROR in native method: JNI received a class argument that is not a class
Can you tell me what is the way out?
Thanks in advance,
Also, can I mail you with some doubts that I have? If its ok, please contact me at [email protected]

Code Sample: Easy RFC Lookup From XSLT Mappings Using a Java Helper Class

Hi everyone,
This is just a shameless plug for my article: <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/05a3d62e-0a01-0010-14bc-adc8efd4ee14">Easy RFC Lookup From XSLT Mappings Using a Java Helper Class</a>. I hope you're interested in reading it, and I welcome your comments in this thread.
Kind regards,
Thorsten

Hi Stefan. Thanks for your post. I have already done that. It still does not work. As a base for my java helper class I have usesd Thorstens code.
The problem is quite confusing. I will try to ouline both issues here.
First of all, when try to test from within the Operation Mapping, I always get a java error saying it cannot find the communication channel (it is there and working because I have tested it with the RFCLookup in graphical mapping). I have found a way to work around this, and that is to uncheck the "Use SAP XMLToolkit" checkbox --> switch to test tab, enter my ReceiverService in the parameter tab (header parameter) --> switch back to Definition tab, check the "Use SAP XMLToolkit" checkbox --> switch to Test tab and run the test. Then the XSLT and call to java helper class will work. Of course this is not really something you want to do all the time. Maybe there is a bug.
Secondly, it never works when I try to do it "live". I am using a file adapter to pick up one file, convert it and a file adapter to drop the converted file. I get the following error code in SXMB_MONI.
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>

<SAP:Error xmlns:SAP="http://sap.com/xi/XI/Message/30" xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:mustUnderstand="">
<SAP:Category>Application</SAP:Category>
<SAP:Code area="MAPPING">TRANSFORMER_CONF_EX</SAP:Code>
<SAP:P1>ATJ_Accounting2XML_Accounting.xsl</SAP:P1>
<SAP:P2>http://rd.accounting.logica.com</SAP:P2>
<SAP:P3>fd552c30-bad9-11dd-9761-c21dac1b818c</SAP:P3>
<SAP:P4>-1</SAP:P4>
<SAP:AdditionalText />
<SAP:Stack>TransformerConfigurationException triggered while loading XSLT mapping ATJ_Accounting2XML_Accounting.xsl; http://rd.accounting.logica.comfd552c30-bad9-11dd-9761-c21dac1b818c-1</SAP:Stack>
<SAP:Retry>M</SAP:Retry>
</SAP:Error>
Using an XSLT without a call to a java helper class, works just fine.
I am totally at a loss here. Any more input would be much appreciated.
/Patrik

Intermittent problem in Coldfusion 9, BlazeDS with Java Service class and CFCProxy

If that title doesn't scare you, you might be able to help.
I believe there is a bug in Coldfusion 9's version of CFCProxy.
Tech Stack:
Flex Application
BlazeDS (stock with CF9)
Java Service class (java-amf BlazeDS endpoint)
Coldfusion business tier, invoked by the Java Service class using CFCProxy
Tomcat 6 on Java 1.6
Linux or Windows servers, both exhibit same behavior
SQL Server database
Problem:
When Flex calls a Java service method through BlazeDS that invokes a Coldfusion CFC through CFCProxy, and the method called in the Coldfusion CFC includes a large query (10 fields, 1000+ records returned), we intermittently (1 out of ~5 times) receive the following exception:
java.lang.NullPointerException
    at coldfusion.runtime.NeoPageContext.popBody(NeoPageContext.java:1925)
    at coldfusion.filter.SilentFilter.invoke(SilentFilter.java:57)
    at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:405)
    at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:368)
    at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:55)
    at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:321)
    at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:220)
    at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:491)
    at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:437)
    at coldfusion.cfc.CFCProxyFilter.invoke(CFCProxyFilter.java:56)
    at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:381)
    at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:2 8)
    at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
    at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
    at coldfusion.cfc.CFCProxy.doInvoke(CFCProxy.java:281)
    at coldfusion.cfc.CFCProxy.invoke(CFCProxy.java:193)
    at com.lampo.mapping.service.MapToolWebService.makeCfcProxyCall(MapToolWebService.java:1326)
    at com.lampo.mapping.service.MapToolWebService.getTerritoryList(MapToolWebService.java:609)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at flex.messaging.services.remoting.adapters.JavaAdapter.invoke(JavaAdapter.java:418)
    at flex.messaging.services.RemotingService.serviceMessage(RemotingService.java:183)
    at flex.messaging.MessageBroker.routeMessageToService(MessageBroker.java:1400)
    at flex.messaging.endpoints.AbstractEndpoint.serviceMessage(AbstractEndpoint.java:1005)
    at flex.messaging.endpoints.amf.MessageBrokerFilter.invoke(MessageBrokerFilter.java:103)
    at flex.messaging.endpoints.amf.LegacyFilter.invoke(LegacyFilter.java:158)
    at flex.messaging.endpoints.amf.SessionFilter.invoke(SessionFilter.java:44)
    at flex.messaging.endpoints.amf.BatchProcessFilter.invoke(BatchProcessFilter.java:67)
    at flex.messaging.endpoints.amf.SerializationFilter.invoke(SerializationFilter.java:166)
    at flex.messaging.endpoints.BaseHTTPEndpoint.service(BaseHTTPEndpoint.java:291)
    at flex.messaging.MessageBrokerServlet.service(MessageBrokerServlet.java:353)
    at coldfusion.flex.ColdfusionMessageBrokerServlet.service(ColdfusionMessageBrokerServlet.jav a:114)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at coldfusion.filter.FlashRequestControlFilter.doFilter(FlashRequestControlFilter.java:71)
    at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j ava:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
    at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
    at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769)
    at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698)
    at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
    at java.lang.Thread.run(Thread.java:662)
Attempts to diagnose:
These things remove the problem:
CF8 works perfectly with the identical code, never fails.
Calling the same Coldfusion CFC method with the large query (10 fields, 1000+ records returned) from another CFC 100+ times never fails.
Using a Coldfusion service class (a "my-cfamf" BlazeDS endpoint) never fails. However, we need to use a Java service class because we are using ~40 Java value objects (VOs) that correspond to ~40 auto-generated Actionscript VOs. BlazeDS won't correctly deserialize the Actionscript VOs into the Java VOs with a Coldfusion service class.
If I replace the large query with a Sleep(5000) instead, it never fails.
These things don't remove the problem:
Using the latest Microsoft JDBC driver doesn't help.
Even if the Coldfusion method returns an empty resultset (i.e., just calls the query and doesn't do any other work or return anything), the call still fails intermittently.
If the Coldfusion CFC with the method in question is instantiated and stored in SERVER scope as a singleton across multiple requests with CFCProxy, doesn't help.
Different large (1000+ record queries) all fail in the same way.
Caching the query doesn't help
Changes in the datasource configuration doesn't help
Using the older version of BlazeDS doesn't help
With all of these tests, I believe it comes down to a problem in the combination between CFCProxy and large queries. There may be more to it, but that is what we've narrowed it down to.
Any insight would be very welcome.

Hi Frank
The page is ADF bound, I've added the page source and the adfc-config source below :
Page
<?xml version='1.0' encoding='UTF-8'?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.1"
          xmlns:f="http://java.sun.com/jsf/core"
          xmlns:h="http://java.sun.com/jsf/html"
          xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
<jsp:directive.page contentType="text/html;charset=UTF-8"/>
<f:view>
    <af:document id="d1">
      <af:form id="f1">
        <af:commandButton text="commandButton 1" id="cb1"
                          actionListener="#{test.testws}"/>
      </af:form>
    </af:document>
</f:view>
</jsp:root>adfc-config
<?xml version="1.0" encoding="windows-1252" ?>
<adfc-config xmlns="http://xmlns.oracle.com/adf/controller" version="1.2">
<view id="view1">
    <page>/view1.jspx</page>
</view>
<managed-bean id="__4">
    <managed-bean-name id="__3">test</managed-bean-name>
    <managed-bean-class id="__2">ch.mit.test.test</managed-bean-class>
    <managed-bean-scope id="__1">request</managed-bean-scope>
</managed-bean>
</adfc-config>It seems to be the same sort of problem as in Re: Error in ADF Web Service Connection
Regards
Paul

Problem in taking the control of my application in the test class

Hi,
I am calling an application(Login) from the test class. This test class tests for blank fields entered for the login application.
Once i get the login screen, my program is getting hanged, i mean its not executing the test case unless i press the cancel button in that login screen. Only when i press the cancel button,my test case is executing in the background & is successful.
Can anyone tell me why is this happening & is there a better way to handle this situation.
Thanks & Regards,
Vishal

Well here is the Test class that i have written,
* LoginScreenTest1
* Created on Mar 9, 2007 by vishal
package unittest.com.erp;
import junit.extensions.TestSetup;
import junit.extensions.jfcunit.*;
import junit.extensions.jfcunit.finder.*;
import junit.extensions.jfcunit.eventdata.*;
import junit.framework.Test;
import junit.framework.TestSuite;
import junit.textui.TestRunner;
import com.erp.client.swing.ClientLoginDialog;
import com.erp.client.swing.workspace.ClientWorkspaceFrame;
import com.erp.client.swing.workspace.data.LoginResults;
import javax.swing.*;
import junit.extensions.jfcunit.finder.Finder;
import java.awt.Window;
import java.awt.Robot;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.util.List;
import java.util.ArrayList;
* MISSING_JAVADOC Vishal Class LoginScreenTest1 description.
* @author Vishal
public class LoginScreenTest1
    extends JFCTestCase {
private ClientLoginDialog loginScreen ;
private static JFCTestHelper s_helper = null;
private LoginResults lr;
public LoginScreenTest1(String name) {
    super(name);
    s_helper = new JFCTestHelper();
    System.out.println("Calling Login dialog");
    loginScreen = ClientLoginDialog.login(new JFrame(),true); // Returns the login dialog
    loginScreen.setVisible(true); // Its getting hanged here,only when i press the cancel button my test case gets executed
public static Test suite() {
    System.out.println("I am in Suite");
    TestSuite suite = new TestSuite(LoginScreenTest1.class);
    return suite;
public void testUserAndPasswordEmpty() {
    JDialog dialog;
    System.out.println("In Test case ");
    JTextField userNameField = (JTextField)s_helper.findNamedComponent("LoginTextField",loginScreen, 0);
    JTextField passwordField = (JTextField)s_helper.findNamedComponent("PasswordField",loginScreen, 0);
    JButton CancelButton = (JButton)s_helper.findNamedComponent("Cancelbutton",loginScreen, 0);
    userNameField.setText("");
    passwordField.setText("");
    JButton LoginButton = (JButton)s_helper.findNamedComponent("Loginbutton",loginScreen, 0);
    System.out.println("Clicking Login button");
    LoginButton.doClick();
    System.out.println("Login button clicked");
public static final void main(String[] args)
    junit.textui.TestRunner.run(suite());
     try
        Thread.sleep(1000000);
     catch (Exception e)
}Message was edited by:
vishal_vj

Best practice for creating test classes

I am quite new to java using NetBeans 6.1 with JDK 1.6 and for some of the functions I created I want to write test classes to run automated tests to check consistence when I do some changes.
I read something about this topic getting confused about different approaches depending on the jdk version / netbeans version used and however found very different looking examples on the net.
Now I am very confused how to continue. Any hint would be helpful,
Thanks,
Martin.

georgemc wrote:
Can you expand on that? I suspect you're talking about JUnit < 4 vs JUnit 4, since JUnit 4 can only work with Java versions from 5 onwards.Yes, I am talking about JUnit - On NetBeans the default was 3.8.2 if I remember right and I installed 4.1.
The problem starts where to start; creating a JUnit Test, Test for Existing Class or Test Suite.
Trying to create tests for an existing class it shows me something like:
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class TestsTest {
    public TestsTest() {
    @Before
    public void setUp() {
    @After
    public void tearDown() {
}using 4.1
but
import junit.framework.TestCase;
public class TestsTest extends TestCase {
    public TestsTest(String testName) {
        super(testName);
    protected void setUp() throws Exception {
        super.setUp();
    protected void tearDown() throws Exception {
        super.tearDown();
}using 3.8.2
so first the versions seem to work completely different. The older version seems more understandable (for me as a beginner). Is it "save/stable" to use the already the newer JUnit? How is the support in NetBeans with the newer version - I mean do I have to expect problems not going with the older one?

How to create test classes with JUnit?

Hello,
I need to test my classes with JUnit. My editor is BlueJ.
This is my class:
package model;
import java.util.*;
public class Category
    private String name;
    private List<Appointment> appointments;
    private List<ToDo> toDos;
    public Category(String name)
        this.name = name;
        appointments = new ArrayList<Appointment>();
        toDos = new ArrayList<ToDo>();
    public String getName()
        return this.name;
    public void setName(String newName)
        this.name = newName;
    public void addAppointment(Appointment a)
        appointments.add(a);
    public void removeAppointment(Appointment a)
        appointments.remove(a);
    public void addToDo(ToDo t)
        toDos.add(t);
    public void removeToDo(ToDo t)
        toDos.remove(t);
    public List<Appointment> getAppointments()
        return appointments;
    public List<ToDo> getToDos()
        return toDos;
}This is my JUnit test class code so far:
package model;
import java.util.*;
* The test class CategoryTest.
* @author (your name)
* @version (a version number or a date)
public class CategoryTest extends junit.framework.TestCase
   private Category cat;
    protected void setUp()
        cat = new Category("Kategori");
    public void testGetAndSetName()
        assertTrue(cat.getName().equals("Kategori"));
        cat.setName("Kategori 2");
        assertTrue(cat.getName().equals("Kategori 2"));
        assertFalse(cat.getName().equals("Kategori"));
}Any hint would be appreicted.
Best regards,
Turtle

jonasse wrote:
Hehe:)
This is my code:
   private Category cate;
protected void setUp() {
text = new Appointment("Aftale",TimeStampGenerator.generate(1, 1, 2009), TimeStampGenerator.generate(1, 2, 2009));
cate = new Category("Aftaler");
public void testSetAndGetText() {
assertTrue(text.getText().equals("Aftale"));
text.setText("Andre aftaler");
assertTrue(text.getText().equals("Andre aftaler"));
public void testSetAndGetCategory()
assertTrue(text.getText().equals("Aftale"));
text.setText("Andre Aftaler");
assertFalse(text.getText().equals("Aftale"));
     public void testGetAndSetStartTime() {
         assertTrue(text.getStartTime().equals(TimeStampGenerator.generate(1,2,2009)));
         text.setStartTime(TimeStampGenerator.generate(1,2,2008));
         assertTrue(text.getStartTime().equals(TimeStampGenerator.generate(1,2,2008)));
         assertFalse(text.getStartTime().equals(TimeStampGenerator.generate(1,2,2009)));
}The last method compiles, but I get a failure when I run the test. Says no exception message???
Thanks in advance,
JonasSo this is where TDD kicks in. Your mission - should you choose to become test-infected - is to write tests that fail, preferably even don't compile, and then write the code that makes them pass. Compilation is no guarantee the thing will work. In all honesty, that test is probably too busy. Ideally, each test case has exactly one assert in it. That way, you can know instantly what's gone wrong. If you reply "but my code can't be tested like that" it's probably time to refactor it so that it can

Can anyone help me with this test class

hiya im new to java im trying to make this test class but i comes up with this error
EmployeeTestClass.java:14: cannot resolve symbol
symbol : constructor Employee (java.lang.String,java.lang.String,java.lang.String)
location: class Employee
     Employee Test = new Employee ("John", "Henry", "Monthly");
                            ^here is my whole code to the test class, please bear in mind im really new to java
public class EmployeeTestClass
   public static void main(String[] args)
     System.out.println ("Please type the employee name:");
          String fName = EasyIn.getString();
     System.out.println ("Please type the employee secound name :");
          String sName = EasyIn.getString();
     System.out.println ("Please type the employee eReference :");
          String eReference = EasyIn.getString();
     System.out.println ("Please type the employee annualSalary :");
          String annualSalary = EasyIn.getString();
     Employee Test = new Employee ("John", "Henry", "Monthly");
   Test.showDetails();
}

// your code:
Employee Test = new Employee ("John", "Henry",
"Monthly");What you need to do is put the
variables fName, sName etc. in there instead. And you
declared the variable annualSalary as a
String, which should be a double.hiya i tried the above and now my code code like this
public class EmployeeTestClass
   public static void main(String[] args)
     System.out.println ("Please type the employee name:");
          String fName = EasyIn.getString();
     System.out.println ("Please type the employee secound name :");
          String sName = EasyIn.getString();
     System.out.println ("Please type the employee eReference :");
          String eReference = EasyIn.getString();
System.out.println ("Please type the employee salary :");
          double annualSalary = EasyIn.getString();
Employee Test = new Employee ("fName", "sName", "annualSalary");
   Test.showDetails();
      }but wheni try to complie it it comes up with these error please help
EmployeeTestClass.java:12: incompatible types
found   : java.lang.String
required: double
double annualSalary = EasyIn.getString();
                                                          ^
EmployeeTestClass.java:15: cannot resolve symbol
symbol : constructor Employee (java.lang.String,java.lang.String,java.lang.String)
location: class Employee
Employee Test = new Employee ("fName", "sName", "annualSalary");
                     ^
2 errors

Runtime.getRuntime().exec(java test)

Hi,
As part of a thesis for college, I am trying to execute a test java program. The program executes okay and I can read the results okay.
Sample code.
process = Runtime.getRuntime().exec("java test");
InputStream iOutStream = process.getInputStream();
InputStream ErrorStream = process.getErrorStream();
However, I need to be able to execute a progam that reads a parameter from the screen. I tried to pass a parameter file but it doesn't work.
process = Runtime.getRuntime().exec("java test <input.txt");
I also tried just passing the parameters as a string array but it doesn't work either.
process = Runtime.getRuntime().exec("java test 2, 2");
Is there any other way that I can get the process to accept parameters?
My deadline is looming so any help would be greatly appreciated.
Thanks
Eleanor
[email protected]

I think you are waiting when reading the output before you write to the stream until it becomes NULL or -1. That will never finish if the program you execute is expecting input!
See a working example:
This class does nothing than print a line on the console, then waits for a line of input, then prints the result again on the console. This is the class you'd execute from some other java code:
import java.io.*;
public class Input {
    public static void main(String args[]) {
        try {
            System.out.println("Before input");
            BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
            String s=r.readLine();
            System.out.println("Got line : " + s);
        } catch(Exception e) {
                System.out.println(e.getMessage());
}The following 'controls' the input-test class above, so compile the classes and execute the following one:
import java.io.*;
import java.lang.*;
public class test {
    public static void main(String args[]) {
        try {
            Process p = Runtime.getRuntime().exec("java Input");
            BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()));
            BufferedWriter w = new BufferedWriter(new OutputStreamWriter(p.getOutputStream()));
            String s=r.readLine(); // You cannot read until NULL because that will not happen before you have 'input' something
            System.out.println("Got: " + s);
            w.write("cvxcvxcvx\n\r");
            w.flush();
            System.out.println("waiting result:");
            while( (s=r.readLine()) != null) { // read until finished.
                System.out.println("after : " + s);
        } catch(Exception e) {
                System.out.println(e.getMessage());
}

I need the Java IDoc Class Library

Hi,
I'm desperately looking for the Java IDoc Class Library. What for? I'm doing a project for university and I have a test version running on my own computer (Mini WAS 6.20 with the FlightBooking example installed). The SAP Service Marketplace is for registered customers only. Since I only have a test environment (mentioned above) I can't register there and download it.
Could anyone please send me this library by mail, to [email protected] Since I don't know how big this package is: my mail provider has a 15MB/per single mail limit. If biiger, please split.
Yes, I'm asking for much. But I'm pretty desperate and I have to get going, since I'm running out of time.
If there are other ways to get this library, please tell.
Thanks
Jonny

Hi Johannes
The SAP Java IDoc Class Library consists of two parts, the SAP Java Base IDoc Class Library and the SAP Java Connector IDoc Class Library. The SAP Java Base IDoc Class Library provides an API which helps navigating, reading, filling, and modifying IDocs. This base package is middleware independent. Creating, sending, and receiving IDocs is middleware dependent. To make use of the SAP Java Base IDoc Class Library you will need an additional middleware dependent add-on package implementing the defined interfaces like the SAP Java Connector IDoc Class Library.
The SAP JCo can be downloaded from the
https://websmp101.sap-ag.de/~form/sapnet?_SHORTKEY=01100035870000463649
of SAP JCo. The SAP JCo package includes the software as well as documentation, tutorial, and examples. The SAP Java IDoc Class Library can be downloaded from the same URL, and then follow the link to SAP Java IDoc Class Library. The SAP Java IDoc Class Library packages include the software as well as documentation.

Testing classes without a main()...

i was wondering if its possible to run a test ona class without a main...my prof isnt letting us use "static" methods because it obviously defeats the purpose of OOD. So now im left wondering how the hell to get my test classes running...here is an example of one..i made the "main" method here static and it worked fine...but now how do i go about making it work non static?
import java.util.*;
import java.io.*;
public class BankAccountTest
public void main(String[] args)
     String testName = "Testy McTesterson";
     BankAccount test = new BankAccount();
     test.setBalance(100.00);
     System.out.println(test.getBalance());
     test.setName(testName);
     System.out.println(test.getName());
thanks in advance,
Cuda
Edited by: 74Cuda on Mar 8, 2008 7:28 PM

How the Java virtual machine "gets started" is covered in the JVM specification 5.2 "The Java virtual machine starts up by creating an initial class, which is specified in an implementation-dependent manner, using the bootstrap class loader (�5.3.1). The Java virtual machine then links the initial class, initializes it, and invokes its public class method void main(String[])". Note that it's a class - ie static - method that kicks the whole thing off. And it really has to be as no code has been run, and no objects created at this point.
http://java.sun.com/docs/books/jvms/second_edition/html/ConstantPool.doc.html#51579
Magic involves suspending the everyday laws of nature and logic to effect the impossible. Stage magic merely hides these laws to create a pleasant illusion.
I suspect that IDEs' lack of an apparent static main() method when performing unit testing is just stage magic.
For instance junit.swingui.TestRunner includes this method:
public static void main(String[] args) {
    new TestRunner().start(args);
}

NullPointerException at java.lang.Class.forNameImpl(Native Method)

Hi All,
We installed an enterprise application using Websphere Application Server 6.1 and we use Java 1.5.0_18. We encountered the following error while testing the application:
[6/07/09 18:32:56:825 EST] 0000002b SystemErr R java.lang.NullPointerException
[6/07/09 18:32:56:825 EST] 0000002b SystemErr R at java.lang.Class.forNameImpl(Native Method)
[6/07/09 18:32:56:825 EST] 0000002b SystemErr R at java.lang.Class.forName(Class.java:130)
<the remaining part of the stack trace has been removed as it contains the names of our application specific classes>
Could you please let me know the root cause of this error?
Thank you.
Regards,
Venkatesh

I would double- and triple-check that. A null classname string is almost certainly the cause here.

Java test class

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