VM exits without throwing any exception if it can't reserve enough heap.

Hi,
I have spent the whole day searching for a solution to this problem or atleast to get some clue in any of the forums but still not able to :(
I have a simple application just as simple as HelloWorld program that prints some message,say "Hi There", using a JOptionPane. I have created the .exe using InstallAnywhere and have specified the parameters to reserve heap as follows:
-Xms300M -Xmx2048M -Xmn80MUnfortunately, I have a total of only 1GB RAM on my system and since I have specified -Xmx2048, the application closes immediately without even throwing OutOfMemoryException.
When I tried launching the same application using command prompt specifying the same parameters to reserve heap (java -Xms300M -Xmx2048M -Xmn80M -cp . ClassName), I could see the following error:
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
I can see the above error message only when I launch it from command prompt and not when I launch it from InstallAnywhere's .exe.
However, I can see the above error message in the latter case if I keep the Ctrl key hold down while launching the application. If I dont hold down the Ctrl key, the application console simply appears for a moment and closes before user can see what exactly is happening.
Is there any way of flagging some error message to the user to indicate that VM couldn't reserve the specified heap size since it's not presently available before closing?
Any help in this regard would be highly appreciated.
Thanks,
Umesh

jschell wrote:
The most curios is if I reinstall the system I can allocate a heap of 2048m to the next crash !!!Presuming that you are not mis-reporting or mis-evaluating something...
linux-x86 On Linux virtual memory relies on file space that exists on the harddrive which is dedicated to that purpose.
The file space is just like any other file space.
If that file space fills up, for any reason, then the OS will appear to run out of memory for applications.
The one time this happened to me the virtual space was mapped such that regular files were using the space. Specifically my log files. So as the log files grew the application memory decreased.And if the crashed JVM generates a core file...

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LookupXRef not throwing any exception

Hi All,
We are using ESB Cross referencing out of box functionality provided with 10.1.3.3 SOA Suite.We have a case where we need to have some busineess logic when the value we are trying to look up in the Cross Ref table doesnot exists , in that case we tried to use needAnException(set to true()) field in the lookupXRef function inside the transformation.However its not throwing any exception in the BPEL Process.Instead it is avoiding other fields in getting populated underneath it in that complex type.As a result we are losing important business data inside the BPEL Process.Same is the case for PopulateXRefRow function as well while we are trying to insert a duplicate value into the Cross referencing table from BPEL Process.
We need an exception for the above two cases.Are there any work arounds for these.
We are in an urgent need of it.Can any one help us?
Regards,
Venkat.

hi,
after using XREFTOOL to create my cross referencing:
D:\productORACLE\10.1.3.1\SOA\Oracle_1\integration\esb\bin>xreftool.bat -shell
listTablesTotal number of xref tables: "1"
No. TableName
1. MONREF
listColumns MONREFTotal number of columns for xref table "MONREF" : "2"
No. ColumnName
1. SAP
2. SIEBEL
>
i try to use (after a reboot of soa suite), xpath function xref:populateXRefRow inside a assign task of my bpel 10.1.3.3.
i have the following exception :
Message handle error.
An exception occurred while attempting to process the message "com.collaxa.cube.engine.dispatch.message.invoke.InvokeInstanceMessage"; the exception is: XPath expression failed to execute.
Error while processing xpath expression, the expression is "xref:populateXRefRow('monref','sap','123','siebel','2','ADD')", the reason is FOTY0001: type error.
Please verify the xpath query.
ORABPEL-05002
Message handle error.
An exception occurred while attempting to process the message "com.collaxa.cube.engine.dispatch.message.invoke.InvokeInstanceMessage"; the exception is: XPath expression failed to execute.
Error while processing xpath expression, the expression is "xref:populateXRefRow('monref','sap','123','siebel','2','ADD')", the reason is FOTY0001: type error.
Please verify the xpath query.
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(DispatchHelper.java:171)
at com.collaxa.cube.engine.dispatch.BaseScheduledWorker.process(BaseScheduledWorker.java:70)
at com.collaxa.cube.engine.ejb.impl.WorkerBean.onMessage(WorkerBean.java:86)
at sun.reflect.GeneratedMethodAccessor48.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.evermind.server.ejb.interceptor.joinpoint.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:35)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
Is there a solution or did i miss something ??
i try to use the same xpath function inside a ESB project (xslt transformation)
<xsl:value-of select='xref:populateXRefRow("MONREF","SAP",/tns:name,"SIEBEL",ora:generateGUID(),"ADD")'/>
and i've got the error message :
XML-22016: (Error) Extension function namespace should start with 'http://www.oracle.com/XSL/Transform/java/'.

Can we Install SQL Server Express with Advanced Services x 64 bit for our testing purpose without procuring any license? Also can we use it for commercial use if we are neglect risk sof using it on Production?

Can we Install SQL Server Express with Advanced Services x 64 bit for our testing purpose without procuring any license? Also can we use it for commercial/Production
use if we are agree to take risk of using it on Production?

Hi,
Yes you can, but you should be aware of the limitations of MS SQL Express version.
1. 1GB RAM
2. 10 GB database size per database excluding log file (SQL 2008 R2 and above)
3.Job Scheduling service is not available with SQL Server Express.
4.Data import and export feature is not available with SQL Server Express.
5.Limitation on number of CPU
Refer following article for features supported by different editions of MS SQL Server.
Features Supported by the Editions of SQL Server 2012
Please mark solved if I've answered your question, vote for it as helpful to help other users find a solution quicker
Praveen Dsa | MCITP - Database Administrator 2008 |
My Blog | My Page

Persist does not throw any exception in a JUnit test

I am implementing a JUnit test using Toplink as JPA provider. I must be missing something because I try to persist two times the same entity and no exception is thrown. Neither PersistenceException nor any other type of exception. The code cannot be easier:
@Test
public void testAddExistingTeam() throws Exception {
Team team = new Team("team2");
try{
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("fofo");
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
em.persist(team);
em.persist(team);
em.getTransaction().commit();
em.close();
catch(Exception e){
e.printStackTrace();
Notice the two em.persist(team).
This code does not seem to either enter the catch block or produce any sort of exception. On the other hand, I have checked that after the first
em.persist(team); the team is really managed.
The relevant parts of the Team class definition follow:
@Entity
@Table (name ="TEAM")
public class Team implements Serializable {
@Id
@Column (name="NAME")
private String name;
@ManyToOne
@JoinColumn (name="CLUB_NAME", referencedColumnName="NAME")
private Club club;
private Category category;
private String email;
@ManyToMany(mappedBy="teams")
private List<Competition> competitions;
public Team (String name){
this.name = name;
this.club = null;
this.competitions = new ArrayList<Competition>();
....getters/setters....and more constructors.
I am really puzzled by this issue. Somebody could help??? I would be really grateful!!!
Josepma

This is expected behavior as persist is a no-op if called on a managed entity (other than to cascade over relationships marked with cascade.Persist), and the first persist call makes the passed in team entity managed.
Try calling em.flush(); and em.clear(); between the persist calls to get an exception.
The first flush will ensure the team is inserted in the database, while clear will detach it so that the second persist call will try to insert the team. JPA providers are not required to throw the entityExistsException on persist - it can be delayed until the transaction is flushed or committed, so you are likely to get a PersistenceException from the commit instead of EntityExistsException from persist.
Best Regards,
Chris

Dbms_job.submit - job is restarting but - not throwing any exceptions

We have a job that is a simple loop that looks for (wakes up by) looking for messages coming in using DBMS_PIPE.
The job has been restarting arbitrarily but - we're not seeing messages generated via any of the associated exception handlers.
No idea why it's restarting when it fails.... currently - I'm just looking for a way to have the dbms_job.submit call NOT automatically restart if it has issues.
Currently just calling as such:
DBMS_JOB.submit(jobno, 'pkg_package.listen;');
Running on 10.2.0.4.0
Any insight is appreciated.
Is there a way to prevent it from automatically restarting and - is there something I should be looking for specifically around dbms_job when it comes to the exception handling in the packages/procedures it's running??
Thanks.

We generate a log record in a table using an autonomous procedure when an exception is raised.
Where I'm seeing the log records stating an issue with the job - I'm also seeing the tracefile / alerts being generated.
When the job starts - we log a record stating it's started....
In many instances - I'm seeing it log a start but - there's no corresponding trace file (i.e. - it wasn't manually started - it was processing and - then - without exception 'died' - didn't generate an error but - just started up again).
I've no idea what's going on here. I've validated that everywhere through the underlying package the job is running that the exceptions are being logged. Yet - it's arbitrarily starting up again on some occassions (and - I can't seem to find any general commonality around when this is happening or - what would be causing it).
So - I'm thinking this is an issue with the DBMS_JOB or - something else funky going on....
As an FYI - This job is simply a loop that waits to receive a message on DBMS_PIPE that then fires off a package procedure when it receives the message.
In the interim - to alleviate data issues as a result of it processing the same data twice - I'm trying to prevent it from auto restarting... is there a way to do this?

Just got a new computer and I want to hook up my itouch and treat it just like i did with the last computer, without losing any data. What can I do?

Help me please! I'm a new college student trying to make my new computer just like the family computer, which has all of my itunes, ipod sync "station", and etc.How can I hook up my iTouch to this new computer and treat it the same as i did on the old?
P.S.-and just like everyone else, is there a way to do it without losing all my hard earned data?

Make sure you cpt the iPod backup file from the old compouter to the new one. That file is located here:
Mac: ~/Library/Application Support/MobileSync/Backup/
Windows XP: \Documents and Settings\(username)\Application Data\Apple Computer\MobileSync\Backup\
Windows Vista and Windows 7: \Users\(username)\AppData\Roaming\Apple Computer\MobileSync\Backup\
- after you move the other stuff to your new computer, connect the iPod to the new computer and restore the iPod from the backup you just added to the computer and then sync.

My beloved Ipod Classic 2009 has something wrong with sound - i have restored and removed almost everything but it just wont play - im lost without it, any know if it can be fixed?

At first the sound was just awful dead scratchy so I reset it and now it very occasionally plays a few seconds then dissappears I feel I have lost a friend and would dearly love someone who knows about such things to tell me if they can help - I ve done all the resetting restoring etc stuff already.

It seems you have already started the discussion about the same issue in other thread:
http://forums.computers.toshiba-europe.com/forums//message.jspa?messageID=198714
Please dont create several threads about one and the same theme and follow the first thread to avoid misunderstandings!

NCo throws an Exception calling BAPI_MATERIAL_SAVEDATA?

I've been successful in calling BAPIs from NCo (BAPI_CHARACT_CREATE, BAPI_CLASS_CREATE, BAPI_VENDOR_FIND, BAPI_VENDOR_GETDETAIL)....
However when calling BAPI_MATERIAL_SAVEDATA, I always get the following Exception being thrown:
Index was outside the bounds of the array.
   at SAP.Connector.Rfc.RfcStructureUtil.ToRfcStructure(Object obj, Byte[] dest, Type t, Encoding encoding, Boolean isUnicode, PropertyInfo[] propinfos, RfcStructInfo structInfo)
   at SAP.Connector.Rfc.RfcStructureUtil.GetITabFromList(SAPConnection conn, Object list, Type t, RfcStructInfo structInfo, Int32 itab)
   at SAP.Connector.Rfc.RfcClient.PrepareClientParameters(Type classType, MethodInfo m, Boolean isTQRfc, Object[] MethodParamsIn, RFC_PARAMETER[]& paramsIn, RFC_PARAMETER[]& paramsOut, RFC_TABLE[]& tables, ParameterMap[]& paramMaps)
   at SAP.Connector.Rfc.RfcClient.RfcInvoke(SAPClient proxy, String method, Object[] methodParamsIn)
   at SAP.Connector.SAPClient.SAPInvoke(String method, Object[] methodParamsIn)
   at SAP_MM_Test.SAPProxy1.Bapi_Material_Savedata(BAPI_MARA Clientdata, BAPI_MARAX Clientdatax, String Flag_Cad_Call, String Flag_Online, BAPI_MPOP Forecastparameters, BAPI_MPOPX Forecastparametersx, BAPIMATHEAD Headdata, String No_Dequeue, String No_Rollback_Work, BAPI_MPGD Planningdata, BAPI_MPGDX Planningdatax, BAPI_MARC Plantdata, BAPI_MARCX Plantdatax, BAPI_MVKE Salesdata, BAPI_MVKEX Salesdatax, BAPI_MARD Storagelocationdata, BAPI_MARDX Storagelocationdatax, BAPI_MLGT Storagetypedata, BAPI_MLGTX Storagetypedatax, BAPI_MBEW Valuationdata, BAPI_MBEWX Valuationdatax, BAPI_MLGN Warehousenumberdata, BAPI_MLGNX Warehousenumberdatax, BAPIRET2& Return0, BAPIPAREXTable& Extensionin, BAPIPAREXXTable& Extensioninx, BAPI_MEANTable& Internationalartnos, BAPI_MAKTTable& Materialdescription, BAPI_MLTXTable& Materiallongtext, BAPI_MFHMTable& Prtdata, BAPI_MFHMXTable& Prtdatax, BAPI_MATRETURN2Table& Returnmessages, BAPI_MLANTable& Taxclassifications, BAPI_MARMTable& Unitsofmeasure, BAPI_MARMXTable& Unitsofmeasurex) in C:\Dev\SAP_MM_Test\SAPProxy1.vb:line 220
   at SAP_MM_Test.Form1.Button1_Click(Object sender, EventArgs e) in C:\Dev\SAP_MM_Test\Form1.vb:line 114"     String
I even tried calling the Method with all parameters set to Nothing and also get the same error. I tested some of the other BAPI I listed will all Nothing parameters and it does not throw any exceptions. Almost seems as if the Proxy generated classes did not get created properly or something?
Has anyone else successfully called BAPI_MATERIAL_SAVEDATA from NCo 2.0?
PS...I was successful in calling the BAPI from SE37 with the exact same data, therefore I know I have all the mandatory parameters specified (HeadData, ClientData, ClientDatax...etc)
Anything obvious in the following code?:
=======================================
     ' Connection String
     Dim cs As String = "ASHOST=10.83.180.239 SYSNR=10 CLIENT=110 USER=CMCHUG2 PASSWD=********"
     ' construct the proxy with connection string
     Dim proxy As New SAPProxy1(cs)
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     Dim HeadData As New BAPIMATHEAD
     HeadData.Material = "000000000000000754"            ' Material NUmber (PAD to 18)
     HeadData.Ind_Sector = "U"                           ' Industry Sector
     HeadData.Matl_Type = "ERSA"                         ' Material Type (ERSA=Space Parts / HERS=Manufacturer Part)
     HeadData.Basic_View = "X"                           ' Need at least 1 view
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     Dim ClientData As New BAPI_MARA
     ClientData.Matl_Group = "01"                        ' Material Group
     ClientData.Base_Uom = "EA"                          ' Base Unit of Measure
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     ClientDataX.Matl_Group = "X"
     ClientDataX.Base_Uom = "X"
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     Dim ShortDesc As New BAPI_MAKTTable
     Dim sDescr As New BAPI_MAKT
     sDescr.Langu = "E"                                  ' Language
     sDescr.Matl_Desc = "Short Desc Test"               ' Short Description (Max 40)
     ShortDesc.Add(sDescr)
     Dim tblRet As New BAPIRET2
     Dim tblRetMsg As New BAPI_MATRETURN2Table
     proxy.Bapi_Material_Savedata(ClientData, ClientDataX, Nothing, Nothing, Nothing, Nothing, HeadData, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, Nothing, tblRet, Nothing, Nothing, Nothing, ShortDesc, Nothing, Nothing, Nothing, tblRetMsg, Nothing, Nothing, Nothing)
Exception Thrown Here!!!

Reiner,
Tried what you suggested, still get the same results. This the 3rd development system I try this from. In all cases I generated proxies via drop and drop of the SaveData Method under StandardMaterial (BOR). Since it was just generated the MetaData should be up to date?, good suggestion thought, I could see where that might be a problem going against different backends.
My lastest attempt (I am quickly running out of ideas), was to generate a Standalone Proxy containing the SaveData method. Same Results :{
I was able to create Standalone Proxies for the other Business Objects I'm using (Characteristics, Class..etc) without a hitch. (Except for "Class", complaining about the Class name generated (Public Class Class...so I renamed to sapClass). Using the Standalone Proxy Class I might try from Visual Studio 2005 to see if I get the same results.
Also encountered another problem when trying to Add the whole BOR object StandardMaterial to the Proxy (so I would have access to a few of the Methods....this failed with some Java out of memory error....I would have to attempt this again to capture the exact error....when I get time I'll put that in another post).

PrintWriter methods throw NO exceptions!

Hi,
According to the PrintWriter javadoc:
"Methods in this class never throw I/O exceptions. The client may inquire as to whether any errors have occurred by invoking checkError()."
I think this sounds strange in Java language, since it has the Exceptions mechanism...does any one know the reason why it is like this?
Regards

With unchecked exception, it will still terminate my function mid-way!
Here is a concrete example:
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I can write method1 and method2 without worrying about it.
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Any exception makes OC4J stop to work

after throwing any exception,
OC4J stops to work,
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if I got a bug in my web application,
....?

borber wrote:
Hi,
I have Windows7, the last version of the Skype.
after connection any call (video and audio, any contact) in a few seconds I'm getting message "Skype stoped to work properly. Windows close the programm", and Skype is getting closed.
I was trying to deinstall Skype and download and install it again, but all the same.
Thank you everyone for the help.
Hi! the thread which link is pasted below is a compilation of the suggestions and procedures that fixed Skype related problems in many cases. I hope that the suggestions there would also help resolve the issues in your case.
Skype Problems Troubleshooting Procedures (Windows)
CONTACT SKYPE CUSTOMER SERVICE | HOW TO RECORD SKYPE VIDEO CALLS | HOW TO HANDLE SUPICIOUS CALLS AND MESSAGES | WINDOWS PROBLEMS TROUBLESHOOTING | SKYPE DOWNLOAD LINKS
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Can I change the theme without remove any information

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how can I change it ?

In the theme chooser, click on the theme you want to change to, be aware the new theme could reposition or change the content, just try it and see..

Can I reserve inventory without create any sales order?

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I would like to reserve 1000 kg for wholesalers use without create any sales order?
Can I do that?
Best Regards,
Amy

Hi,
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Hi jinchanglin,
Have you ever tried with profiling the app while debug the app,
Analyze app performance and
Analyze memory usage (VB, C#, C++)
Is it possible that CPU or memory usage reach to the limitation as you need execute the same code with nearly 150,000 times. Also you mentioned, 5000 times is ok, personally I think the code is fine, but you may need to care more about performance behavior.
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--James
<THE CONTENT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS OR IMPLIED>
Thanks
MSDN Community Support
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Reader XI installation exits without any error on XP

Hello,
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Any ideas what might be going on?

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VM exits without throwing any exception if it can't reserve enough heap.

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