Java.vm.version property -- Time critical issue!

Yesterday I upgraded my Java runtime environment in response to a popup that automatically appeared. Today my code doesn't run because the system property java.vm.version is screwed up.
My program checks to see that the user's version of Java is at least at version 5. To do this, I call System.getProperty("java.vm.version") and examine the third character. Normally the value of the property is something like "1.6.0_03-b05", which indicates the JRE is at version 6. Today, the value returned is "10.0-b19", which is meaningless to me, and causes my program to exit.
Looking at all the system properties, here are some relevant ones:
java.vm.version=10.0-b19
java.runtime.version=1.6.0_05-b13
java.specification.version=1.6
java.vm.specification.version=1.0
java.version=1.6.0_05Is there a bug somewhere that is causing java.vm.version to return a weird value?
Am I simply querying the wrong property? Would it be more appropriate to query one of the other properties?
I've got about 50 users to support. If (or rather when) any of them upgrade their JRE, their copies will simply crash. I need to be proactive and address this problem before it gets critical. And if there's a bug in the release, I'm probably not the only program developer who will be caught by it.
Awaiting a prompt response...
Jerry Agin

This one caught me too. Guess I'll switch properties. I can't find any explanation of what happened to this property in Java 6.

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Please send me the *Real time critical issues in Implementation and Development Projects*
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Hello Doug,
Thank you for contacting Callaway uPro Technical Support.
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Sorry, I have no idea what you mean by '''"The Java plugin has created a time unfriendly issue with my e-mail account, I can not open or send any e-mail without using this plugin,"'''.
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Edited by: delsart on Feb 18, 2009 5:11 PM

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Screenshot of Error in Inbox:
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Hi,
Check whether document in the link below is of any use for you..
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Adobe Community Expert
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http://www.fordwebs.com
"FL_Chong" <[email protected]> wrote in
message news:epooru$9ku$[email protected]..
> Heard that majority of java base applications will be
affected, so I am kinda
> wonder if coldfusion 7 MX will be affected. Anyone knows
whether my server or
> agent will execute task or job late or early by 1 hour?
I am in Malaysia, will
> my server be affected? thanks
>

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Hi,
We are using "Stateless" mode in our BC4J project. Our View form done with Datawebbeans, Edit Form and Submit Edit Form done with Datatags. We are using Jdeveloper 3.2.
In multi-user environment, we are noticing that if two users open the same record at the same time, for editing, it is allowing both the users to edit the same record. We expect the second user to get an error message something like "Row Has been Changed - Re-query to see the change". But its not the case.
This is a very critical issue for us and any help from JDEV team is appreciated.
Thank you in advance
Virinchi
null

The following information from Jdeveloper 3.1 Help (User Guides - Developing Business Components - Understanding Transactions - About Application Modules and Transactions) might be useful:
Client applications connect to databases and manage transactions by using the oracle.jbo.Transaction interface. Some useful methods of the Transaction interface with regard to Application Modules are:
commit - Commit the transaction; saves all changes to the database. If the database connection is established, the transaction is implicitly started.
connect - Attempt to establish a connection to the given database URL.
disconnect - Disconnect the server from the database.
**getLockingMode** - Get the preferred locking mode for this transaction. Currently the locking mode defaults to LOCK_PESSIMISTIC.
rollback - Rollback the transaction; discard all changes.
setLockingMode - Set the preferred locking mode for this transaction. Changing the locking mode affects only subsequent locks that are placed
If you have an Application Module and DataSource defined with Data Tags like this:
<%@ taglib uri="/webapp/DataTags.tld" prefix="jbo" %>
<jbo:ApplicationModule configname="dbproject3.Dbproject3Module.Dbproject3ModuleLocal"
id="Dbproject3Module" username="db" password="project" />
<jbo:DataSource id="ds" appid="Dbproject3Module" viewobject="BlChangesView" >
</jbo:DataSource>
Then you can access the Application Module, using Java Code like this:
jsp:useBean class="oracle.jbo.html.databeans.RowsetNavigator" id="rsn" scope="page" >
<%
rsn.setReleaseApplicationResources(false);
rsn.initialize(pageContext,"JSPFrame_dbproject3_Dbproject3Module.BlChangesView");
oracle.jbo.Row row = rsn.getRowSet().last();
oracle.jbo.domain.Number num = ((oracle.jbo.domain.Number)row.getAttribute("ChangeCode"));
ccode = num.intValue();
out.println("<h2>Change Code, by webbean is: " + ccode);
%>
</jsp:useBean>
Use:
ApplicationModule am =rsn.getRowSet().getApplicationModule()
then get the transacton with
am.getTransaction()
Hope this helps.
null

Unable to launch the application after upgrading Java to version 1.6.0_26

After upgrading Java to version 1.6.0_26 in Windows XP my web start throwing Exception. It works fine in Ubuntu with Java 1.6.0_24 and in Windows with older versions of Java 1.6.
Exception doesn't say anything:
java.lang.NullPointerException
       at com.sun.javaws.Launcher.executeApplication(Unknown Source)
       at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
       at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
       at com.sun.javaws.Launcher.run(Unknown Source)
       at java.lang.Thread.run(Unknown Source)Same as java console ouput
Java Web Start 1.6.0_26
Using JRE version 1.6.0_26-b03 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\esod
c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
m:   print memory usage
o:   trigger logging
p:   reload proxy configuration
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
0-5: set trace level to <n>
#### Java Web Start Error:
#### nullMy Jnlp file looks like this
<jnlp spec="1.0+">
<information>
   <title>Editor</title>
   <vendor>Comapny name</vendor>
   <homepage href="http://company_urll" />
   <description>Editor/description>
</information>
<resources>
   <j2se version="1.6+" />
   <property value="true" name="javaws.cfg.jauthenticator" />
   <jar href="http://192.168.79.33:7070/resources/applet/formeditor.jar" />
</resources>
<security>
   <all-permissions />
</security>
<application-desc main-class="pl.rdata.formeditor.FormEditor">
   <argument>[email protected]</argument>
   <argument>rLq3347491</argument>
   <argument>17</argument>
   <argument>
   http://192.168.79.33:7070/formeditor/formManagerService.service</argument>
   <argument>
   http://192.168.79.33:7070/formeditor/customDataTypeManager.service</argument>
   <argument>
   http://192.168.79.33:7070/formeditor/authorizationService.service</argument>
   <argument>2</argument>
</application-desc>
</jnlp>This application is self signed.
When I download jar file to disk I can run it with command java -jar and it works fine.
After downloading jar I made some tests changing line <jar href="http://192.168.79.33:7070/resources/applet/formeditor.jar" /> in Jnlp file.
When I changed it to <jar href="formeditor.jar" />, and have jar in folder it works.
When I changed it to <jar href="file:///C:/formeditor.jar"> it is not working (same exception).
In every case jar is download correctly and it pass verifying.
can anyone help?
Regards
Michal

867322 wrote:
When I changed it to <jar href="formeditor.jar" />, and have jar in folder it works.Okay, so you at least have a workaround.
can anyone help?Search the bugs database to see if someone else already reported this; if not create a new bug entry. Whatever mistake you could make, you should not be getting a NullPointerException as a result so this is at the very least a bug in the error handling of webstart.
But just some observations to try and see if you can make a difference (which is added input for your bug report). If I check JNLP examples, I see that the url specified is usually without a protocol, so it could be like this:
<jar href="/resources/applet/formeditor.jar" />The JNLP should be on the host that you service the jar from, so Webstart can fill in the host information for itself.
Also you provide a main-class; if the jar manifest specifies a main-class (and it should) you don't need to specify it in your JNLP file.

Java.vm.version property -- Time critical issue!

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