Initial Context is slow within Java Web Start

All,
I have a Swing-based client app that makes EJB calls on a Weblogic 6.1sp2
server. It works great as a standalone app run from the command line. The
problem is when I deploy it using Java Web Start. The 'new
InitialContext(props)' call takes from 5-20 seconds. This is on a single
user development machine with the server and client running on the same
machine.
When I run it from the command line the initial context only takes 1-2
seconds to create. This is using the exact same .jar file used in the Web
Start case.
The Web Start environment is somewhat different than command line clients.
I think it is similar to the applet sandbox environment (security,etc).
Other than this, the client/server interaction speed is good (they should
be since they are on the same machine!). Any ideas?
System particulars:
Weblogic 6.1sp2. Native IO.
Host=127.0.0.1 (Reverse DNS Lookup disabled in server).
Java 1.3.1
Java Web Start 1.0.1
Windows NT 4.0sp5

I have some more details. If I signed the .jar file and give it all
permissions, then the performance is fine (~1s to get initial context).
Does anyone know which permissions are needed to connect quickliy? I would
like to only give the application those permissions it really needs.
Thanks.
Mike Houston <[email protected]> wrote in
news:[email protected]:
All,
I have a Swing-based client app that makes EJB calls on a Weblogic
6.1sp2 server. It works great as a standalone app run from the command
line. The problem is when I deploy it using Java Web Start. The 'new
InitialContext(props)' call takes from 5-20 seconds. This is on a
single user development machine with the server and client running on
the same machine.
When I run it from the command line the initial context only takes 1-2
seconds to create. This is using the exact same .jar file used in the
Web Start case.
The Web Start environment is somewhat different than command line
clients. I think it is similar to the applet sandbox environment
(security,etc).
Other than this, the client/server interaction speed is good (they
should be since they are on the same machine!). Any ideas?
System particulars:
Weblogic 6.1sp2. Native IO.
Host=127.0.0.1 (Reverse DNS Lookup disabled in server).
Java 1.3.1
Java Web Start 1.0.1
Windows NT 4.0sp5

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Java web start application runs too slow...

Hello,
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You might also want to consider changing the "check" attribute of the "update" element from "always" to "background" for a couple of reasons. It should allow your app to start sooner (but this means that you might have to launch once or twice after an update is applied to the web server before the update shows up on the workstation). Also, my impression is that "always" is broken and prevents web start from ever checking to see if your jnlp file has been updated if you launch your app from a web start shortcut - launching from a browser is less likely to have this problem, depending on how often your browser is configured to check for updated resources.

Java Web Start and hsqldb

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jdbc:hsqldb:test
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jdbc:hsqldb:c:\db\test
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File creation and Java Web Start

Hi All,
I need to write a Java application with the following requirements and deploy the application using Java Web Start:
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Allong with signing you jar, you need to request all-permissions in the jnlp file:
<security>
<all-permissions/>
</security>
/Dietz

Java Web Start 1.6 fails to start application without Java Consol on Vista

Hi All,
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Edited by: vovanst on Jul 28, 2009 8:06 AM

Hi,
as the 6u15 just arrived and the above mentioned bug should've been fixed (though I was unable to verify through the release notes), the error is still in there.
We have no timestamped jars, neither ours nor the bouncy castle ones, all certs are valid, ours is self signed.
6u13 runs, 6u14/6u15 won't.
I followed the instructions here: http://bouncycastle.org/devmailarchive/msg10415.html to no avail.
The bcprov.jar is wrapped in its own jnlp and referred as extension from the "main" jnlp.
The interesting parts of the stack trace are these:
Caused by (via getCause): java.lang.SecurityException: JCE cannot authenticate the provider BC
     at javax.crypto.Cipher.getInstance(DashoA13*..)
     at javax.crypto.Cipher.getInstance(DashoA13*..)
Caused by (via getCause): java.util.jar.JarException: Cannot parse https://localhost:8443/deploy/bcprov.jar
     at javax.crypto.SunJCE_c.a(DashoA13*..)
     at javax.crypto.SunJCE_b.b(DashoA13*..)
     at javax.crypto.SunJCE_b.a(DashoA13*..)
     at javax.crypto.Cipher.getInstance(DashoA13*..)
     at javax.crypto.Cipher.getInstance(DashoA13*..)
For me it seems there's a problem with resolving the url of the bcprov.jar, which would explain the lack of a delay which normally occurs when JCE verifies the signature of the bcprov provider classes. The error pops up almost instantly.
I'm clueless what to do now. Did Sun really achieve to completely destroy JCE provider functionality in Javaws, forcing us to use an alternative implementation?
Patric

Problem with win2000sp3 and Java web start

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I had updated win2000 to service pack 2 and everything was fine.
Now i decided to update to service pack 3 (in the process I also updated other components) from Microsoft and:
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2) If i try to run an application from java web start my PC freezes and I have to restart it.
3) Staroffice 6.0, which runs on Java, seems to be fine.
I reinstalled both sp3 and jre etc, with no result.
Is this a known problem?
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Maurizio

I suspect that you have hit a known problem with Swing on Java 1.4.1 with buggy video drivers. Do you have an ATI card? They are the worst offenders. ATI released new drivers for its Radeon line today. They fix the problem.

Java web start in Windows vista

Hi,
1)
When i tried to launch my Java Web start application in Windows Vista (32bit) With Jre 1.6_06 the java web start did not loaded. the process terminates at certain points.
By Remote debugging got to know,: It was exiting the application at different points at different time
At some points it says ClassNotFoundException. No logs at cache location also.
Is it due to the jars are not loaded properly?? Jnlp is pasted bellow
2) another problem here is the system did not have the jre installed earlier. how does system identified the jnlp file format if no jre available first time??
So rather auto download I have installed jre manually and was launching the application
thanks a lot,
<?xml version="1.0" encoding="utf-8"?>
<jnlp
spec="1.0+"
codebase="$$codebase" href="main.jnlp">
<information>
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    <vendor>nc.</vendor>
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    <description kind="short"></description>
     <icon href="$$context/images/Logo.gif" width="64" height="64" kind="default"/>
     <icon href="$$context/images/topLogo.jpg" kind="splash"/>
    <shortcut online='true'>
      <desktop/>
      <menu submenu="Panel"/>
    </shortcut>
    <related-content href="jar:app.jar!/conf/readme.pdf">
     <title>Readme</title>
     <icon href="images/Logo.gif"/>
</related-content>
</information>
     <security>
      <all-permissions/>
   </security>
<update check="always" policy="always"/>
<resources>
        <java version="1.6.0._05+" href="http://java.sun.com/products/autodl/j2se"/>
     <jar href="app.jar" version="1.0+" main="true"/>
     <jar href="common.jar" version="1.0+" download="lazy" main="false"/>
     <jar href="ext.jar" download="lazy" version="1.0+" download="lazy" main="false"/>
     <property name="jnlp.url" value="$$context/url"/>
</resources>
<application-desc main-class="com.app.MainPanel"/>
</jnlp>

>
2) another problem here is the system did not have the jre installed earlier. how does system identified the jnlp file format if no jre available first time??>See the latest [deployment advice|https://jdk6.dev.java.net/deployment_advice.html#JavaScript_used_for_deploying_Ja].
Edited by: AndrewThompson64 on Jun 22, 2008 1:20 AM

Access local disk via Java Web Start??

HI all ,
I had saw the JWS document.
It indicate we can't access local disk via JWS in that Security.
If I need to access local disk by command, does anyone have better suggestion.
And can I run *.bat via Java Web Start?
Thanks very much for your help.
Morris

I do the both thing but still don't access to Local disk.
I just write a simple test class within extend another that create a file (and of course sign it)but still can't create a file Local disk. this MAKE ME MAD and LOOSE MY JOB .
here is my JNLP file:
<?xml version="1.0" encoding="utf-8"?>

<jnlp
spec="1.0+"
codebase="file:///d:/"
href="test.jnlp">
<information>
<title>Me</title>
<vendor>myself</vendor>
<homepage href="http://www.me.com"/>
<description> test test test</description>
<description kind="short">Test creatin of log file on client </description>
</information>
<offline-allowed/>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.4"/>
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</resources>
<application-desc main-class="secMan.Test"/>
</jnlp>

Application started using Java Web Start doesn't launch the first time

I have a Facebook photo uploader application that I plan to distribute using Java Web Start. I'm using Java 6u4 on Windows XP SP2 with 2GB of RAM. I have Java 6u3, Java 6u4 and Java 5 u14 installed and I'm sure the one used is Java 6u4.
I signed my application and make use of all security settings.
Here is my JNLP file:
<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.0+"
     codebase="http://www.antaki.ca/bloom/jars"
     href="http://www.antaki.ca/bloom/Bloom.jnlp">
<information>
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    <icon kind="splash" href="http://www.antaki.ca/bloom/Bloom.jpg"/>
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<shortcut online="false">
<desktop/>
<menu submenu="Bloom"/>
</shortcut>
</information>
    <resources>
        <j2se version="1.5+" initial-heap-size="32m" max-heap-size="128m" href="http://java.sun.com/products/autodl/j2se" />
        <property name="sun.java2d.d3d" value="false"/>
        <jar href="http://www.antaki.ca/bloom/jars/Bloom.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/BrowserLauncher2-1_3.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/SmartProgressMonitor.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/facebook.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/forms-1.1.0.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/json_simple.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/swing-worker-1.1.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/glazedlists_java15.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/swingx-0.9.1.jar"/>
        <jar href="http://www.antaki.ca/bloom/jars/jhbasic.jar"/>
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<security>
     <all-permissions/>
</security>
<application-desc main-class="ca.antaki.www.bloom.gui.Bloom" />
</jnlp>Here is the link for my application http://antaki.ca/bloom/Bloom.jnlp
The first time the application is installed using a link on the browser it's downloaded then the certificate dialog is shown, after that I check the checkbox to accept the certificate permanently. The application doesn't load, it only loads the second time although I see it in the task manager. If I don't accept the certificate permanently it does load. This happens on both Firefox 2 and IE 7. I enabled the console and logging but nothing shows up there.That's really a weird problem, I wonder if Java Web Start is a viable deployment option, it does have great capabilities such as autoupdate but still seems to have important bugs.
Does anyone have any clue about what is going on.
The problem doesn't occur on Ubuntu 7.10.
Thanks,
Carl Antaki

>
You were right my XML file was not correct. I still couldn't find a valid JNLP validator. Sun has to provide that.>No they don't (have to supply a validator for their own document type, though it makes sense to do so), but yes they do (provide a tool that validates XML against schemas). Java can validate XML against a DTD or XSD.
Check these two threads (and chase the links) for more details.
JNLP xsd schema
<http://groups.google.com.au/group/comp.lang.java.programmer/browse_thread/thread/c6f65bf1df5f105d/30c6b7e2dc342dc4>
Validate XML against DTD? XSD OK. SSCCE.
<http://groups.google.com.au/group/comp.lang.java.programmer/browse_thread/thread/5b997a1edb765b11/e831f3066eb4aa38>
Look especially for the posts by Piotr Kobzda.
I had a tool on my site based largely on Piotr's codes, that linked to a valid JNLP DTD and XSD, but unfortunately my site is offline at the moment. Andy assures me that the JNLP 6.0 DTD has been corrected for the developer ..download tutorials of web start, though the online (web site) version may still be invalid.

Java Web Start and DeployDirector: What's the difference?

I am the product manager for DeployDirector at Sitraka (now part of Quest Software). I'm NOT in sales; I'd simply like to provide you with some information.
From talking with DeployDirector users and evaluators, and from my own discussions with the folks at Sun, I have discovered that there is great deal of confusion about the difference between Java Web Start and DeployDirector. I'd like to clarify this by periodically posting some information about the two.
Though the products seem similar in concept, they are designed for different purposes. They both deploy, auto-update and manage the JRE for client-side Java applications, but beyond that, they are quite different.
Java Web Start is ideally designed for applications deployed over the Internet, where application-provider trust is an issue. Why? The security sandbox guarantees that application can do no harm. (There's some good information about Java Web Start and sandbox apps on ScheduleWorld at http://www.scheduleworld.com/itsYourLife.html) Web Start's architecture simply consists of a client piece that interprets a JNLP file. Because of the sandbox and its simplicity, I believe JWS is best used for independent software vendors, independent developers, etc.
Because DeployDirector is ideally designed for internal enterprise applications, it does not enforce the security sandbox. Trust is not an issue here, because internal users typically trust their internal IT group. DeployDirector's architecture consists of both a client and a server piece, which allows us to support more complex deployment and update scenarios (e.g., scheduled and optional updates) and applications management capabilities like rollback, reporting, exception monitoring, authentication/authorization out of the box. All of this is configured through the DeployDirector administration console.
In some situations, DeployDirector may be unnecessary overhead. In other situations, Java Web Start simply does not provide enough capability and building in this into Web Start can be difficult.
If you'd like more information, we have whitepapers and case studies (including one specifically about DeployDirector and JWS) available on our website at http://www.sitraka.com/software/deploydirector/
If you'd like to discuss some of these differences, or if you have questions about DeployDirector, feel free to email me directly. (Or post here, of course.)
Thanks,
Sonal Champsee
[email protected]

Hi Gerald,
Given what I know about your emnity towards DeployDirector (which is clearly illustrated in this thread: http://forum.java.sun.com/thread.jsp?thread=348061&forum=38&message=1446155 that was evidently a response to this article: http://www.javaworld.com/javaworld/jw-11-2002/jw-1122-autoupdate.html) I'm going to take a (pardon the expression) "don't feed the trolls" approach here.
I'm simply re-iterate that JNLP, and its implementations such as Web Start and OpenJNLP, are designed for a very different set of users that DeployDirector. The differences in functionality between the two products reflect that.
The enterprise has different requirements in a deployment mechanism for its internal, critical applications than software vendors and independant developers. DeployDirector addresses the requirements of the enterprise. Frankly, most of our recent customers only chose to buy the product after initially rejecting it and (unsucessfully) attempting to use JNLP and Web Start. Sometimes people only learn the hard way: different users have different requirements which are suited to different tools or technologies.
Sonal

Missing class ServerNamingNode_WLStub using Java Web Start

Hi!
We're developing J2EE application with Swing clients. Our Swing
applications work perfectly standalone but fail when distributed via
Java Web Start. The log says that ServerNamingNode_WLStub cannot be
found. I've looked through all the WL installation directory and
couldn't find it too.
Maybe somebody knows where can I find this class? Or maybe why JWS
doesn't work properly?
Please, help. We do need to use Web Start to distribute application
automatically.
Thank you in advance.
Below you can see a stacktrace.
P.S. Standalone client works perfectly using only weblogic.jar archive.
Java Web Start 1.2 Console, started Tue Sep 24 15:22:08 EEST 2002
Java 2 Runtime Environment: Version 1.4.1 by Sun Microsystems Inc.
Logging to file: C:\Documents and Settings\pawlom\My Documents\webstart.log
http://localhost:7001/ws/
java.lang.ClassNotFoundException:
weblogic.jndi.internal.ServerNamingNode_WLStub
at com.sun.jnlp.JNLPClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:140)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newRootNamingNodeStub(WLInitialContextFactoryDelegate.java:479)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newRemoteContext(WLInitialContextFactoryDelegate.java:452)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newContext(WLInitialContextFactoryDelegate.java:372)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:339)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:221)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:149)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.InitialContext.init(InitialContext.java:219)
at javax.naming.InitialContext.<init>(InitialContext.java:195)
at net.xtrim.crm.ui.delegates.util.Util.getContext(Util.java:64)
at
net.xtrim.crm.ui.delegates.UserSessionDelegate.<init>(UserSessionDelegate.java:84)
at
net.xtrim.crm.ui.delegates.UserSessionDelegate.login(UserSessionDelegate.java:62)
at
net.xtrim.crm.ui.adminconsole.AdminConsole$ConsoleAuthenticator.authenticate(Unknown
Source)
at net.xtrim.crm.ui.adminconsole.auth.DialogLogin.login(Unknown Source)
at net.xtrim.crm.ui.adminconsole.auth.DialogLogin.access$000(Unknown Source)
at
net.xtrim.crm.ui.adminconsole.auth.DialogLogin$LoginThread.run(Unknown
Source)
--------------- nested within: ------------------
weblogic.utils.AssertionError: ***** ASSERTION FAILED ***** - with
nested exception:
[java.lang.ClassNotFoundException:
weblogic.jndi.internal.ServerNamingNode_WLStub]
at
weblogic.jndi.WLInitialContextFactoryDelegate.newRootNamingNodeStub(WLInitialContextFactoryDelegate.java:483)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newRemoteContext(WLInitialContextFactoryDelegate.java:452)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newContext(WLInitialContextFactoryDelegate.java:372)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:339)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:221)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:149)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.InitialContext.init(InitialContext.java:219)
at javax.naming.InitialContext.<init>(InitialContext.java:195)
at net.xtrim.crm.ui.delegates.util.Util.getContext(Util.java:64)
at
net.xtrim.crm.ui.delegates.UserSessionDelegate.<init>(UserSessionDelegate.java:84)
at
net.xtrim.crm.ui.delegates.UserSessionDelegate.login(UserSessionDelegate.java:62)
at
net.xtrim.crm.ui.adminconsole.AdminConsole$ConsoleAuthenticator.authenticate(Unknown
Source)
at net.xtrim.crm.ui.adminconsole.auth.DialogLogin.login(Unknown Source)
at net.xtrim.crm.ui.adminconsole.auth.DialogLogin.access$000(Unknown Source)
at
net.xtrim.crm.ui.adminconsole.auth.DialogLogin$LoginThread.run(Unknown
Source)
java.lang.ClassNotFoundException:
weblogic.jndi.internal.ServerNamingNode_WLStub
at com.sun.jnlp.JNLPClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
at java.lang.ClassLoader.loadClass(ClassLoader.java:255)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:315)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:140)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newRootNamingNodeStub(WLInitialContextFactoryDelegate.java:479)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newRemoteContext(WLInitialContextFactoryDelegate.java:452)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newContext(WLInitialContextFactoryDelegate.java:372)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:339)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:221)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:149)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.InitialContext.init(InitialContext.java:219)
at javax.naming.InitialContext.<init>(InitialContext.java:195)
at net.xtrim.crm.ui.delegates.util.Util.getContext(Util.java:64)
at
net.xtrim.crm.ui.delegates.UserSessionDelegate.<init>(UserSessionDelegate.java:84)
at
net.xtrim.crm.ui.delegates.UserSessionDelegate.login(UserSessionDelegate.java:62)
at
net.xtrim.crm.ui.adminconsole.AdminConsole$ConsoleAuthenticator.authenticate(Unknown
Source)
at net.xtrim.crm.ui.adminconsole.auth.DialogLogin.login(Unknown Source)
at net.xtrim.crm.ui.adminconsole.auth.DialogLogin.access$000(Unknown Source)
at
net.xtrim.crm.ui.adminconsole.auth.DialogLogin$LoginThread.run(Unknown
Source)
--------------- nested within: ------------------
weblogic.utils.AssertionError: ***** ASSERTION FAILED ***** - with
nested exception:
[java.lang.ClassNotFoundException:
weblogic.jndi.internal.ServerNamingNode_WLStub]
at
weblogic.jndi.WLInitialContextFactoryDelegate.newRootNamingNodeStub(WLInitialContextFactoryDelegate.java:483)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newRemoteContext(WLInitialContextFactoryDelegate.java:452)
at
weblogic.jndi.WLInitialContextFactoryDelegate.newContext(WLInitialContextFactoryDelegate.java:372)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:339)
at
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:221)
at
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:149)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
at javax.naming.

Maybe this link can get your started:
http://www.esus.com/javaindex/j2se/javawebstart/plugingetstarted.html
Cheers,
Joris

Java Web Start and Policy File

Hi,
I've a problem for Java Web Start (JWS) in working with Policy File.
I like to apply a policy file for a JWS application to fine tune the secuirty setting instead of granting permission in JWS.
For an applet environment, I can apply policy file like this:
appletviewer -J"-Djava.security.policy=all.policy" writeFile.html
However, in JWS environment, I try to apply in JNLP file as below but fail:
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+"
codebase="http://130.18.52.226:8080/testing/"
>
<information>
<title>JWS JFrame App</title>
<vendor>Java Developer Connection</vendor>
<homepage href="http://java.sun.com/jdc" />
<description>Demonstration of JNLP</description>
<icon href="hsbc.gif" width="32" height="32" />
</information>
<resources>
<j2se version="1.3*" />
<property name="java.security.manager" value="x" />
<property name="java.security.policy" value="testing.policy"/>
<jar href="testing.jar"/>
</resources>
<application-desc main-class="JWSJFrameApp" />
</jnlp>
The error message like this:
Java Web Start Console, started Tue Sep 03 09:59:36 CST 2002
Java 2 Runtime Environment: Version 1.3.0 by Sun Microsystems Inc.
java.security.AccessControlException: access denied (java.util.PropertyPermission java.security.manager write)
java.security.AccessControlException: access denied (java.util.PropertyPermission java.security.policy write)
Could anyone please help on this!
Many thanks!
Regards,
Simon Ho

There are two problems with what you are trying to do.
First, setting a property PROP=VALUE in the jnlp file does not mean that java will be launched -DPROP=VALUE, instead, javawebstart will call System.setProperty(PROP,VALUE) before your apps main() is called. The difference is, the property will not be set at the time the VM is initialized.
Second, the javaws security policy will not allow you to set arbitrary properties in an unsigned application. Only properties begining with "jnlp." or "javaws." (and possibly a few other specific props known to the native javaws code) can be set in an application unless <all-permissions> is specified and the app is signed.

Java Web Start and BC4J/OC4J

Hi all developers,
This is my first forum message, and I hope that there is someone that can help me.
Problem: A JClient using BC4J in a 3tier situation work perfectly well when run from within the IDE, however using the Web Start Wizard and deployed to the Application server and run from Java Web Start, it does not work.
Is there any HowTo or documentation on the right settings, roles, security, procedures, etc. with regard to Jclient, BC4J and Java WebStart?
Thanks
Craig

Ant build file which does the signing
Please make sure you make a backup of the existing bc4jlibs.ear before you use this build file.

<project name="buildear" basedir="." default="ear">

<property name="lib.home" value="${jdeveloper.root}/lib"/>
<property name="ord.home" value="${jdeveloper.root}/ord"/>
<property name="j2ee.home" value="${jdeveloper.root}/j2ee"/>
<property name="jlib.home" value="${jdeveloper.root}/jlib"/>
<property name="jdev.home" value="${jdeveloper.root}/jdev"/>
<property name="vbroker4.home" value="${jdeveloper.root}/vbroker4"/>
<property name="jdbc.home" value="${jdeveloper.root}/jdbc"/>
<property name="BC4J.home" value="${jdeveloper.root}/BC4J"/>

<property name="temp.dir" value="${jdeveloper.root}/jdev/temp"/>
<property name="temp.war.dir" value="${temp.dir}/warroot"/>
<property name="temp.ear.dir" value="${temp.dir}/earroot"/>

<property name="lib.war.name" value="${temp.ear.dir}/lib.war"/>
<property name="ord.war.name" value="${temp.ear.dir}/ord.war"/>
<property name="j2ee.war.name" value="${temp.ear.dir}/j2ee.war"/>
<property name="jlib.war.name" value="${temp.ear.dir}/jlib.war"/>
<property name="jdev.war.name" value="${temp.ear.dir}/jdev.war"/>
<property name="vbroker4.war.name" value="${temp.ear.dir}/vbroker4.war"/>
<property name="jdbc.war.name" value="${temp.ear.dir}/jdbc.war"/>
<property name="BC4J.war.name" value="${temp.ear.dir}/BC4J.war"/>
<taskdef name="appxml" classname="oracle.jbo.dt.jclient.ant.taskdefs.ApplicationXmlGenerator"/>
<target name="init">
<mkdir dir="${temp.dir}"/>
<mkdir dir="${temp.war.dir}"/>
<mkdir dir="${temp.ear.dir}"/>
</target>
<target name="clean">
<delete dir="${temp.dir}"/>
</target>
<target name="sign_jar" if="signing.enabled">
<signjar jar="${jarname}" alias="${alias}" storepass="${storepass}"/>
</target>

<target name="lib_war" depends="init">
<copy todir="${temp.war.dir}">
<fileset dir="${lib.home}">
<include name="xmlparserv2.jar"/>
</fileset>
<fileset dir="${jdeveloper.root}/jdev/multi/system/templates/jclient">
<include name="WEB-INF/web.xml"/>
</fileset>
</copy>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/xmlparserv2.jar"/>
</antcall>
<jar jarfile="${temp.ear.dir}/lib.war">
<fileset dir="${temp.war.dir}">
<include name="**/*.jar"/>
<include name="**/*.zip"/>
<include name="WEB-INF/web.xml"/>
</fileset>
</jar>
<delete dir="${temp.war.dir}"/>
</target>

<target name="ord_war" depends="init">
<copy todir="${temp.war.dir}">
<fileset dir="${ord.home}">
<include name="jlib/jmf.jar"/>
<include name="jlib/ordhttp.jar"/>
<include name="jlib/ordim.jar"/>
</fileset>
<fileset dir="${jdeveloper.root}/jdev/multi/system/templates/jclient">
<include name="WEB-INF/web.xml"/>
</fileset>
</copy>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/jmf.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/ordhttp.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/ordim.jar"/>
</antcall>
<jar jarfile="${temp.ear.dir}/ord.war">
<fileset dir="${temp.war.dir}">
<include name="**/*.jar"/>
<include name="**/*.zip"/>
<include name="WEB-INF/web.xml"/>
</fileset>
</jar>
<delete dir="${temp.war.dir}"/>
</target>

<target name="j2ee_war" depends="init">
<copy todir="${temp.war.dir}">
<fileset dir="${j2ee.home}">
<include name="home/lib/ejb.jar"/>
<include name="home/lib/jaas.jar"/>
<include name="home/lib/jms.jar"/>
<include name="home/lib/jndi.jar"/>
<include name="home/lib/jta.jar"/>
<include name="home/oc4jclient.jar"/>
</fileset>
<fileset dir="${jdeveloper.root}/jdev/multi/system/templates/jclient">
<include name="WEB-INF/web.xml"/>
</fileset>
</copy>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/home/lib/ejb.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/home/lib/jaas.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/home/lib/jms.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/home/lib/jndi.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/home/lib/jta.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/home/oc4jclient.jar"/>
</antcall>
<jar jarfile="${temp.ear.dir}/j2ee.war">
<fileset dir="${temp.war.dir}">
<include name="**/*.jar"/>
<include name="**/*.zip"/>
<include name="WEB-INF/web.xml"/>
</fileset>
</jar>
<delete dir="${temp.war.dir}"/>
</target>

<target name="jlib_war" depends="init">
<copy todir="${temp.war.dir}">
<fileset dir="${jlib.home}">
<include name="LW_PfjBean.jar"/>
<include name="bigraphbean.jar"/>
<include name="jdev-cm.jar"/>
</fileset>
<fileset dir="${jdeveloper.root}/jdev/multi/system/templates/jclient">
<include name="WEB-INF/web.xml"/>
</fileset>
</copy>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/LW_PfjBean.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/bigraphbean.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jdev-cm.jar"/>
</antcall>
<jar jarfile="${temp.ear.dir}/jlib.war">
<fileset dir="${temp.war.dir}">
<include name="**/*.jar"/>
<include name="**/*.zip"/>
<include name="WEB-INF/web.xml"/>
</fileset>
</jar>
<delete dir="${temp.war.dir}"/>
</target>

<target name="jdev_war" depends="init">
<copy todir="${temp.war.dir}">
<fileset dir="${jdev.home}">
<include name="lib/jdev-rt.jar"/>
</fileset>
<fileset dir="${jdeveloper.root}/jdev/multi/system/templates/jclient">
<include name="WEB-INF/web.xml"/>
</fileset>
</copy>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/jdev-rt.jar"/>
</antcall>
<jar jarfile="${temp.ear.dir}/jdev.war">
<fileset dir="${temp.war.dir}">
<include name="**/*.jar"/>
<include name="**/*.zip"/>
<include name="WEB-INF/web.xml"/>
</fileset>
</jar>
<delete dir="${temp.war.dir}"/>
</target>

<target name="vbroker4_war" depends="init">
<copy todir="${temp.war.dir}">
<fileset dir="${vbroker4.home}">
<include name="lib/vbjorb.jar"/>
</fileset>
<fileset dir="${jdeveloper.root}/jdev/multi/system/templates/jclient">
<include name="WEB-INF/web.xml"/>
</fileset>
</copy>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/vbjorb.jar"/>
</antcall>
<jar jarfile="${temp.ear.dir}/vbroker4.war">
<fileset dir="${temp.war.dir}">
<include name="**/*.jar"/>
<include name="**/*.zip"/>
<include name="WEB-INF/web.xml"/>
</fileset>
</jar>
<delete dir="${temp.war.dir}"/>
</target>

<target name="jdbc_war" depends="init">
<copy todir="${temp.war.dir}">
<fileset dir="${jdbc.home}">
<include name="lib/classes12.jar"/>
<include name="lib/nls_charset12.jar"/>
</fileset>
<fileset dir="${jdeveloper.root}/jdev/multi/system/templates/jclient">
<include name="WEB-INF/web.xml"/>
</fileset>
</copy>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/classes12.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/nls_charset12.jar"/>
</antcall>
<jar jarfile="${temp.ear.dir}/jdbc.war">
<fileset dir="${temp.war.dir}">
<include name="**/*.jar"/>
<include name="**/*.zip"/>
<include name="WEB-INF/web.xml"/>
</fileset>
</jar>
<delete dir="${temp.war.dir}"/>
</target>

<target name="BC4J_war" depends="init">
<copy todir="${temp.war.dir}">
<fileset dir="${BC4J.home}">
<include name="jlib/bc4jctvb.jar"/>
<include name="jlib/bc4jdatum.jar"/>
<include name="jlib/bc4jdomgnrc.jar"/>
<include name="jlib/bc4jimjui.jar"/>
<include name="jlib/bc4jmtvb.jar"/>
<include name="jlib/bc4jui.jar"/>
<include name="lib/bc4jct.jar"/>
<include name="lib/bc4jctejb.jar"/>
<include name="lib/bc4jdomorcl.jar"/>
<include name="lib/bc4jimdomains.jar"/>
<include name="lib/bc4jmt.jar"/>
<include name="lib/bc4jmtejb.jar"/>
<include name="lib/collections.jar"/>
</fileset>
<fileset dir="${jdeveloper.root}/jdev/multi/system/templates/jclient">
<include name="WEB-INF/web.xml"/>
</fileset>
</copy>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/bc4jctvb.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/bc4jdatum.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/bc4jdomgnrc.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/bc4jimjui.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/bc4jmtvb.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/jlib/bc4jui.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/bc4jct.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/bc4jctejb.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/bc4jdomorcl.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/bc4jimdomains.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/bc4jmt.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/bc4jmtejb.jar"/>
</antcall>
<antcall target="sign_jar">
<param name="jarname" value="${temp.war.dir}/lib/collections.jar"/>
</antcall>
<jar jarfile="${temp.ear.dir}/BC4J.war">
<fileset dir="${temp.war.dir}">
<include name="**/*.jar"/>
<include name="**/*.zip"/>
<include name="WEB-INF/web.xml"/>
</fileset>
</jar>
<delete dir="${temp.war.dir}"/>
</target>
<target name="create_application_xml" depends="init">
<appxml appxml="${temp.ear.dir}/application.xml">
<displayname name="bc4j"/>
<webmodule weburi="lib.war" contextroot="/lib"/>
<webmodule weburi="ord.war" contextroot="/ord"/>
<webmodule weburi="j2ee.war" contextroot="/j2ee"/>
<webmodule weburi="jlib.war" contextroot="/jlib"/>
<webmodule weburi="jdev.war" contextroot="/jdev"/>
<webmodule weburi="vbroker4.war" contextroot="/vbroker4"/>
<webmodule weburi="jdbc.war" contextroot="/jdbc"/>
<webmodule weburi="BC4J.war" contextroot="/BC4J"/>
</appxml>
</target>
<target name="ear">
<antcall target="lib_war"/>
<antcall target="ord_war"/>
<antcall target="j2ee_war"/>
<antcall target="jlib_war"/>
<antcall target="jdev_war"/>
<antcall target="vbroker4_war"/>
<antcall target="jdbc_war"/>
<antcall target="BC4J_war"/>
<antcall target="create_application_xml"/>
<ear earfile="${ear.file.name}" appxml="${temp.ear.dir}/application.xml">
<fileset dir="${temp.ear.dir}">
<include name="*.war"/>
</fileset>
</ear>
</target>

<target name="sign">
<property name="signing.enabled" value="true"/>
<antcall target="ear"/>
</target>
</project>

Java Web Start and IE6 as the default browser on win2k

Hi,
I need to access web pages from my java web start app. These pages are on the save server and the same webapp context as the jsp page to launch the web start app, and are protected.
I have tried with basic auth and servlet filter with cookie to control the access to the web server. When I need to access web server resource from web start app, I create the URL to the page I want to access, set the auth header or cookie and call the web start BasicService to open it in the default browser.
With Netscape 4/7 or Firefox as the default browser, I have no problem to send the auth header or cookie from the web start app to the webserver for security checking and get access to the resource on the server.
But it seems not woking when IE is set to be the default browser. I am always asked for userid/password if I use basic auth; or redirected to the login page if I use servlet filter and cookie.
If anybody knows a solution for this IE dfficulity, could you please share it?
harry

How did you even get k9 on your iPad...it does not show up in my iTunes apps? So I
Had to download it on my computer ...transfer it to my iPad... Now it's in my Dropbox
On the iPad...but I can't figure out how to install it from here......I want a browser on my
iPad that ihas parental controls...I see quite a few should be in the iTunes store..even
Firefox....but not a one show up in my iTunes app store?????

Java Web Start and DNS Service Provider

I have an implementation of a DNS Service Provider that works fine as an Application. But when deployed as an applet or application through Java Web Start, it is not picking up the DNS provider override
It is like this. I have a Simple Test Program
dabba#cat Test.java
import java.net.*;
import sun.net.spi.nameservice.NameService;
import sun.net.spi.nameservice.dns.DNSNameService;
public class Test {
public static void main(String args[]) throws Exception{
try {
System.setProperty("sun.net.spi.nameservice.provider.1", "dns,mine");
InetAddress ia = InetAddress.getByName(args[0]);
System.out.println(ia);
catch(Exception e) {
System.out.println("in exception handler" + e);
dabba# cat MyNameService.java
import sun.net.spi.nameservice.NameService;
import sun.net.spi.nameservice.dns.DNSNameService;
import java.net.UnknownHostException;
public class MyNameService implements NameService {
static {
//System.setProperty("sun.net.spi.nameservice.nameservers", "localhost"); // ETL
NameService ns;
public MyNameService() throws Exception {
ns = new DNSNameService();
public byte[][] lookupAllHostAddr(String host) throws UnknownHostException {
System.out.println("*** lookup host = " + host);
byte[][] a = new byte[1][4];
a[0][0]=(byte)127;
a[0][1]=0;
a[0][2]=0;
a[0][3]=(byte)1;
System.out.println("return a.length = " + a.length);
return a;
public String getHostByAddr(byte[] addr) throws UnknownHostException {
throw new Error("not implemented");
dabba#cat MyNameServiceDescriptor.java
import sun.net.spi.nameservice.*;
public final class MyNameServiceDescriptor implements NameServiceDescriptor {
public NameService createNameService() throws Exception {
return new MyNameService();
public String getProviderName() {
return "mine";
public String getType() {
return "dns";
dabba#cat META-INF/services/sun.net.spi.nameservice.NameServiceDescriptor
# dns service provider descriptor
MyNameServiceDescriptor
dabba# java -cp . Test www.sun.com
*** lookup host = www.sun.com
return a.length = 1
www.sun.com/127.0.0.1
So the above program works as intended as an application. Whatever hostname I specify, it returns localhost. Now, I'm not able to get this to work when I embed this in an Applet or Application launced through Java Web Start. Am I missing something
thanks,
Balaji

We are trying to do the same thing for a different purpose. You need to set the override sooner than WebStart lets you... It has to be on the command line.
We are trying to overide the default nameservice because it uses reverse dns which is slow at some of our sites. We need to set the parameter
sun.net.spi.nameservice.provider.1=dns,sun before the VM starts using webstart. The only way we can do this is by setting the environment variable
JAVAWS_VM_ARGS=-Dsun.net.spi.nameservice.provider.1=dns,sun on the client. This is not real easy from the server side.
Is there any way we can make the client default to this nameservice provider? There must be some file somewhere on the client I can put this property in...

Initial Context is slow within Java Web Start

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