Database access with Jave Web Start

Can a java application, that has been deployed by using Java Web Start, access information from a database that's located on the web server from where the application was deployed?

Yes, if you use the type 4 (ie, thin) driver and include the driver's jar file as part of the app.
Technically you can do it with a thick driver but then you have first install the driver on the client machine and I assume this isn't what you are looking for,

Similar Messages

Access JAR File while running App with Java Web Start

Hello guys,
I want to delpoy my application so that I can run it when I click on the appropriate button in a web page.
I have a Jar file for all the files that the app needs. No, not all of the files are included.
Indeed, I use JAR files such jdom.jar or postgres...jar that I must use in within my application.
How can I access these JAR files knowing that I can't point to files in a JAR file A from within a JAR file B, if the JAR file B contains the JAR file A?
The main JAR file that I put on the web server can be seen as the JAR file B and the other JAR files must be stored somewhere for the java classes within the main JAR file to have access to them.
I wonder whether there is another way to structure the project.
Thanks.

Hi Andrew.
I have followed your suggestions and here is what my .jnlp file look like:
<tt>
<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.0+" codebase="http://localhost:8080/koedops" href="beta.jnlp">
     <information>
          <title>KOEDOPS</title>
          <vendor>Pr. Fischer</vendor>
          <homepage href="http://localhost:8080/" />
          <description>Downloading koedops with Java Web Start</description>
     </information>
     <resources>
          <j2se version="1.6+" />
          <jar href="beta.jar" main="true"/>
          <jar href="jcalendar-1.3.3.jar" />
          <jar href="jdom.jar" />
          <jar href="postgresql-8.4-701.jdbc4.jar" />
     </resources>
     <application-desc main-class="general.Application" />
</jnlp>
</tt>
The three other jar-files reside in the same directory as the .jnlp file and the beta.jar file on the tomcat server.
When I launch the application though nothing happens upon the download. In contrast, if I change the main class to a class file that requires no extra library, it runs perfectly.
I can't be sure whether the jar-files are successfully accessed.
Regards.
Edmond

JFrame running with Java Web Start

I have a problem with running my application with Java Web Start. My main application window is a JFrame and I have a line of code as below
this.setExtendedState(MAXIMIZED_BOTH);
It runs fine when run on a PC locally. But if I try to run the application through Java Webstart I get an exception. Can anyone help me with this. I would like the JFrame to open maximized.
TIA.

try posting the exception to get better answers. but anyway, i'm guessing its a security issue... your app is trying to access the properties of the local system. you might have to sign your application for this to go away.

Err. in programs copiled with Jdev 9.0.3 and run with Java Web Start

Hi all,
when I build my programs with Oracle9j JDeveloper 9.0.3.988 and I use them with Java Web Start, programs do not run, while when compiled with Oracle9j JDeveloper 9.0.2.x it runs without problems.
The Java version used in both cases is 1.4.0.
Here's an example of the log from Java Web Start:
Error in JavaWeb Start
viewer/imageViewer/ViewerAppState$1 (Illegal Variable name " val$files")
java.lang.ClassFormatError: viewer/imageViewer/ViewerAppState$1 (Illegal Variable name " val$files")
     at java.lang.ClassLoader.defineClass0(Native Method)
     at java.lang.ClassLoader.defineClass(ClassLoader.java:502)
     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
     at com.sun.jnlp.JNLPClassLoader.defineClass(Unknown Source)
     at com.sun.jnlp.JNLPClassLoader.access$1(Unknown Source)
     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 viewer.imageViewer.UtilityMenuPane.jbInit(UtilityMenuPane.java:167)
     at viewer.imageViewer.UtilityMenuPane.<init>(UtilityMenuPane.java:155)
     at viewer.imageViewer.UtilityMenuPane.getInstance(UtilityMenuPane.java:147)
     at viewer.imageViewer.ImageViewerFrame.jbInit(ImageViewerFrame.java:179)
     at viewer.imageViewer.ImageViewerFrame.<init>(ImageViewerFrame.java:145)
     at viewer.imageViewer.ImageViewerFrame.getInstance(ImageViewerFrame.java:126)
     at viewer.ImageViewer.execute(ImageViewer.java:30)
     at viewer.Viewer.execute(Viewer.java:63)
     at viewer.Viewer.<init>(Viewer.java:27)
     at viewer.Viewer.main(Viewer.java:40)
     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:324)
     at com.sun.javaws.Launcher.executeApplication(Unknown Source)
     at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
     at com.sun.javaws.Launcher.continueLaunch(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Thread.java:536)
Does anybody know why this happens?
Thanks

Hi There.
We had the same problem with some of our code. We moved the definition of the class from a method out of the method. Like this:
public class{
class{
instead of doing this:
public class{
method() {
class{
This worked with the web start......
Best regards
Jesper Lorentzen

Using Berkeley Java Edition with Java Web Start

Hi
Have anyone had any experience using Berkeley Java Edition with Java Web Start?. I need to create an application that will download with the database to a client computer and create the database there

Thanks for your reply Luca-Sanna,
This is my jnlp file
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://localhost:8080/dist" href="launch.jnlp">
<information>
<title>MyApplication</title>
<vendor>My Company</vendor>
<homepage href="/test.html"/>
<description>My Test Application</description>
<description kind="short">My Application</description>
<icon href="test.gif" kind="default"/>
<offline-allowed/>
</information>
<security>
<all-permissions/>
</security>
<resources>
<j2se version="1.5+"/>
<jar href="myapp.jar" main="true" download="eager"/>
<jar href="lib/appframework-1.0.3.jar" download="eager"/>
<jar href="lib/beansbinding-1.2.1.jar" download="eager"/>
<jar href="lib/commons-beanutils.jar" download="eager"/>
<jar href="lib/commons-collections.jar" download="eager"/>
<jar href="lib/commons-digester.jar" download="eager"/>
<jar href="lib/commons-logging.jar" download="eager"/>
<jar href="lib/derby.jar" download="eager"/>
<jar href="lib/derbyclient.jar" download="eager"/>
<jar href="lib/derbynet.jar" download="eager"/>
<jar href="lib/itext-1.3.1.jar" download="eager"/>
<jar href="lib/jasperreports-1.3.0.jar" download="eager"/>
<jar href="lib/jbossall-client-2004-05-11.jar" download="eager"/>
<jar href="lib/jdt-compiler-3.1.1.jar" download="eager"/>
<jar href="lib/poi-2.0-final-20040126.jar" download="eager"/>
<jar href="lib/swing-worker-1.1.jar" download="eager"/>
<jar href="lib/toplink-essentials-agent.jar" download="eager"/>
<jar href="lib/toplink-essentials.jar" download="eager"/>
</resources>
<application-desc main-class="mypackage.Login">
</application-desc>
</jnlp>
I have seen many forums with the same above problem with no reply.
Anyone knows what exactly the problem is?

I can't open or save file with Java Web Start

Hi,
i can't open or save file with Java Web Start:
import java.io.*;
import java.util.*;
public class MetaDataFileCreator {
public String fileNameSpace = null;
public String fileName = null;
protected Properties file = null;
public MetaDataFileCreator(String fileNameSpace, String fileName) {
this.fileNameSpace = fileNameSpace;
this.fileName = fileName;
public void createMetaDataFile() {
try {
System.out.println("file METADATA");
ClassLoader cl = this.getClass().getClassLoader();
String nameFileMetaData = fileNameSpace + fileName + ".txt";
FileOutputStream fileOS = new FileOutputStream(cl.getResource(nameFileMetaData).getFile());
file = new Properties();
file.setProperty("aaaaa", "aaaa");
file.store(fileOS, "");
fileOS.close();
} catch (Exception e) {
System.out.println("Error writing metadata-file: " + e);
System.exit(1);
e.printStackTrace();
I have try also to open a file like this:
ClassLoader cl = this.getClass().getClassLoader();
file.load(cl.getResourceAsStream(nameFile));
also like this:
try {
fos = (FileOpenService)ServiceManager.lookup("javax.jnlp.FileOpenService");
fss = (FileSaveService)ServiceManager.lookup("javax.jnlp.FileSaveService");
} catch (UnavailableServiceException e) {
fss = null;
fos = null;
System.out.println("Error with JNLP");
System.exit(1);
if (fss != null && fos != null) {
try {
// get a FileContents object to work with from the
// FileOpenService
FileContents fc = fos.openFileDialog(null, null);
//FileContents newfc2 = fss.saveAsFileDialog(null, null, fc);
// get the OutputStream and write the file back out
if (fc.canWrite()) {
// don't append
os = fc.getOutputStream(false);
} catch (Exception e) {
e.printStackTrace();
also like this:
File f = new File((System.getProperty("user.home")+"x.txt").toString());
FileOutputStream fileX = new FileOutputStream(f);
OutputX = new PrintWriter(new BufferedWriter(new OutputStreamWriter(fileX, "UTF8")));
OutputX.println(....
but it doesn't work with Java Web Start.
Can someone help me?
How can I open or save file?
thank you.
Sebastiano

Did you specify <all-permissions/> in your JNLP file? Did you sign your code? What error are you getting?

Problems with Java web start

Hi All,
I am facing a problem with Java Web Start. Which is the most appropriate version of JDK recommended for SAP XI? I tried
JDK 1.4.2_04
JDK 1.4.2_09
JDK1.4.2_11
JDK1.5.0_01
When I click on Integration repository or Directory for the first time, it loads the jar files and while loading, I get an error msg "Unable to launch Integration Builder". After a lot of retries I get sucess. But still we are facing this issue in some machines. Can you pls let me know if there is any pre configuration or some thing I am missing...
Regards,
Jai Shankar

Did you check the proxy settings in JAVA Web start. Please follow the below instructions.
This could be set to None or to specific for values HTTP Proxy and HTTP Port .
Contact your network administrator for the correct settings.
To change the Proxy Settings:
Select Windows Start menu -> All Programs -> Java Web Start -> Java Web Start
Choose File -> Preferences -> General
Choose None to switch off the proxy settings or Manual to set the HTTP Proxy and HTTP Port.
ChooseOK
Close Java Webstart

Help with Java Web Start

Hi everybody,
I have a simple Java application that has a JFrame containing a TextField displaying some text inside it. I am using the NetBeans IDE. I am trying to Enable Java Web start for this application. The steps I have taken upto now are:
1. Right click on Project, Java Web Start -> Enable Java Web Start. This created the jnlp file.
2. In the Resources section, I added the jar file for swing. ( I am not sure if I have to add the path for jnlp.jar etc, or are these found automatically?)
3. Right click on Project, Java Web Start -> Deploy with Java Web Start. This launches the browser with the Click me link, but on clicking this link, I get the following error.
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Wrapper cannot find servlet class jnlp.sample.servlet.JnlpDownloadServlet or a class it depends on
     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
     org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
     org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
     org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
     org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     java.lang.Thread.run(Thread.java:534)
root cause
java.lang.ClassNotFoundException: jnlp.sample.servlet.JnlpDownloadServlet
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1332)
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1181)
     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
     org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
     org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
     org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
     org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
     org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     java.lang.Thread.run(Thread.java:534)I have all the jnlp files in my jdk directory, and I am not sure why it can't find it. Is there something I am missing?
Thanks
George

I am not sure what it has to do with servlets, I just followed a tutorial on using Netbeans with Java Web Start, and did only the steps as mentioned in my first post. And ended up with the error.
Anyways, I added the jnlp jar files(jnlp.jar, jnlp-servlet.jar, jardiff.jar) in the WEB-INF/lib directory. And it seems to deploying it now. I can get my application to load on clicking on the "Click me" link. But the controls on my application don't seem to be working.
Also, when I try to Right click on my project -> Java Web Start -> Run with Java Web Start, I get the following error message,
javaws-run: C:\Documents and Settings\Lux\Visualization\nbproject\build-jaws-impl.xml:36: Execute failed: java.io.IOException: CreateProcess: C:\j2sdk1.4.2_13\bin\javaws "file:///C:/Documents and Settings/Lux/Visualization/Visualization.jnlp" error=2
BUILD FAILED (total time: 0 seconds)
Any help appreciated.
Thanks.
George

How import policy file with Java Web Start

hi everybody,
I wrote an application launched by Java Web Start.
This application encrypt data on the client side and POST them to the server.
To encrypt I use JCE packages including sunjce_provider.jar, jce1_2_1.jar and
local_policy.jar and US_export_policy.jar.
local_policy.jar and US_export_policy.jar are not packages, each of them contains
a policy file.
When I test encryption on local no problem, but when I test with Java Web Start
I've got this exception :
java.lang.ExceptionInInitializerError:
java.lang.SecurityException: Cannot set up certs for trusted CAs
It's because the application launched by Java Web Start doesn't find local_policy.jar
and US_export_policy.jar.
There's a problem in my JNLP file :
<jnlp spec="1.0+" href="http://myserver/sources/test.jnlp" codebase="http://myserver/sources">
     <information>
          <title>Java Web Start TEST</title>
          <vendor>NLE Intech</vendor>
          <description>cryptage then upload</description>
     </information>
     <security>
          <all-permissions/>
     </security>
     <resources>
          <j2se version="1.3" />
          <jar href="sunjce_provider.jar" />
          <jar href="jce1_2_1.jar" />
          <jar href="local_policy.jar" />
          <jar href="US_export_policy.jar" />
     </resources>
     <application-desc main-class="HelloWorldSwing" >
          <argument>c:\myfiletoencrypt</argument>
     </application-desc>
</jnlp>
thank you for your answer

Hi Nicolas,
If you migrate to JDK1.4 and use the signed Bouncy JAR, you could resolve the problem,
if you don't want to use unlimited cryptography.
See my posting on your other question.
Agnes
PS. There is a mistake in my other reply, the "local_policy.jar" and the other files must have
to go into JRE/LIB/SECURITY directory

Issue Downloading Resources with Java Web Start

I'm having an issue with Java Web Start downloading resources. After executing the JNLP file, the download will start and the main Jar will download, then the download will just stop. The downloader is still running, but the progress bar just sits and nothing happens. This only will happen on some machines, even ones on the same network. Others download fine, and the application starts correctly. I thought maybe a setting with java web start needed to be changed, but the proxy settings are set to the browser, which are the same for all machines. The JNLP file is below (however, for security reasons the codebase/homepage are left out, but they are correct in the actual file). Does anyone have any idea of what the problem might be?
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
     <jnlp codebase="..." spec="1.0+">
     <information>
     <title>Java3D Test</title>
          <vendor>None</vendor>
          <homepage href="..." />
          <description>Test application for Java3D</description>
     </information>
     <update check="always" />
<security>
     <all-permissions/>
</security>
<resources>
          <j2se version="1.5+"/>
     <jar eager="true" href="TestJava3D.jar" main="true" />
          <jar href="lib/Library.jar" />
          <jar href="lib/Java3D.jar" />
          <jar href="lib/j3dnative.jar" />
     </resources>
<application-desc main-class="testjava3d.TestJava3DMain">
</application-desc>
</jnlp>

You could enable JavaConsole and turn on tracing to get more debugging info. See: http://docs.oracle.com/javase/7/docs/webnotes/tsg/TSG-Desktop/html/plugin.html#gcexdf

Using Xerces with Java Web Start

I read that there might be problems using xerces with Java Web Start, because JWS uses Sun's implementation of JAXP internally. My application needs Xerces and I think I am able to get it working using the following settings in the JNLP file:
<resources>
<j2se version="1.3"/>
<jar href="xerces-1.4.3.jar"/>
<property name="javax.xml.parsers.DocumentBuilderFactory" value="org.apache.xerces.jaxp.DocumentBuilderFactoryImpl"/>
</resources>

Hi,
I have packaged the xerces jar into my code jar and it does work. HTH
Aniruddha

Launching an applet with java web start

Is there a way to launch an applet with java web start? That is, to have the java appelt run in a browser but get deployed with a jnlp-file and have all the benefits of java web start?
Robert

http://www.physci.org/jws/#jtest

Using JCE with java web start

We are trying to use bouncy castle provider in an app that is distributed using Java Web Start. We sign the jars for use with jws so that they have unrestricted access. The problem is that bouncy castle provider jar is already signed, and jws does not like a jar signed by multiple signers so we can't re-sign it using our key. If we strip off the provider's signature information from the jars and sign it using our key, the JCE throws an exception as if it could not locate the RSA provider.
Has anyone faced this problem? Any workarounds that you're aware of?
Thanks!

Well, I found this was already asked on the forum. Sorry for not checking that before posting. In case someone is interested, following are some links:
http://forum.java.sun.com/thread.jsp?forum=38&thread=291494
http://forum.java.sun.com/thread.jsp?forum=38&thread=237963
http://forum.java.sun.com/thread.jsp?forum=38&thread=71559

Weblogic with Java Web Start

Hi, everyone.
I am trying to do an example of application with JWS, but in my example the server is Tomcat, because I did not found an example to do with Weblogic.
So I want to know where I have to configurate my server to set my application as a JWS application, to be donwloaded fo another application.
Thaks!

          Could someone kindly follow this and find us a solution?
          Thank you.
          ==========================================================
          Dimitri Rakitine <[email protected]> wrote:
          >Did you check that this is not an error message being returned ? That
          >would explain text/html mime type.
          >
          >Jim Mittler <[email protected]> wrote:
          >> Hi,
          >
          >> I am trying to use Java Web Start with a Weblogic HTTP cluster. The
          >> HttpClusterServlet seems to never return a proper jnlp mime type.
          >
          >> What I see in JWS is :
          >
          >> Bad MIME type returned from server when accessing resource:
          >> http://myserver:7070/myapp.jnlp - text/html
          >
          >> The web.xml looks ok to me.
          >
          >> <mime-mapping>
          >> <extension>jnlp</extension>
          >> <mime-type>application/x-java-jnlp-file</mime-type>
          >> </mime-mapping>
          >
          >> Everything works ok when I don't use the cluster servlet.
          >
          >> Any help is much appreciated!
          >
          >> Jim
          >
          >--
          >Dimitri

Unable to launch application with java web start (OILOM)

I'm connecting to a remote Oracle console from a server, using "oracle integrated lights out manager". I go to "Remote Control" and click on "Launch Console". After that, it download a JNLP file, called "jnlpgenerator-16". I open it with Java7 -web starter- update 5.
After a while hanging I get this error:
Error: Unable to load resource: https://XXX.XXX.XXX.XX:443/Java/JavaRConsole.jar.
In Exception:
com.sun.deploy.net.FailedDownloadException: Unable to load resource: https://XXX.XXX.XXX.XXX:443/Java/JavaRConsole.jar
     at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
     at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
     at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
     at java.util.concurrent.FutureTask.run(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
In Wrapped Exception:
java.net.SocketException: SOCKS server general failure
     at java.net.SocksSocketImpl.connect(Unknown Source)
     at java.net.Socket.connect(Unknown Source)
     at sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
     at sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source)
     at sun.net.NetworkClient.doConnect(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
     at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
     at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
     at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
     at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
     at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
     at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
     at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
     at com.sun.javaws.LaunchDownload$DownloadTask.call(Unknown Source)
     at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
     at java.util.concurrent.FutureTask.run(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
It happens the same under Windows 7 and Linux -using openJRE and icedtea as substitution of Java Web Start-.
I'm behind a proxy. In my browser -Chrome, IE and FF- putted the info of the proxy and I can browse. Aldo tried to put the info in the Java "Network Settings". It did not work -the launching of the console-.
I installed the last Java Web Start in Windows 7 -Java7 Update5-. I disabled my anti-virus and firewall. Always the same result.
Could you help me please. I don't have idea of what is going on.
Greetings.
PD: I tested from other machines of the company and it works. So, I guess is my laptop. I exported the oracle certificates from those machine and imported them into mine.

AndrewThompson64 wrote:
I am not used to seeing references to a local server that do not include a port number.
E.G. http://localhost:8080/LottoMadness/
I have deployed the following HTML (HelpMe.html) to the web server:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
     <title>Untitled</title>
</head>
<body>
Help Me!
</body>
</html>When I attempt to render the URL in IE, I see the page just fine. The URL is use is:
http://localhost/LottoMadness/HelpMe.htmlSo, I think my web server setup and usage is ok.
>
As an aside, what happens if (your MS IIS is running and) you click a direct link to..
[http://localhost/LottoMadness/LottoMadness.jnlp|http://localhost/LottoMadness/LottoMadness.jnlp]
When I click this link I get the error and exception I cited in my previous post.

Database access with Jave Web Start

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