I have typed javaws url_of_jnlp in my CMD under windows 7, but i got the following error:-
CouldNotLoadArgumentException[ Could not load file/URL specified: url_of_jnlp]
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Thread.java:722)
I have noticed this problem since i need java web start to be able to run an application, but when i tired to run this application , i will be asked to save a file named webstart.jnlp , instead of automatically lunching the java web start.
So what might be the problem?
You need to replace url_of_jnlp with the actual url of the jnlp file of the application.
This will not work: javaws url_of_jnlp
This will work: javaws "C:\..[Path to folder]..\My_Application.jnlp"
You should really have found this info yourself, it is available at the bottom of this page:
http://www.java.com/en/download/faq/java_webstart.xml
See this page for info on command line options for javaws: http://docs.oracle.com/javase/1.5.0/docs/guide/javaws/developersguide/javaws.html
Check the following links to make sure everything is perfect in your setup.
Common Java Web Start Problems
Deploying Java Web Start Applications
Hope it helps.
Related
I built a small test Java EE Entreprise Application using NetBeans. Everything works fine in NetBeans (version 7.3) when I run/debug it.
I'm now trying to deploy the test app using WebStart. To do so, I have setup a GlassFish server of the same version that is in NetBeans (GF 3.1.2.2) and I have the JDK Version 7 U 51 installed on the machine. For right now, I'm trying to run the WebStart app on the same machine that GlassFish is on so I'm guessing it's using JRE 7U51 also.
However, when I launch the client application from within GlassFish admin page (app deployed fine), I get a NullPointerException.
Here's the full exception trace:
java.lang.NullPointerException
at java.io.StringReader.<init>(Unknown Source)
at org.glassfish.appclient.client.JWSAppClientContainerMain.insertMaskingLoader(JWSAppClientContainerMain.java:186)
at org.glassfish.appclient.client.JWSAppClientContainerMain.main(JWSAppClientContainerMain.java:132)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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)
Here's the JNPL file I get from GlassFish when I want to WebStart the application:
http://pastebin.com/HPddJA3a
Please note that the JNPL file is autogenerated by GlassFish... my EAR doesn't contain one.
This is my first deployment and I've tried many things.... please help! :)
EDIT: More details on how I deploy and access the client app:
I uploaded the EAR file to Glassfish using the admin console (port 4848) and that deployment is successful (no error messages). Then, in the admin console, I see all my EE components (EJB, app jar, etc) and I can launch the client app. This just links to the following URL: http://server-test.com:8080/EEAppTest/EEAppTestEEClient (not a real URL). When I access it, I get the NullPointerException described above.
I have a Java servlet application developed and on my develpment PC everything works as expected including using SFTP programmatically to copy over a PDF using HTTPS on port 8443 etc and with SSL certificates in place too.
However, when I attempt to run the application on the Live server I receive the error;
java.lang.NoClassDefFoundError: Could not initialize class javax.crypto.SunJCE_b
On investigation, some are suggesting check the jce.jar. But I have ensured the jce.jar is present and also created a "lib" folder in my project and copied the jar there and placed the jar on my build path but still the problem exists.
How do I resolve this please? Thanks in advance. Here is the console output from right after Tomcat has started the application;
#
08-Jan-2014 10:45:44 org.apache.catalina.startup.Catalina start
INFO: Server startup in 12715 ms
08-Jan-2014 10:47:42 org.apache.tomcat.util.net.NioEndpoint$SocketProcessor run
SEVERE:
java.lang.NoClassDefFoundError: Could not initialize class javax.crypto.SunJCE_b
at javax.crypto.Cipher.getInstance(DashoA13*..)
at com.sun.net.ssl.internal.ssl.JsseJce.getCipher(Unknown Source)
at com.sun.net.ssl.internal.ssl.RSAClientKeyExchange.<init>(Unknown Source)
at com.sun.net.ssl.internal.ssl.ServerHandshaker.processMessage(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown Source)
at com.sun.net.ssl.internal.ssl.Handshaker$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.net.ssl.internal.ssl.Handshaker$DelegatedTask.run(Unknown Source)
at org.apache.tomcat.util.net.SecureNioChannel.tasks(SecureNioChannel.java:285)
at org.apache.tomcat.util.net.SecureNioChannel.handshakeUnwrap
(SecureNioChannel.java:343)
at org.apache.tomcat.util.net.SecureNioChannel.handshake
(SecureNioChannel.java:193)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run
(NioEndpoint.java:1642)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
The jce.jar must be inside the folder WEB-INF/lib of the deployed web application.
I've seen this problem pop up very often and there seems to be a lot of confusion around it. The actual reason this is happening is because the JRE you are using to run your application has been set up with the unrestricted JCE policy jars inside its jre/lib folder (inside your jdk install folder).
If your current project does not need these, then you can move then out of this folder temporarily. This will remove the requirement on the jce libraries and you will no longer see this error.
Hope this helps.
I have an application acting as a client to a JAX-WS server. The connection works fine if I deploy the application directly by placing the war into the tomcat webapps directory (even if doing a hot deploy). However if I undeploy, then redeploy the application using the tomcat manager (from an automated script) I get the exception below thrown anytime it attempts to establish a connection.
Caused by: java.lang.NullPointerException
at com.ctc.wstx.util.SymbolTable.copyArrays(SymbolTable.java:574)
at com.ctc.wstx.util.SymbolTable.findSymbol(SymbolTable.java:403)
at com.ctc.wstx.sr.StreamScanner.parseLocalName(StreamScanner.java:1770)
at com.ctc.wstx.sr.BasicStreamReader.handleStartElem(BasicStreamReader.java:2914)
at com.ctc.wstx.sr.BasicStreamReader.handleRootElem(BasicStreamReader.java:2093)
at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2073)
at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1069)
at com.sun.xml.internal.ws.util.xml.XMLStreamReaderFilter.next(Unknown Source)
at com.sun.xml.internal.ws.streaming.XMLStreamReaderUtil.next(Unknown Source)
at com.sun.xml.internal.ws.streaming.XMLStreamReaderUtil.nextContent(Unknown Source)
at com.sun.xml.internal.ws.streaming.XMLStreamReaderUtil.nextElementContent(Unknown Source)
at com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.hasWSDLDefinitions(Unknown Source)
at com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.parse(Unknown Source)
at com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.parse(Unknown Source)
at com.sun.xml.internal.ws.client.WSServiceDelegate.parseWSDL(Unknown Source)
at com.sun.xml.internal.ws.client.WSServiceDelegate.<init>(Unknown Source)
at com.sun.xml.internal.ws.client.WSServiceDelegate.<init>(Unknown Source)
at com.sun.xml.internal.ws.spi.ProviderImpl.createServiceDelegate(Unknown Source)
[... continues into application specific code calling the service ...]
This post showed up here in a search with someone having a similar problem, but had no resolution other than to use spring-ws which isn't really an option for me at the moment.
Has anyone run into this before and been able to resolve the issue? I'm a bit puzzled by what is going on here to make deployment via the tomcat manager different than deploying by placing the files in webapps.
I also encountered this issue. The problem was that I had a dependency on cxf-rt-frontend-jaxws-2.5.2.jar in my classpath, which contains an implementation of org.apache.cxf.jaxws.spi.ProviderImpl that conflicts with the same class in rt.jar that comes with the JDK.
Later versions of cxf-rt-frontend-jaxws no longer contain this class. After upgrading to cxf-rt-frontend-jaxws-2.6.15.jar, the problem was resolved.
I expect that the problem occurs intermittently because the classloader would randomly choose which implementation of ProviderImpl to use each time the WAR is deployed.
In my case, the problem was on SymbolTable class, which was both on com.sun.org.apache.xerces.internal.util.SymbolTable (from rt.jar) and com.ctc.wstx.util.SymbolTable (from wstx-asl-3.2.7.jar). After removing wstx-asl lib from my classpath we made redeployment via tomcat manager with no errors.
I want to configure web application to JProfiler 7.1.2. Below are details which I carried out while configuring the session.
Web Server: Tomcat 5.0
Operating System: Windows XP
We have selected session type as "Web Start".
In Web Start settings section, How to select URL of JNLP file?
(we could not find out JNLP file).
Also we have selected Java VM as a "Oracle JRE 1.6.0_22".
We have configured Class Path.
After clicking OK after some time it shows application error as "Unable to launch application".
It shows error details as follows
CouldNotLoadArgumentException[ Could not load file/URL specified: D:\jakarta-tomcat-5.0.19\conf]
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
One more question, How can I add my project classes? I can not see project class file in Memory Views --> Agreegation Level --> Classes
Please guide me.
Awaiting reply
"Java Web start" has nothing to do with web applications. To profile Tomcat, invoke
Session->Integration Wizards->New Server Integration
and follow the steps in the wizard.
Sorry for this question but I'm a newbie to Java. I tried searching for similar problems, and I did find some answers, but none worked in my case, so here it goes:
I'm trying to load a java applet on a web page. The applet is supposed to be loaded from a .jar file (UCFApplet.jar), but I cannot get it to load no matter what.
Here's the html for the applet:
<applet id="UCFApplet" height="200" width="200"
code="com.fujitsu.test.applet.UCFApplet"
archive="UCFApplet.jar">
</applet>
The jar file is on the server, on the same folder than the html file that is trying to load it. Inside the jar file there's a UCFApplet.class file on com/fujitsu/test/applet folder.
The error I'm getting on the Java console is the following:
Java Plug-in 1.6.0_29
Using JRE version 1.6.0_29-b11 Java HotSpot(TM) Client VM
User home directory = C:\Users\PTMAIAJ
----------------------------------------------------
c: clear console window
f: finalize objects on finalization queue
g: garbage collect
h: display this help message
l: dump classloader list
m: print memory usage
o: trigger logging
q: hide console
r: reload policy configuration
s: dump system and deployment properties
t: dump thread list
v: dump thread stack
x: clear classloader cache
0-5: set trace level to <n>
----------------------------------------------------
load: class com.fujitsu.test.applet.UCFApplet not found.
java.lang.ClassNotFoundException: com.fujitsu.test.applet.UCFApplet
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception: java.lang.ClassNotFoundException: com.fujitsu.test.applet.UCFApplet
As you can see, I'm using jre 1.6.0_29 build 11, which, from what I get on the Oracle page, is the latest build. This happens on all browsers (IE 9, FF, Chrome).
I suspect it may have something to do with not being able to access the .jar file because if I change the html code to a dummy name such as archive="thisFileDoesNotExist.jar" it gives me the same error. But I don't really know what to put there in order to make it work.
Any idea about what I can be doing wrong ?
Thank you and best regards,
Joao Maia
Your descriptor seems to be correct, so try the following.
First check that browser can download the jar. Type the direct URL to jar file into your browser. For example if your html can be accessed by typing
http://localhost/myapp/mypage.html
type
http://localhost/myapp/UCFApplet.jar
If you can download the jar and it is identical to your jar continue.
Check the jar itself. Type in command line
jar vft UCFApplet.jar
and see output. You should be able to find your class:
/com/fujitsu/test/applet/UCFApplet.class
BTW do you know that applet tag is deprecated and is not supported by Opera and Chrome? To support all browsers you should use tag object
Try turning on tracing in the java control panel. It will then produce a log file in the following path that may help:
%USERPROFILE%\AppData\LocalLow\sun\java\Deployment\log
In my case I had an error which only appeared when I turned on tracing, and which presented as simply a "ClassNotFoundException":
java.util.zip.ZipException: duplicate entry: META-INF/LICENSE.txt
The applet loader was rejecting the jar because the zip file had a duplicate file entry. Strangely appletviewer.exe was able to load and run this jar fine.
For those of you running behind a corporate proxy. According Oracle ClassNotFoundException is "a common error that is seen if the proxy settings are not correct".
See: How do I configure proxy settings for Java?