Java Web Start is not working

Question

I have been working on a Java project. It is now over but Java Web start is not working. I compile the program and put dist files in my Tomcat Server. I want clients to download my program and use as a desktop application.

I can run the program inside Netbeans IDE just fine, however when I try it using .jnlp file it is giving errors. Until a while ago I managed to run the program using jnlp, somehow it is giving below errors. I can still run the program with executable jar but I desperately need to use Java Web Start.

 `Exception in thread "Abandoned connection cleanup thread" java.security.AccessControlException: access denied ("java.lang.RuntimePermission" "setContextClassLoader")
    at java.security.AccessControlContext.checkPermission(Unknown Source)
    at java.security.AccessController.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPermission(Unknown Source)
    at com.sun.javaws.security.JavaWebStartSecurity.checkPermission(Unknown Source)
    at java.lang.Thread.setContextClassLoader(Unknown Source)
    at com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:38)
Exception in thread "AWT-EventQueue-2" java.lang.ExceptionInInitializerError
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:298)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at dbo.dealSave.user(dealSave.java:364)
    at TradeX.uyegiris.jButton1ActionPerformed(uyegiris.java:177)
    at TradeX.uyegiris.access$100(uyegiris.java:20)
    at TradeX.uyegiris$2.actionPerformed(uyegiris.java:81)
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
    at java.awt.Component.processMouseEvent(Unknown Source)
    at javax.swing.JComponent.processMouseEvent(Unknown Source)
    at java.awt.Component.processEvent(Unknown Source)
    at java.awt.Container.processEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Window.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$400(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue$4.run(Unknown Source)
    at java.awt.EventQueue$4.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.security.AccessControlException: access denied ("java.util.PropertyPermission" "file.encoding" "read")
    at java.security.AccessControlContext.checkPermission(Unknown Source)
    at java.security.AccessController.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPermission(Unknown Source)
    at com.sun.javaws.security.JavaWebStartSecurity.checkPermission(Unknown Source)
    at java.lang.SecurityManager.checkPropertyAccess(Unknown Source)
    at java.lang.System.getProperty(Unknown Source)
    at com.mysql.jdbc.StringUtils.<clinit>(StringUtils.java:70)
    ... 43 more
`

Below is the jnlp file. Sorry it is too long. I can provide additional information.

`<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<jnlp codebase="http://192.168.0.162:9999/" href="launch.jnlp" spec="1.0+">
    <information>
        <title>Unit Elektrik Trader Team</title>
        <vendor>seckin.celik</vendor>
        <homepage href=""/>
        <description>Versiyon 1</description>
        <description kind="short">Unit Elektrik Trader Team</description>
    <offline-allowed/>
</information>
    <update check="background"/>
    <resources>
        <j2se version="1.7+"/>
        <jar href="Trade.jar" main="true"/>
    <jar href="lib/jxl.jar"/>
<jar href="lib/swingx-all-1.6.4.jar"/>
<jar href="lib/mysql-connector-java-5.1.23-bin.jar"/>
<jar href="lib/AbsoluteLayout.jar"/>
<jar href="lib/beansbinding-1.2.1.jar"/>
<jar href="lib/antlr-2.7.6.jar"/>
<jar href="lib/cglib-2.2.jar"/>
<jar href="lib/commons-collections-3.1.jar"/>
<jar href="lib/dom4j-1.6.1.jar"/>
<jar href="lib/jta-1.1.jar"/>
<jar href="lib/hibernate-core-3.6.10.Final.jar"/>
<jar href="lib/hibernate-commons-annotations-3.2.0.Final.jar"/>
<jar href="lib/hibernate-entitymanager-3.6.10.Final.jar"/>
<jar href="lib/hibernate-tools-3.6.0.CR1.jar"/>
<jar href="lib/javassist-3.12.0.GA.jar"/>
<jar href="lib/c3p0-0.9.1.jar"/>
<jar href="lib/oscache-2.1.jar"/>
<jar href="lib/slf4j-api-1.6.1.jar"/>
<jar href="lib/slf4j-simple-1.6.1.jar"/>
<jar href="lib/hibernate-jpa-2.0-api-1.0.1.Final.jar"/>
<jar href="lib/dom4j-1.6.1.jar"/>
<jar href="lib/antlr-2.7.6.jar"/>
<jar href="lib/cglib-2.2.jar"/>
<jar href="lib/commons-collections-3.1.jar"/>
<jar href="lib/jta-1.1.jar"/>
<jar href="lib/hibernate-core-3.6.10.Final.jar"/>
<jar href="lib/hibernate-commons-annotations-3.2.0.Final.jar"/>
<jar href="lib/hibernate-entitymanager-3.6.10.Final.jar"/>
<jar href="lib/hibernate-tools-3.6.0.CR1.jar"/>
<jar href="lib/javassist-3.12.0.GA.jar"/>
<jar href="lib/c3p0-0.9.1.jar"/>
<jar href="lib/oscache-2.1.jar"/>
<jar href="lib/slf4j-api-1.6.1.jar"/>
<jar href="lib/slf4j-simple-1.6.1.jar"/>
<jar href="lib/jaxb-impl.jar"/>
<jar href="lib/jaxb-xjc.jar"/>
<jar href="lib/FastInfoset.jar"/>
<jar href="lib/gmbal-api-only.jar"/>
<jar href="lib/ha-api.jar"/>
<jar href="lib/javax.mail_1.4.jar"/>
<jar href="lib/jaxws-rt.jar"/>
<jar href="lib/jaxws-tools.jar"/>
<jar href="lib/management-api.jar"/>
<jar href="lib/mimepull.jar"/>
<jar href="lib/policy.jar"/>
<jar href="lib/saaj-impl.jar"/>
<jar href="lib/stax-ex.jar"/>
<jar href="lib/stax2-api.jar"/>
<jar href="lib/streambuffer.jar"/>
<jar href="lib/woodstox-core-asl.jar"/>
<jar href="lib/jaxws-api.jar"/>
<jar href="lib/jsr181-api.jar"/>
<jar href="lib/javax.annotation.jar"/>
<jar href="lib/saaj-api.jar"/>
<jar href="lib/activation.jar"/>
<jar href="lib/jaxb-api.jar"/>
<jar href="lib/jsr173_1.0_api.jar"/>
</resources>
    <application-desc main-class="TradeX.uyegiris">
    </application-desc>
</jnlp>`

Answer 1

As the Error points out, you have problems with permission.
(Caused by: java.security.AccessControlException: access denied ("java.util.PropertyPermission" "file.encoding" "read"))

Further, you are missing the security -Tag in your JNLP:

<?xml version="1.0" encoding="utf-8"?> 
<jnlp spec="1.0+" codebase="http://localhost:8585/" href="Test.jnlp">
    <information>
        <title>Jnlp Test</title>
        <vendor>Test</vendor>
        <homepage href="http://localhost:8585/" />
        <description>Test</description>
    </information>
    <security>
        <all-permissions/> <!-- SEE HERE FOR EXAMPLE --!>
    </security>
    <resources>
        <j2se version="1.6+" />
        <jar href="TestJnlp.jar" />
    </resources>
    <application-desc main-class="com.test.TestJnlp" />
</jnlp>

IMPORTANT EDIT :
As of Java 7u51, there are some changes in security!
you may check following:
https://blogs.oracle.com/java-platform-group/entry/new_security_requirements_for_rias

Persmission-Info also needs to be added to META-INF/MANIFEST.MF !

Answer 2

By default a java web start application runs in a sandbox (like an Applet). The error seems to come from a missing permission to read the file.encoding system property. You need to define in your jnlp the level of permission that your application needs. Adding the following element should fix your permission problem.

<security>
    <all-permissions/>
</security>