Question

我有一个企业级Java应用程序，它有大量的jars，通过jnlp文件下载到客户端的jvm缓存中。当我启动应用程序时，我在Java控制台上获得以下堆栈跟踪：

        Exception in thread "AWT-EventQueue-1" java.lang.NullPointerException
at com.sun.deploy.ui.DialogTemplate.imageAvailable(Unknown Source)
at com.sun.deploy.ui.DialogTemplate.finalImageAvailable(Unknown Source)
at com.sun.deploy.ui.ImageLoader$2.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(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.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)
       Exception in thread "AWT-EventQueue-1" java.lang.NullPointerException
at com.sun.deploy.ui.DialogTemplate.imageAvailable(Unknown Source)
at com.sun.deploy.ui.DialogTemplate.finalImageAvailable(Unknown Source)
at com.sun.deploy.ui.ImageLoader$2.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$200(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.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)
    #### Java Web Start Error:
    #### The Java security settings have prevented this application from running. You may change this behavior in the Java Control Panel.

我的JNLP文件如下所示，带有一些删失的描述：

<?xml version="1.0" encoding="utf-8"?>
<jnlp spec="1.0+" codebase="http://10.100.10.9/ikarusdelhitest/" href="ikarus.jnlp">
<information>
    <title>ikarus</title>
    <vendor>my company</vendor>
    <homepage href="http://www.mycompanyaddress.com" />
    <description>My enterprise java ee swing application</description>
    <icon href="ikarus.jpg" />
    <offline-allowed />
</information>
<security>
    <all-permissions />
</security> 
<resources> 
    <jar href="jars/ikarus/ikarusClient.jar" />
    <jar href="jars/ikarus/ikarusDelegators.jar" />
    <jar href="jars/ikarus/clientRules.jar" />
    <jar href="jars/ikarus/ruleImps.jar" />
    <jar href="jars/ikarus/ikarusUtil.jar" />
    <jar href="jars/ikarus/ikarusResources.jar" />
    <jar href="jars/ikarus/domain.jar" />
    <jar href="jars/ikarus/domain_repository.jar" />
    <jar href="jars/ikarus/domain_service.jar" />
    <jar href="jars/ikarus/app_repository.jar" />
    <jar href="jars/ikarus/app_service.jar" />
    <jar href="jars/ikarus/infrastructure.jar" />
    <jar href="jars/ikarus/integration_domain.jar" />
    <jar href="jars/jboss_ejb_auth/ejb3-persistence.jar" />
    <jar href="jars/jboss_ejb_auth/jboss-ejb3x.jar" />
    <jar href="jars/jboss_ejb_auth/jbossall-client.jar" />
    <jar href="jars/jasper/commons-beanutils-1.8.0.jar" />
    <jar href="jars/jasper/commons-collections-3.2.1.jar" />
    <jar href="jars/jasper/commons-digester-1.7.jar" />
    <jar href="jars/jasper/commons-logging-1.1.jar" />
    <jar href="jars/jasper/iText-2.1.0.jar" />
    <jar href="jars/jasper/jasperreports-3.6.0.jar" />
    <jar href="jars/jasper/poi-3.2-FINAL-20081019.jar" />
    <property name="jnlp.localization" value="Delhi"/>
</resources>
<application-desc main-class="com.celebi.ikarus.main.Ikarus" />

另请注意，我在更多信息面板上获得了一些不同的异常详细信息：

com.sun.deploy.security.BlockedException: The Java security settings have prevented this application from running. You may change this behavior in the Java Control Panel.
at com.sun.deploy.security.SandboxSecurity.showBlockedDialog(Unknown Source)
at com.sun.javaws.security.AppPolicy.grantUnrestrictedAccess(Unknown Source)
at com.sun.javaws.security.AppPolicy.addPermissions(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.getTrustedCodeSources(Unknown Source)
at com.sun.deploy.security.CPCallbackHandler$ParentCallback.strategy(Unknown Source)
at com.sun.deploy.security.CPCallbackHandler$ParentCallback.openClassPathElement(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.getJarFile(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.access$1000(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.ensureOpen(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$JarLoader.<init>(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getLoader(Unknown Source)
at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(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)
Caused by: java.lang.SecurityException: Invalid Permissions value: all-permissions  
at com.sun.deploy.security.DeployManifestChecker.verify(Unknown Source)
at com.sun.deploy.security.DeployManifestChecker.verify(Unknown Source)
... 39 more

我对java控制面板的安全性没有任何安全限制。它的中等水平如下： here

感谢您的帮助

新编辑：当我尝试从jvm 1.6机器运行此jnlp时，我获得了更多解释性堆栈跟踪，如下所示：

java.lang.NoClassDefFoundError: javax/ejb/EJBAccessException
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getMethod0(Unknown Source)
at java.lang.Class.getMethod(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)
Caused by: java.lang.ClassNotFoundException: javax.ejb.EJBAccessException
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)

Answer 1

我通过进入Java控制面板（开始菜单＆gt;所有程序＆gt; Java＆gt;配置Java）并在安全编辑站点列表中添加两个URL来修复此问题。

http://code.google.com

http://androidscreencast.googlecode.com

对于Mac系统偏好设置＆gt;爪哇

在哪里添加这些网站

Java控制面板＆gt;安全选项卡＆gt;编辑网站列表＆gt;添加＆gt;申请＆gt;好 enter image description here

Answer 2

我建议您启用跟踪和日志记录，请参阅此处：

enter image description here

然后从命令行运行应用程序。

javaws -verbose AppName.jnlp

然后您可以检查存储在此路径中的日志和跟踪文件中的线索

\Documents and Settings\<USERNAME>\Application Data\Sun\Java\Deployment\log

img来源：

http://www.cisco.com/c/en/us/support/docs/security/hostscan/117097-trouble-java7-00.html

Answer 3

我尝试添加项目文件：/ 并且正常工作。

Answer 4

我们在Java 1.8u60中看到了这个问题，这是由JNLP文件中图标的死引用引起的。以前丢失的图标被忽略了，但现在我们看到问题中的堆栈跟踪失败了。删除对图标的引用解决了我们的问题。

以下是我们删除的两个引用：

<icon href="ORCL.jpg" kind="splash"/>
<icon href="ORCS.jpg" kind="default"/>

希望有所帮助。

Answer 5

我有一个非常类似的问题（Correctly signed JNLP application prevented from running in Java 7）

我通过确保

来修复它

我使用1.7编译
我更新了我的JNLP文件以强制执行1.7

＆LT;资源＆GT;
＆lt; j2se version =“1.7 *”java-vm-args =“ - Xmx32m”max-heap-size =“32m”href =“http://java.sun.com/products/autodl/j2se”/＆gt;

Answer 6

您也可以尝试启用java的高级选项卡下的复选框（在控制面板中），并勾选JNLP文件部分下的始终允许选项

Answer 7

在 Arch Linux 系统上，我发现可以在/opt/java7/jre/bin/ControlPanel（jcontrol的符号链接）访问 Java控制面板。通过运行它，我能够访问安全选项卡，然后将安全级别调低到中等。然后我提示在开始/opt/java7/bin/javaws之类的事情时接受安全警告。

Java jnlp应用程序被安全设置阻止

7 个答案: