Java 问题让我发疯

Question

当我尝试打开特定的 .jnlp 文件时出现此错误：

net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize application. The application has not been initialized, for more information execute javaws from the command line.
    at net.sourceforge.jnlp.Launcher.createApplication(Launcher.java:813)
    at net.sourceforge.jnlp.Launcher.launchApplication(Launcher.java:532)
    at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:936)
Caused by: net.sourceforge.jnlp.LaunchException: Fatal: Application Error: Cannot grant permissions to unsigned jars. Application requested security permissions, but jars are not signed.
    at net.sourceforge.jnlp.runtime.JNLPClassLoader$SecurityDelegateImpl.getClassLoaderSecurity(JNLPClassLoader.java:2393)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.setSecurity(JNLPClassLoader.java:321)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:734)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.<init>(JNLPClassLoader.java:285)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.createInstance(JNLPClassLoader.java:357)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:429)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:403)
    at net.sourceforge.jnlp.Launcher.createApplication(Launcher.java:805)
    ... 2 more

该文件用于访问 Cisco ASA 的 ASDM，它一直运行良好，直到昨天……我正在使用另外 4 个类似的文件（因为我有 5 个 ASA），并且这些文件运行良好。

有人可以帮我吗？？提前致谢。

BR。

---

也谢谢你@ryekayo，这是我从命令行得到的：

gaspar@gaspar-Lenovo-ideapad-310-15ISK ~ $ javaws https://192.168.0.5/admin/public/asdm.jnlp
OpenJDK 64-Bit Server VM warning: NewSize (1536k) is greater than the MaxNewSize (1024k). A new max generation size of 1536k will be used.
netx: Initialization Error: Could not initialize application. (Fatal: Application Error: Cannot grant permissions to unsigned jars. Application requested security permissions, but jars are not signed.)
net.sourceforge.jnlp.LaunchException: Fatal: Initialization Error: Could not initialize application. The application has not been initialized, for more information execute javaws from the command line.
    at net.sourceforge.jnlp.Launcher.createApplication(Launcher.java:813)
    at net.sourceforge.jnlp.Launcher.launchApplication(Launcher.java:532)
    at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:936)
Caused by: net.sourceforge.jnlp.LaunchException: Fatal: Application Error: Cannot grant permissions to unsigned jars. Application requested security permissions, but jars are not signed.
    at net.sourceforge.jnlp.runtime.JNLPClassLoader$SecurityDelegateImpl.getClassLoaderSecurity(JNLPClassLoader.java:2393)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.setSecurity(JNLPClassLoader.java:321)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.initializeResources(JNLPClassLoader.java:734)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.<init>(JNLPClassLoader.java:285)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.createInstance(JNLPClassLoader.java:357)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:429)
    at net.sourceforge.jnlp.runtime.JNLPClassLoader.getInstance(JNLPClassLoader.java:403)
    at net.sourceforge.jnlp.Launcher.createApplication(Launcher.java:805)
    ... 2 more

Answer 1

从我用来修复 Cisco ASDM 问题的 iDrac 解决方案中复制此内容，发现它有效。

https://velenux.wordpress.com/2017/06/07/workaround-for-javaws-jnpl-error-cannot-grant-permissions-to-unsigned-jars/

您收到如下错误：

net.sourceforge.jnlp.LaunchException: Fatal: Application Error: Cannot grant permissions to unsigned jars.

快速解决方法：

找到 java.security 文件。就我而言，它位于/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/java.security

然后找到行：

jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024

注释掉，复制，删除MD5字符串。

#jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024
jdk.jar.disabledAlgorithms=MD2, RSA keySize < 1024

保存文件。再试一次。它应该有效。