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确保存在JavaX包

[英]Ensuring that JavaX Package is Present

原文 2016-01-16 21:45:10 5 1 java/ compatibility

My copy of Java 8 on OS X has the javax package. 我在OS X上的Java 8副本具有javax软件包。

My copy of Java 8 on Debian/Ubuntu (Linux Mint) does not. 我在Debian / Ubuntu（Linux Mint）上的Java 8副本没有。

Exception in thread "main" java.lang.NoClassDefFoundError: javax/vecmath/Point3f 线程“主”中的异常java.lang.NoClassDefFoundError：javax / vecmath / Point3f

How could I get hold of a portable version ( JAR ) that contains this package and include it if it doesn't exist at run time? 如果运行时不存在包含此软件包的可移植版本（ JAR ），并包含它，我该如何把握呢？

Is there a better solution? 有更好的解决方案吗？

1 个解决方案

The problem isn't that javax is missing; 问题不在于缺少javax 。 on your Debian installation you should have most of its libraries such as Swing and javax.crypto . 在Debian安装上，您应该拥有其大多数库，例如Swing和javax.crypto 。 What you are missing is Java 3D, a library that does not come with every java installation. 您缺少的是Java 3D，它不是每个Java安装都附带的库。 You should be able download the Java 3D API here , and then you will have Point3f and the other classes in javax.vecmath . 您应该可以在这里下载Java 3D API，然后在javax.vecmath拥有Point3f和其他类。