Java 8:两个类都实现了JavaLaunchHelper

I'm trying to launch Cassandra and I'm running into an issue with JavaLaunchHelper being located in two places. I'm running Java 8. Here's the exact error:

我正在尝试启动Cassandra，我遇到了一个问题，JavaLaunchHelper位于两个位置。我运行Java 8。这是确切的错误:

objc[413]: Class JavaLaunchHelper is implemented in both
/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home/bin/java and 
/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home/jre/lib/libinstrument.dylib. 
One of the two will be used. Which one is undefined.

Found a similar question for Java 7:

Java 7发现了一个类似的问题:

Class JavaLaunchHelper is implemented in both. One of the two will be used. Which one is undefined

类JavaLaunchHelper是在这两个类中实现的。两者中的一个将被使用。哪一个是未定义的

What's the best way to go about solving this?

解决这个问题最好的办法是什么?

5 个解决方案

#1

This is a bug in the JDK and is still not fixed (as of 8u25). See more info here.

这是JDK中的一个bug，并且仍然没有修复(从8u25开始)。在这里看到更多的信息。

#2

Shouldn't be a problem, just an annoying message. But Cassandra hasn't been verified against java 8 yet, so you may see some strangeness.

应该不是问题，只是一个烦人的信息。但是Cassandra还没有被java 8验证，所以您可能会看到一些奇怪的东西。

#3

You must go to Preferences/Build, Execution, Deployment/Debugger and disable the option: "Force Classic VM for JDK 1.3.x and earlier" This works for me

您必须访问首选项/构建、执行、部署/调试器，并禁用选项:“为JDK 1.3强制使用经典VM。”这对我来说很有效。

#4

put lines to files ~/.bashrc (or/and ~/.zshrc) and save

将行放到文件中~/。bashrc (or/and ~/.zshrc)和save

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_92.jdk/Contents/Home 
export PATH=$JAVA_HOME/bin:$PATH

and then restart (logout/login) terminal (IDE)

然后重新启动(注销/登录)终端(IDE)

#5

Two steps fix this problem:

解决这个问题的两个步骤:

1.Navigate to /Library/Internet Plug-Ins and remove the JavaAppletPlugin.plugin directory.

1。导航到/Library/Internet插件并删除JavaAppletPlugin。插件目录中。

2.Navigate to /Library/PreferencePanes and remove JavaControlPanel.prefpane.

2。导航到/Library/PreferencePanes并删除JavaControlPanel.prefpane。

Essentially, do one thing: uninstall jre !

基本上，做一件事:卸载jre !

#1