Mac OS X 上没有 Java 源代码

发布于 2024-12-03 22:46:33 字数 2083 浏览 6 评论 0 原文

我认为我的 JDK 坏了。我使用的是 OS X 10.6.8。

我想在 Eclipse 等中调试时查看源代码，但是 Eclipse 找不到源代码，因此我查找了已安装的 JRE，并找到了标题为 JVM 1.6.0 (MacOS X Default)< 的路径/code>

/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home

在终端中，我进入目录 /System/Library/Frameworks/JavaVM.framework/Versions 并执行 ls -al：

drwxr-xr-x  13 root  wheel  442  8 Sep 22:46 .
drwxr-xr-x  12 root  wheel  408  8 Sep 22:46 ..
lrwxr-xr-x   1 root  wheel    5  8 Sep 22:45 1.3 -> 1.3.1
drwxr-xr-x   3 root  wheel  102 21 Jul  2009 1.3.1
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.4 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.4.2 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.5 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.5.0 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.6 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.6.0 -> CurrentJDK
drwxr-xr-x  10 root  wheel  340  8 Sep 22:46 A
lrwxr-xr-x   1 root  wheel    1  8 Sep 22:45 Current -> A
lrwxr-xr-x   1 root  wheel   59  8 Sep 22:45 CurrentJDK -> /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents

所以 Eclipse 已经链接了正确的 JDK 。另一个测试：

$ javac -version
javac 1.6.0_26

$ which javac
/usr/bin/javac

$ ls -al /usr/bin/ | grep javac
lrwxr-xr-x     1 root   wheel          75  8 Sep 22:45 javac -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/javac

所以一切看起来都很好，但是没有 rt.jar 或 src.jar 这是一个屏幕截图：

所以我尝试重新安装它。我访问 Apple 的网站并下载此软件包： Java for Mac OS X 10.6 Update 5 开发人员包，文件： javadeveloper_for_mac_os_x_10.6__10m3425.dmg。安装成功完成，但没有改变任何东西。

我在我的计算机上显示了最后修改的文件，这些只是一些java工具，位于usr/share/java/Tools

Java VisualVM
Jar Bundler
Applet Launcher

仍然没有rt.jar或src.jar在java主目录中。

原文

I think my JDK is broken. I am on OS X 10.6.8.

I want to look in the sources when debugging in Eclipse, etc, but Eclipse can't find the sources, so I looked up the installed JREs and found this path with the title JVM 1.6.0 (MacOS X Default)

/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home

In Terminal I went to the directory /System/Library/Frameworks/JavaVM.framework/Versions and executed ls -al:

drwxr-xr-x  13 root  wheel  442  8 Sep 22:46 .
drwxr-xr-x  12 root  wheel  408  8 Sep 22:46 ..
lrwxr-xr-x   1 root  wheel    5  8 Sep 22:45 1.3 -> 1.3.1
drwxr-xr-x   3 root  wheel  102 21 Jul  2009 1.3.1
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.4 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.4.2 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.5 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.5.0 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.6 -> CurrentJDK
lrwxr-xr-x   1 root  wheel   10  8 Sep 22:45 1.6.0 -> CurrentJDK
drwxr-xr-x  10 root  wheel  340  8 Sep 22:46 A
lrwxr-xr-x   1 root  wheel    1  8 Sep 22:45 Current -> A
lrwxr-xr-x   1 root  wheel   59  8 Sep 22:45 CurrentJDK -> /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents

So Eclipse already has the proper JDK linked.
Another test:

$ javac -version
javac 1.6.0_26

$ which javac
/usr/bin/javac

$ ls -al /usr/bin/ | grep javac
lrwxr-xr-x     1 root   wheel          75  8 Sep 22:45 javac -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/javac

So it all looks fine, but there is no rt.jar or src.jar Here is a screenshot:

A screenshot showing the jars in the current JDK.

So I try to reinstall it. I go to Apple's website and download this package: Java for Mac OS X 10.6 Update 5 Developer Package, file: javadeveloper_for_mac_os_x_10.6__10m3425.dmg.
The installation finished successfully, but it doesn't change anything.

I show the last modified files on my computer, these are only some java tools, located in usr/share/java/Tools

Java VisualVM
Jar Bundler
Applet Launcher

There still is no rt.jar or src.jar in the java home directory.

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甜妞爱困 2024-12-10 22:46:33

注意：这个答案是旧的，并且适用于 Apple Java 6。对于 Oracle Java，您需要下载 JDK，因为它包含 src.zip。

默认 Java 下载中不包含源代码。您需要另外安装 ADC 提供的相应开发包。

此外，Eclipse 尚未学会如何查找 src.zip 文件，并且对话无法查看包内部。

在我的 10.7 上，上述安装将 src.zip 放入 /Library/Java/JavaVirtualMachines/1.6.0_26-b03-383.jdk/Contents/Home/src.jar

回复收藏 0 原文

回眸一笑 2024-12-10 22:46:33

来自： http://lookfirst.com /2011/03/fix-missing-source-for-java-mac-os-x.html（根据需要调整版本号和路径）

转到http://connect.apple.com 并下载 Java for Mac OS X 10.6 Update 4 Developer Package
安装它。
打开 Terminal.app 窗口
cd /System/Library/Frameworks/JavaVM.framework/Home
sudo ln -s /Library/Java/JavaVirtualMachines/1.6.0_24-b07-334.jdk/Contents/Home/src.jar 。
sudo ln -s /Library/Java/JavaVirtualMachines/1.6.0_24-b07-334.jdk/Contents/Home/docs.jar 。