如何重新编译Java运行时环境（JRE）？(How to recompile Java Runtime Environment (JRE)?)

编程入门行业动态更新时间:2024-10-21 04:01:17

我觉得这很容易。我下载了JDK，解压缩了src.zip，修改了JDK以满足我的需求并保存了文件。

现在，我唯一需要做的就是将提取的和更新的src文件夹重新编译为“JRE”。我尝试使用javac，但没有得到任何结果。例如，我得到的错误是没有给出源文件。我很明显没有使用正确的语法来编译JRE。

那么，任何人都可以告诉我，你如何最终得到一个工作的“JRE”文件夹，其中包含一个基于从JDK中提取的新源文件夹的修改过的Java Runtime Environment？

注意：我不打算重新分发编译。仅供个人自用。

更新：感谢答案和http://www.javalobby.org/java/forums/t103334.html我得到以下命令： "c:\tmp\jdk1.6.0_17\bin\javac" -classpath "c:\tmp\out" -verbose -g -d "c:\tmp\out" -J-Xmx512m -cp "c:\jdk1.6.0_17\jre\lib\rt.jar";"c:\jdk1.6.0_17\lib\tools.jar" @files.txt - 遗憾的是，虽然它确实处理了事情，但完成后输出文件夹/ out为空。我的命令有问题吗？

提前致谢。

I thought this would be very easy. I downloaded the JDK, extracted src.zip, modified the JDK to fit my needs and saved the file.

Now, the only thing I need to do is recompile the extracted and update src folder to a "JRE". I tried using javac, but didn't get anywhere. For example, I got the error that no source files were given. I am obviousely not using the right syntax to compile the JRE.

So, can anyone tell me, how do you end up with a working "JRE" folder containing a modified Java Runtime Environment based on the new source folder extracted from the JDK?

Note: I am not going to redistribute the compilation. It is for personal self use only.

Update: thanks to an answer and http://www.javalobby.org/java/forums/t103334.html I got to the following command: "c:\tmp\jdk1.6.0_17\bin\javac" -classpath "c:\tmp\out" -verbose -g -d "c:\tmp\out" -J-Xmx512m -cp "c:\jdk1.6.0_17\jre\lib\rt.jar";"c:\jdk1.6.0_17\lib\tools.jar" @files.txt - unfortunately, while it does seem to process things, when finished the output folder /out is empty. Is something wrong with my command?

Thanks in advance.