After uninstalling some applications from my Mac OSX, I found the applications that depends on JRE totally does not work. I noticed below symptoms,

1. Eclipse Mars can not be launched, even though I specified the launching vm to another one(`java -version` still work). The SWT native library failed to resolve the …

The problem came from I tried to set up send mail server(SMTP) for my Gerrit server. My Gerrit server is using OpenID for user authorization, so I registered a new email account to send notification from Gerrit.

Most of email service providers require the secure authorization when using its SMTP server to send mail. …

I did sign the jars via reusing the existing certificate of Windows code signing several months ago. Writing it down for further reference.

Whatever your purpose of reusing the existing Windows code certificate, I only document the way from technical perspective.

After buying the certificate of Windows code signing …

java程序开发中经常用到JNI调用本地library, 同时又希望将library同class文件编译成一个jar文件以方便deploy.

但是JDK的classloader不支持从jar文件中加载library, 一个变通的方法就是jar里的library以临时文件的方式写到临时目录或java.library目录.

附上两篇文档链接 :

**Load Library inside a jar file
**

使用JNI时，装载本地库的小技巧