Things happened in my life

I've uploaded a PKGBUILD for ibus-unikey to the ArchLinux AUR. You can install it with yaourt like this:

yaourt -S ibus-unikey

If you don't want to build from the source, you have to install all the dependencies first:

pacman -Sy gcc gconf gtk2

And then download and install the binary package
Then add the following to your .bash_profile

export XMODIFIERS=@im=ibus
export GTK_IM_MODULE=ibus
export QT_IM_MODULE=ibus

PS: Ok, there is no spyware/malware/rootkit in this binary package! If you don't trust me, don't use this method and build the package yourself (this is the way I recommend)

I've just joined a project as a freelancer to customize a commercial e-commerce solution (so let called it EP). OOTB, the email sending of EP does not support authentication, which is a weird thing for such a cool product like that. Actually, EP does declare an JNDI mail session in the context, but in the code they don't use it. With the source code of EP in hand, things get much easier. First, we declare a JNDI resource in our application context (either in your context file in the conf/Catalina/localhost/ or in your context.xml under META-INF inside your war):

<context>
<Resource name="mail/Session" auth="Container"
    type="javax.mail.Session"
    username="my.smtp.user"
    password="my-secret"
    mail.debug="false"
    mail.transport.protocol="smtp"
    mail.smtp.host= "xxx.xxx.xxx.xxx"
    mail.smtp.auth= "true"
    mail.smtp.port= "25"
    mail.smtp.starttls.enable="true"
    description="Global E-Mail Resource"
/>
</context>

And put those in your web.xml file:

<resource-ref>
    <description>Email Session</description>
    <res-ref-name>mail/Session</res-ref-name>
    <res-type>javax.mail.Session</res-type>
    <res-auth>Container</res-auth>
</resource-ref>

And now, in your Java code, you will use this email session like this:

Context initContext = new InitialContext();
Context context = (Context) initContext.lookup("java:comp/env");
Session mailSession = (Session) context.lookup("mail/Session");
//Your code to send the email goes here

If you get a java.lang.ClassCastException, don't worry, this is a known issue. It's because you have multiple Java Mail jar file and Java Activation Framework jar file in your CLASSPATH!
Hope that may help!