Create execute file java wrrapper

#!/bin/sh

cd $(dirname $0)
java  -cp jar1_path:jar2_path MainClassOfJar $@

Caused by: net.sf.ehcache.CacheException: Can't assign requested address

If you using Mac, Payara or Glassfish, when you use EHCache, maybe this error occurs:

Caused by: net.sf.ehcache.CacheException: Can't assign requested address

Solution:
add

-Djava.net.preferIPv4Stack=true

to JVM Options

That's all!

Good luck!

Install Tor proxy on Mac

1. Install latest Command Line Tools from Apple Store at https://developer.apple.com/downloads

2. Install libevent from http://libevent.org

• Download libevent compressed file
• Extract and point to folder
• compile using command: ./configure && make
• install using command: sudo make install

3. Install Tor

• download Tor source from  https://www.torproject.org/download/download (choose Source Code section)
• extract and point to folder
• compile using command: ./configure && make
• run using command: src/or/tor

You can config all network using Tor proxy by config SOCK proxy on Network section for current internet interface.

Connect internet when VPN

Open Network Connections Manager, choose your VPN connection, click on Routes... button

If your VPN network in 10.x.x.x you can setup like this

Disconnect VPN and reconnect, you can access internet with it.

Default iptables rules when install ireadmail

When I install iredmail, the default iptables rule file has created in /etc/default/iptables

Please careful when edit it because it can block access to your system.

Blank screen when access web admin on Payara

When you config Realm on Payara, sometimes it add default-principal="admin" into tag <security service> look like

<security-service default-principal-password="yourpasswordherer" default-principal="admin">


remove default-principal="admin" and issue will be gone

correct line:
<security-service default-principal-password="yourpasswordherer">

Good luck

WELD-001408 Unsatisfied dependencies ...

Problem

Can not deploy web application, web server raise error: WELD-001408: Unsatisfied dependencies for type SessionBean with qualifiers @Default ....

Cause

Lack of file beans.xml (I cannot why that file must exist for resolving issue). This is one of popular purposes to resolve.

Solution

Create file beans.xml and put it same location of web.xml

The content of beans.xml is:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://jboss.org/schema/cdi/beans_1_0.xsd">
   
</beans>

That's all.

Reference

http://docs.jboss.org/weld/reference/latest/en-US/html/injection.html