java.lang.IllegalArgumentException while importing guava sources into Eclipse

Today I encountered a problem with importing guava sources into Eclipse.

Steps to reproduce:

0. Checkout guava sources
1. Import project into Eclipse as "Existing Maven Projects"

Detected:

Install Ant and Maven

Install Ant

Download ant from here: http://ant.apache.org/bindownload.cgi

$ tar -zxvf apache-ant-x.x.x-bin.tar.gz
$ su -c "mv apache-ant-x.x.x /opt/ant-x.x.x"

Open .bash_profile and add:

export ANT_HOME=/opt/ant-x.x.x
PATH=$PATH:$ANT_HOME/bin


Install Maven

Download maven from here: http://maven.apache.org/download.html

$ tar -zxvf apache-maven-x.x.x-bin.tar.gz
$ su -c "mv apache-maven-x.x.x /opt/maven-x.x.x"

Open .bash_profile and add:

export MAVEN_HOME=/opt/maven-x.x.x
PATH=$PATH:$MAVEN_HOME/bin

$ source ~/.bash_profile