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• you have created your GPG keys. For more information, please refer to Making GPG Keys and http://www.apache.org/dev/release-signing.html .
• you have a GPG client installed and on your shell's path. See http://www.gnupg.org/.
• you have a Subversion 1.5+ client installed and on your shell's path. See http://subversion.tigris.org/.
• you have a Java 1.4.2 JDK installed and on your shell's path. See http://java.sun.com/j2se/1.4.2/download.html.
• you have set the environment variable MAVEN_OPTS=-Xmx512m
• you are using Maven 2.0.x or 2.2.1+, as Maven 2.1.x is known to produce wrong gpg pom signatures (see MGPG-14).

Make sure maven uses Java

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6

Download the latest JDK 5 6 http://www.oracle.com/technetwork/java/javasebusinessjavase/downloads/java-archivejdk6-downloads-javase5-419410.html#jdk-1.5.0_22-oth-JPR1637591.html^{Image Modified}

Create a mvn5 mvn6 shell script and add it to your PATH. This script makes sure you use Java 5 6 to build the release.

/usr/bin/mvn5

#!/bin/sh
JAVA_HOME="/usr/lib/jvm/java-1.56.0-sun"
mvn $@

test the script by running this command:

>mvn5 --version
Apache Maven 2.2.1 (r801777; 2009-08-06 20:16:01+0100)
Java version: 1.56.0_1833
Java home: /usr/lib/jvm/java-1.56.0-sun-1.56.0.1833/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux" version: "2.6.28-15-generic" arch: "amd64" Family: "unix"

Make sure that the Java version is 1.56.x!

Creating a new RC

Update the changelog file

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