$ export JAVA_HOME=/usr/java/jdk1.5.0_14
$ export PATH=$JAVA_HOME/bin:$PATH

$ md5sum confluence-2.7.1-source.zip
b136f7c01bd16387465ba6c4f493c560  confluence-2.7.1-source.zip
$ unzip confluence-2.7.1-source.zip
$ cd confluence-2.7.1-source/
$ ./build.sh
[...]
Downloading: http://repository.atlassian.com/javax.transaction/jars/jta-1.0.1b.jar
Downloading: http://repo1.maven.org/maven2/javax/transaction/jta/1.0.1b/jta-1.0.1b.jar
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Failed to resolve artifact.

Missing:
----------
1) javax.mail:mail:jar:1.3.2

  Try downloading the file manually from: 
      http://java.sun.com/products/javamail/downloads/index.html

  Then, install it using the command: 
      mvn install:install-file -DgroupId=javax.mail -DartifactId=mail \
          -Dversion=1.3.2 -Dpackaging=jar -Dfile=/path/to/file

  Path to dependency: 
        1) com.atlassian.ofbiz:atlassian-ofbiz:jar:2.1
        2) javax.mail:mail:jar:1.3.2

2) javax.transaction:jta:jar:1.0.1b

  Try downloading the file manually from the project website.

  Then, install it using the command: 
      mvn install:install-file -DgroupId=javax.transaction -DartifactId=jta \
          -Dversion=1.0.1b -Dpackaging=jar -Dfile=/path/to/file

  Path to dependency: 
        1) com.atlassian.ofbiz:atlassian-ofbiz:jar:2.1
        2) javax.transaction:jta:jar:1.0.1b

----------
2 required artifacts are missing.

for artifact: 
  com.atlassian.ofbiz:atlassian-ofbiz:jar:2.1

from the specified remote repositories:
  central (http://repo1.maven.org/maven2),
  atlassian-m1-repository (http://repository.atlassian.com),
  atlassian-proxy (https://m2proxy.atlassian.com/repository/public)


[INFO] ------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4 minutes 56 seconds
[INFO] Finished at: Mon Mar 03 18:02:38 CET 2008
[INFO] Final Memory: 37M/73M
[INFO] ------------------------------------------------------------------------