Fetching contributors…
Cannot retrieve contributors at this time
112 lines (75 sloc) 3.03 KB

#Neo4j Graph Database

For more information, visit:


Neo4j is built using Maven -

Maven 3 is now supported


For helping out improving Neo4j, check out the intro on contributing code.


At least as of Neo4j 1.7 and OpenJDK 1.7.0_147-icedtea, OpenJDK 7 is unable to build Neo4j with following error: java.lang.AssertionError: Missing type variable in where clause T. Please use JDK 6 (OpenJDK is fine) to build Neo4j.

In addition, you need to allow enough memory to the Maven build process, for example by adding before launching Maven:

export JAVA_OPTS='-Xms384M -Xmx512M -XX:MaxPermSize=256M'

At least on OpenJDK 1.6.0_23, building Neo4j with the default settings throws misleading exceptions such as: (reproduced here for your information)

[ERROR][178,33] cannot find symbol
symbol  : method and(java.lang.Iterable<java.lang.Object>)
location: class org.neo4j.helpers.Specifications
[ERROR][342,63] <FROM,TO>map(
	org.neo4j.helpers.Function<? super FROM,? extends TO>,
	java.lang.Iterable<FROM>) in org.neo4j.helpers.collection.Iterables
	cannot be applied to (<anonymous org.neo4j.helpers.Function<java.lang.Iterable<T>,

Build Steps Community:

git clone git://
mvn clean install

To build all of the Neo4j Distribution

These instructions are for OS X, with installed.

prepare the repo:

rm -rf ~/.m2/repository/org/neo4j
mkdir build
cd build

build community:

git clone
cd community
git pull origin master
mvn clean install -Dmaven.test.skip=true
cd ..

build advanced

git clone
cd advanced
git pull origin master
mvn clean install -Dmaven.test.skip=true
cd ..

build enterprise

git clone
cd enterprise
git pull origin master
mvn clean install -Dmaven.test.skip=true
cd ..

install the ASCIIDOC toolchain

brew install docbook asciidoc w3m fop graphviz && sudo docbook-register

build the manual

git clone
cd manual
git pull origin master
mvn clean install -Dmaven.test.skip=true
cd ..

Build the standalone distributions

git clone
cd packaging
git pull origin master
cd standalone
mvn clean package

Working with the source code in Eclipse IDE

Have a look at the readme file in cypher/ for how to get that project to work in Eclipse IDE. If it isn't setup properly, other projects (submodules) that depend on it will not get built by Eclipse.