Build of project fornax-cartridges-uml2-spring-reference fails with an OutOfMemoryError. Increase heap space.

41020 INFO CompositeComponent - XtendComponent: executing 'org::fornax::cartridges::uml2::spring::extensions::DaoTransformation'
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Starting model transformation...
Use generics for DAO is: false
Use generics for Service is: false
Default method generation is: enabled
Global DAO method population is: enabled
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Java heap space
[INFO] ------------------------------------------------------------------------
[INFO] Trace
java.lang.OutOfMemoryError: Java heap space
at java.util.regex.Pattern.compile(Pattern.java:1432)
at java.util.regex.Pattern.<init>(Pattern.java:1133)
at java.util.regex.Pattern.compile(Pattern.java:823)
at org.openarchitectureware.expression.EvaluationException.<clinit>(EvaluationException.java:82)