Java heap size too large

[ngn]

When trying to build the project with cake bake I'm getting

Command failed: Invalid maximum heap size: -Xmx4g
The specified size exceeds the maximum representable size.
Error: Could not create the Java Virtual Machine.

I'm using

$ java -version
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) Server VM (build 24.45-b08, mixed mode)

After removing all occurrences of -Xmx4g Java appears to be running successfully (at least until the build runs into further, unrelated, troubles).

I propose omitting -Xmx4g.