Service builder fails because large number of tables

Hi this problem arises because number of different problem.
I faced this problem because of two different reasons, one I already post in my blog and the second reason is sdk unable to create that specific memory.
To avoid this problem you have to modify build-common-plugin.xml file and the path of the file
\liferay-plugins-sdk-6.1.1\build-common-plugin.xml
and the modifications are
from
<jvmarg value="-Xms256m" />
<jvmarg value="-Xmx1024m" />
to
<jvmarg value="-Xms128m" />
<jvmarg value="-Xmx512m" />
some one said that tables will create at time of deployment not at the time of service building but it is wrong service builder must requires space.

may be this is helpful.
Thanks