java.lang.OutOfMemoryError, VM may need to be forcibly terminated

[Oleg Burlaca]

Hello,

I've searched the list for this kind of error but never find one that is
similar to my case:
    Java HotSpot(TM) Client VM warning:
    Exception java.lang.OutOfMemoryError occurred dispatching signal
    SIGTERM to handler- the VM may need to be forcibly terminated


I use the latest stable SOLR 1.4 and start it with Jetty from the 
/example/ folder.

Sometimes SOLR dies without writing to the stderrout.log
(I use the script from http://wiki.apache.org/solr/SolrJetty)

The messages above appears in the standard error stream instead of the 
log file. (i.e. it appears directly in the SSH window).

I've set:
      <New class="org.mortbay.thread.BoundedThreadPool">
        <Set name="minThreads">2</Set>
        <Set name="lowThreads">2</Set>
        <Set name="maxThreads">2</Set>
      </New>

Is there a way to solve this? SOLR is on a VPS with 512MB of RAM.

Regards,
Oleg Burlaca