Error msg: symbol __lic6_wait,version GLIBC_2.0

I've an ipaQ 5550 running Familiar 0.7.2 with GPE and I've installed
Blackdown Virtual Machine on my SD card.
I've followed this guide:

http://handhelds.org/moin/moin.cgi/InstallingJava

The JVM runs properly, I've did some programs but I have a problem when
I use the java command:

Runtime.getRuntime().exec(.......) 

to run some applications.
They start properly but if I close one of them the following error
appears: 

symbol __lic6_wait,version GLIBC_2.0 not defined in file libc.so.6 with
link time reference.

HAVE ANYONE THE SAME PROBLEM AS ME?

COULD ANYONE HELP ME?

THANK YOU ALL in advance.

Eugenio


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