EquitySecurity update error

gistfile1.txt

Exception in thread "main" java.lang.NullPointerException: Server threw exception: com.opengamma.util.map.HashDeepMap2.remove(HashDeepMap2.java:118) com.opengamma.core.AbstractEHCachingSource.cleanCaches(AbstractEHCachingSource.java:306) com.opengamma.core.AbstractEHCachingSource$2.entityChanged(AbstractEHCachingSource.java:129)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
	at java.lang.reflect.Constructor.newInstance(Unknown Source)
	at com.opengamma.util.rest.ExceptionThrowingClientFilter.handle(ExceptionThrowingClientFilter.java:72)
	at com.sun.jersey.api.client.Client.handle(Client.java:648)
	at com.sun.jersey.api.client.WebResource.handle(WebResource.java:680)
	at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74)
	at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:568)
	at com.opengamma.master.security.impl.RemoteSecurityMaster.update(RemoteSecurityMaster.java:111)
	at com.opengamma.master.security.impl.RemoteSecurityMaster.update(RemoteSecurityMaster.java:30)
	at com.algotree.loader.SecurityLoader.demo(SecurityLoader.java:352)
	at com.algotree.loader.SecurityLoader.main(SecurityLoader.java:358)
Caused by: com.sun.jersey.api.client.UniformInterfaceException: POST http://localhost:8080/jax/components/SecurityMaster/central/securities/DbSec~1000 returned a response status of 500 Internal Server Error
	at com.opengamma.util.rest.ExceptionThrowingClientFilter.handle(ExceptionThrowingClientFilter.java:64)
	... 8 more