Bug 17256 Exception due to bug 17208
bundles/org.eclipse.core.databinding/src/org/eclipse/core/databinding/UpdateValueStrategy.java
"converter does not convert to type " + destinationType); 
			}
		}
	}
	private IValidator findValidator(Object fromType, Object toType) {
		
		return validatorRegistry.get(fromType, toType);
	}
	/**
	 * @return the update policy
	 */
	public int getUpdatePolicy() {
		return updatePolicy;
	}
	/**
	 * @param validator
	 * @return the receiver, to enable method call chaining
	 */
	public UpdateValueStrategy setAfterConvertValidator(IValidator validator) {
		this.afterConvertValidator = validator;
		return this;
	}
	/**
	 * @param validator
	 * @return the receiver, to enable method call chaining
	 */
	public UpdateValueStrategy setAfterGetValidator(IValidator validator) {
		this.afterGetValidator = validator;
		return this;
	}