Bug 159940 [DataBinding] DataBindingContext shouldn't expose the bindings list as a mutable list
Currently in DataBindingContext getBindings() exposes the bindings observable list as a mutable observable list. I think we need to make this an unmodifiable list and also add a removeBinding(Binding binding) method to the API of DataBindingContext so that the DBC can remove itself from the binding when removed from the DBC. I'll create a patch soon.
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/databinding/DataBindingContext.java
context.dispose();
		}
	}
	/**
	 * @param dataBindingContext
	 * @param bindSpec
	 * @param targetType
	 * @param modelType
	 */
	public void fillBindSpecDefaults(DataBindingContext dataBindingContext,
			BindSpec bindSpec, Object targetType, Object modelType) {
		if (bindSpec.getTypeConversionValidator() == null) {
			bindSpec.setValidator(dataBindingContext.createValidator(
					targetType, modelType));
		}
		if (bindSpec.getDomainValidator() == null) {
			bindSpec.setDomainValidator(dataBindingContext
					.createDomainValidator(modelType));
		}
		IConverter[] modelToTargetConverters = bindSpec
				.getModelToTargetConverters();
		if (modelToTargetConverters.length > 1) {
			for (int i = 0; i < modelToTargetConverters.length; i++) {
				if (modelToTargetConverters[i] == null) {
					modelToTargetConverters[i] = dataBindingContext
							.createConverter(modelType, targetType);
				}
			}
		} else {