Program: 91700
Project: 91700
Buggy source:
/** 
 * Executes the operation on the specified feature with the specified parameters. The value returned by this method depends on the value returned by   {@link #getResult()}: <ul> <li>If   {@code getResult()} returns {@code null}, then this method should return   {@code null}.</li> <li>If   {@code getResult()} returns an instance of {@link AttributeType}, then this method shall return an instance of   {@link Attribute}and the   {@code Attribute.getType() == getResult()} relation should hold.</li><li>If  {@code getResult()} returns an instance of {@link FeatureAssociationRole}, then this method shall return an instance of   {@link FeatureAssociation}and the   {@code FeatureAssociation.getRole() == getResult()} relation should hold.</li></ul> <div class="note"><b>Analogy:</b> if we compare  {@code Operation} to {@link Method} in the Java language, then this method is equivalentto  {@link Method#apply(Object,Object)}. The   {@code Feature} argument is equivalent to {@code this}in the Java language, and may be   {@code null} if the operation does not need a feature instance(like static methods in the Java language).</div>
 * @param feature     the feature on which to execute the operation.Can be  {@code null} if the operation does not need feature instance.
 * @param parameters  the parameters to use for executing the operation.Can be  {@code null} if the operation does not take any parameters.
 * @return the operation result, or {@code null} if this operation does not produce any result.
 * @throws FeatureOperationException if the operation execution can not complete.
 */
@Override public abstract Property apply(Feature feature,ParameterValueGroup parameters) throws FeatureOperationException ;

Fixed version (ground truth):
/** 
 * Executes the operation on the specified feature with the specified parameters. The value returned by this method depends on the value returned by   {@link #getResult()}: <ul> <li>If   {@code getResult()} returns {@code null}, then this method should return   {@code null}.</li> <li>If   {@code getResult()} returns an instance of {@link AttributeType}, then this method shall return an instance of   {@link Attribute}and the   {@code Attribute.getType() == getResult()} relation should hold.</li><li>If  {@code getResult()} returns an instance of {@link org.opengis.feature.FeatureAssociationRole}, then this method shall return an instance of   {@link FeatureAssociation}and the   {@code FeatureAssociation.getRole() == getResult()} relation should hold.</li></ul> <div class="note"><b>Analogy:</b> if we compare  {@code Operation} to {@link java.lang.reflect.Method} in the Java language, then this method is equivalentto  {@link java.lang.reflect.Method#invoke(Object,Object)}. The   {@code Feature} argument is equivalent to {@code this}in the Java language, and may be   {@code null} if the operation does not need a feature instance(like static methods in the Java language).</div>
 * @param feature     the feature on which to execute the operation.Can be  {@code null} if the operation does not need feature instance.
 * @param parameters  the parameters to use for executing the operation.Can be  {@code null} if the operation does not take any parameters.
 * @return the operation result, or {@code null} if this operation does not produce any result.
 * @throws FeatureOperationException if the operation execution can not complete.
 */
@Override public abstract Property apply(Feature feature,ParameterValueGroup parameters) throws FeatureOperationException ;