### Question:
ReflectData extends SpecificData { protected Object createSchemaDefaultValue(Type type, Field field, Schema fieldSchema) { Object defaultValue; if (defaultGenerated) { defaultValue = getOrCreateDefaultValue(type, field); if (defaultValue != null) { return deepCopy(fieldSchema, defaultValue); } } AvroDefault defaultAnnotation = field.getAnnotation(AvroDefault.class); defaultValue = (defaultAnnotation == null) ? null : Schema.parseJsonToObject(defaultAnnotation.value()); if (defaultValue == null && fieldSchema.getType() == Schema.Type.UNION) { Schema defaultType = fieldSchema.getTypes().get(0); if (defaultType.getType() == Schema.Type.NULL) { defaultValue = JsonProperties.NULL_VALUE; } } return defaultValue; } ReflectData();  ReflectData(ClassLoader classLoader); @Override boolean useCustomCoders(); static ReflectData get(); ReflectData addStringable(Class c); ReflectData setDefaultsGenerated(boolean enabled); ReflectData setDefaultGeneratedValue(Type type, Object value); @Override DatumReader createDatumReader(Schema schema); @Override DatumReader createDatumReader(Schema writer, Schema reader); @Override DatumWriter createDatumWriter(Schema schema); @Override void setField(Object record, String name, int position, Object value); @Override Object getField(Object record, String name, int position); @Override boolean validate(Schema schema, Object datum); @Override Class getClass(Schema schema); static Schema makeNullable(Schema schema); @Override Protocol getProtocol(Class iface); @Override Object createFixed(Object old, Schema schema); @Override Object newRecord(Object old, Schema schema);  }### Answer:
@Test public void testCreateSchemaDefaultValue() { Meta meta = new Meta(); validateSchema(meta); meta.f4 = 0x1987; validateSchema(meta); }