你好，我正在使用Couchbase Java SDK 3.2.6和Spring2.6.6和Junit5，当一些异常在测试中抛出时，它们都失败了，因为在异常消息的末尾添加了“NULL”关键字。

测试

import com.couchbase.client.core.error.DocumentNotFoundException;
import com.couchbase.client.core.error.context.ErrorContext;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.mapstruct.factory.Mappers;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.Spy;
import org.mockito.junit.jupiter.MockitoExtension;

@ExtendWith(MockitoExtension.class)
class TaskServiceTest {

    @InjectMocks
    private TaskService taskService;

    @Mock
    private TaskRepository taskRepository;

    @Test
    void shouldThrowDocumentNotFoundExceptionWithGettingTaskByIdForFindTaskById() {
        //Given
        var exceptionMessage = "Document with the given id not found";
        var wrongTaskId = "12345678";

        when(taskRepository.findTaskById(wrongTaskId)).thenThrow(new DocumentNotFoundException(mock(ErrorContext.class)));

        //When
        var exception = assertThrows(DocumentNotFoundException.class, () -> taskService.getTaskDetail(wrongTaskId));

        //Then
        assertEquals(exceptionMessage, exception.getLocalizedMessage());
    }
}

错误消息

org.opentest4j.AssertionFailedError: 
Expected :Document with the given id not found
Actual   :Document with the given id not found null

编辑：

在CouchbaseExceptions类中，此getMessage方法返回正确的错误消息+NULL

public CouchbaseException(String message, Throwable cause, ErrorContext ctx) {
        super(message, cause);
        this.ctx = ctx;
    }

    public final String getMessage() {
        String output = super.getMessage();
        return this.ctx != null ? output + " " + this.ctx.exportAsString(ExportFormat.JSON) : output;
    }