hdfsreader/src/main/java/com/alibaba/datax/plugin/reader/hdfsreader/DFSUtil.java [468:504]:
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                        columnValue = null;
                    }
                    switch (type) {
                        case STRING:
                            columnGenerated = new StringColumn(columnValue);
                            break;
                        case LONG:
                            try {
                                columnGenerated = new LongColumn(columnValue);
                            } catch (Exception e) {
                                throw new IllegalArgumentException(String.format(
                                        "类型转换错误, 无法将[%s] 转换为[%s]", columnValue,
                                        "LONG"));
                            }
                            break;
                        case DOUBLE:
                            try {
                                columnGenerated = new DoubleColumn(columnValue);
                            } catch (Exception e) {
                                throw new IllegalArgumentException(String.format(
                                        "类型转换错误, 无法将[%s] 转换为[%s]", columnValue,
                                        "DOUBLE"));
                            }
                            break;
                        case BOOLEAN:
                            try {
                                columnGenerated = new BoolColumn(columnValue);
                            } catch (Exception e) {
                                throw new IllegalArgumentException(String.format(
                                        "类型转换错误, 无法将[%s] 转换为[%s]", columnValue,
                                        "BOOLEAN"));
                            }

                            break;
                        case DATE:
                            try {
                                if (columnValue == null) {
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plugin-unstructured-storage-util/src/main/java/com/alibaba/datax/plugin/unstructuredstorage/reader/UnstructuredStorageReaderUtil.java [398:434]:
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						columnValue = null;
					}
					switch (type) {
						case STRING:
							columnGenerated = new StringColumn(columnValue);
							break;
						case LONG:
							try {
								columnGenerated = new LongColumn(columnValue);
							} catch (Exception e) {
								throw new IllegalArgumentException(String.format(
										"类型转换错误, 无法将[%s] 转换为[%s]", columnValue,
										"LONG"));
							}
							break;
						case DOUBLE:
							try {
								columnGenerated = new DoubleColumn(columnValue);
							} catch (Exception e) {
								throw new IllegalArgumentException(String.format(
										"类型转换错误, 无法将[%s] 转换为[%s]", columnValue,
										"DOUBLE"));
							}
							break;
						case BOOLEAN:
							try {
								columnGenerated = new BoolColumn(columnValue);
							} catch (Exception e) {
								throw new IllegalArgumentException(String.format(
										"类型转换错误, 无法将[%s] 转换为[%s]", columnValue,
										"BOOLEAN"));
							}

							break;
						case DATE:
							try {
								if (columnValue == null) {
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