zcqshine opened a new issue #2137: batchSave IndexOutOfBoundsException URL: https://github.com/apache/incubator-shardingsphere/issues/2137 ## Bug Report version: `4.0.0-RC1-RELEASE` `4.0.0.RC1-SNAPSHOT` batchInsert will throwable IndexOutOfBoundsException: Index:0, Size 0 err msg: ``` at java.util.LinkedList.checkElementIndex(LinkedList.java:555) at java.util.LinkedList.get(LinkedList.java:476) at org.apache.shardingsphere.core.optimize.result.InsertColumnValues$InsertColumnValue.getColumnSQLExpressionValue(InsertColumnValues.java:154) at org.apache.shardingsphere.core.optimize.result.InsertColumnValues$InsertColumnValue.fillResultByValues(InsertColumnValues.java:148) at org.apache.shardingsphere.core.optimize.result.InsertColumnValues$InsertColumnValue.toString(InsertColumnValues.java:133) at java.lang.String.valueOf(String.java:2981) at java.lang.StringBuilder.append(StringBuilder.java:131) at org.apache.shardingsphere.core.rewrite.SQLBuilder.appendInsertColumnValue(SQLBuilder.java:197) at org.apache.shardingsphere.core.rewrite.SQLBuilder.appendInsertValuesPlaceholder(SQLBuilder.java:190) at org.apache.shardingsphere.core.rewrite.SQLBuilder.toSQL(SQLBuilder.java:115) at org.apache.shardingsphere.core.rewrite.SQLRewriteEngine.generateSQL(SQLRewriteEngine.java:507) at org.apache.shardingsphere.core.BaseShardingEngine.rewriteAndConvert(BaseShardingEngine.java:90) at org.apache.shardingsphere.core.BaseShardingEngine.shard(BaseShardingEngine.java:65) at org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.shard(ShardingPreparedStatement.java:224) at org.apache.shardingsphere.shardingjdbc.jdbc.core.statement.ShardingPreparedStatement.addBatch(ShardingPreparedStatement.java:215) at sun.reflect.GeneratedMethodAccessor486.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45005) at java.lang.reflect.Method.invoke(Method.java:483) ``` before insert the data, I have checked the `ArrayList` is empty or is null ```java if (CollectionUtil.isNotEmpty(saveList)){ flag = functionRelationService.saveBatch(saveList); } ```
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