vansee opened a new issue #12936:
URL: https://github.com/apache/shardingsphere/issues/12936
## Bug Report
Error querying database. Cause: java.lang.IndexOutOfBoundsException: Index:
0, Size: 0
The error may exist in file
[/Users/**/Workspace/Github/**/target/classes/mapper/system/SysConfigMapper.xml]
The error may involve com.**.mapper.SysConfigMapper.selectConfigList
The error occurred while handling results
SQL: select config_id, config_group,
config_name, config_key, config_value,
config_type, status_code, del_flag,
created_by, created_name, created_time,
remark, vor from sys_config
Cause: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at
org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
at
org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:149)
at
org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:427)
... 96 common frames omitted
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:657)
at java.util.ArrayList.get(ArrayList.java:433)
at
org.apache.shardingsphere.infra.merge.MergeEngine.merge(MergeEngine.java:78)
at
org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.mergeQuery(ShardingSpherePreparedStatement.java:379)
at
org.apache.shardingsphere.driver.jdbc.core.statement.ShardingSpherePreparedStatement.getResultSet(ShardingSpherePreparedStatement.java:324)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:69)
at com.sun.proxy.$Proxy245.getResultSet(Unknown Source)
at
org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getFirstResultSet(DefaultResultSetHandler.java:237)
at
org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:187)
at
org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:65)
at
org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79)
at
org.apache.ibatis.executor.ReuseExecutor.doQuery(ReuseExecutor.java:60)
at
org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325)
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
at
org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
at
org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:89)
at
org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:147)
... 102 common frames omitted
Before report a bug, make sure you have:


when insert/update/delete then SQLException can't been handle with
SQLExecutorExceptionHandler.handleException(ex) and logger it.
- Searched open and closed [GitHub
issues](https://github.com/apache/shardingsphere/issues).
- Read documentation: [ShardingSphere
Doc](https://shardingsphere.apache.org/document/current/en/overview).
Please pay attention on issues you submitted, because we maybe need more
details.
If no response anymore and we cannot reproduce it on current information, we
will **close it**.
Please answer these questions before submitting your issue. Thanks!
### Which version of ShardingSphere did you use?
5.0.0-beta or 5.0.0-alpha
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-JDBC
### Expected behavior
Throw SQLException
### Actual behavior
No SQLException was thrown
### Reason analyze (If you can)
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule
configuration, when exception occur etc.
### Example codes for reproduce this issue (such as a github link).
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