[QA] Plugin PluginIdentifier{engineType='seatunnel', pluginType='source', pluginName='Jdbc'} not found.

### Search before asking

- [x] I had searched in the [issues](https://github.com/apache/seatunnel/issues?q=is%3Aissue+label%3A%22bug%22) and found no similar issues.

### What happened

2025-07-16 15:05:11,050 ERROR [o.a.s.c.s.SeaTunnel ] [main] - Fatal Error,

2025-07-16 15:05:11,051 ERROR [o.a.s.c.s.SeaTunnel ] [main] - Please submit bug report in https://github.com/apache/seatunnel/issues

2025-07-16 15:05:11,051 ERROR [o.a.s.c.s.SeaTunnel ] [main] - Reason:SeaTunnel job executed failed

2025-07-16 15:05:11,055 ERROR [o.a.s.c.s.SeaTunnel ] [main] - Exception StackTrace:org.apache.seatunnel.core.starter.exception.CommandExecuteException: SeaTunnel job executed failed
at org.apache.seatunnel.core.starter.seatunnel.command.ClientExecuteCommand.execute(ClientExecuteCommand.java:228)
at org.apache.seatunnel.core.starter.SeaTunnel.run(SeaTunnel.java:40)
at org.apache.seatunnel.core.starter.seatunnel.SeaTunnelClient.main(SeaTunnelClient.java:40)
Caused by: org.apache.seatunnel.api.table.factory.FactoryException: ErrorCode:[API-06], ErrorDescription:[Factory initialize failed] - Unable to create a source for identifier 'Jdbc'.
at org.apache.seatunnel.api.table.factory.FactoryUtil.restoreAndPrepareSource(FactoryUtil.java:168)
at org.apache.seatunnel.api.table.factory.FactoryUtil.createAndPrepareSource(FactoryUtil.java:86)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.parseSource(MultipleTableJobConfigParser.java:376)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.parse(MultipleTableJobConfigParser.java:227)
at org.apache.seatunnel.engine.client.job.ClientJobExecutionEnvironment.getLogicalDag(ClientJobExecutionEnvironment.java:123)
at org.apache.seatunnel.engine.client.job.ClientJobExecutionEnvironment.execute(ClientJobExecutionEnvironment.java:191)
at org.apache.seatunnel.core.starter.seatunnel.command.ClientExecuteCommand.execute(ClientExecuteCommand.java:165)
... 2 more
Caused by: java.lang.RuntimeException: Plugin PluginIdentifier{engineType='seatunnel', pluginType='source', pluginName='Jdbc'} not found.
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.createPluginInstance(AbstractPluginDiscovery.java:242)
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.createPluginInstance(AbstractPluginDiscovery.java:182)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.lambda$parseSource$3(MultipleTableJobConfigParser.java:359)
at org.apache.seatunnel.api.table.factory.FactoryUtil.restoreAndPrepareSource(FactoryUtil.java:113)
... 8 more

2025-07-16 15:05:11,055 ERROR [o.a.s.c.s.SeaTunnel ] [main] -
===============================================================================

Exception in thread "main" org.apache.seatunnel.core.starter.exception.CommandExecuteException: SeaTunnel job executed failed
at org.apache.seatunnel.core.starter.seatunnel.command.ClientExecuteCommand.execute(ClientExecuteCommand.java:228)
at org.apache.seatunnel.core.starter.SeaTunnel.run(SeaTunnel.java:40)
at org.apache.seatunnel.core.starter.seatunnel.SeaTunnelClient.main(SeaTunnelClient.java:40)
Caused by: org.apache.seatunnel.api.table.factory.FactoryException: ErrorCode:[API-06], ErrorDescription:[Factory initialize failed] - Unable to create a source for identifier 'Jdbc'.
at org.apache.seatunnel.api.table.factory.FactoryUtil.restoreAndPrepareSource(FactoryUtil.java:168)
at org.apache.seatunnel.api.table.factory.FactoryUtil.createAndPrepareSource(FactoryUtil.java:86)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.parseSource(MultipleTableJobConfigParser.java:376)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.parse(MultipleTableJobConfigParser.java:227)
at org.apache.seatunnel.engine.client.job.ClientJobExecutionEnvironment.getLogicalDag(ClientJobExecutionEnvironment.java:123)
at org.apache.seatunnel.engine.client.job.ClientJobExecutionEnvironment.execute(ClientJobExecutionEnvironment.java:191)
at org.apache.seatunnel.core.starter.seatunnel.command.ClientExecuteCommand.execute(ClientExecuteCommand.java:165)
... 2 more
Caused by: java.lang.RuntimeException: Plugin PluginIdentifier{engineType='seatunnel', pluginType='source', pluginName='Jdbc'} not found.
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.createPluginInstance(AbstractPluginDiscovery.java:242)
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.createPluginInstance(AbstractPluginDiscovery.java:182)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.lambda$parseSource$3(MultipleTableJobConfigParser.java:359)
at org.apache.seatunnel.api.table.factory.FactoryUtil.restoreAndPrepareSource(FactoryUtil.java:113)
... 8 more

### SeaTunnel Version

2.3.11

### SeaTunnel Config

```conf
Plugin PluginIdentifier{engineType='seatunnel', pluginType='source', pluginName='Jdbc'} not found.
```

### Running Command

```shell
Plugin PluginIdentifier{engineType='seatunnel', pluginType='source', pluginName='Jdbc'} not found.
```

### Error Exception

```log
] [main] - Exception StackTrace:org.apache.seatunnel.core.starter.exception.CommandExecuteException: SeaTunnel job executed failed
at org.apache.seatunnel.core.starter.seatunnel.command.ClientExecuteCommand.execute(ClientExecuteCommand.java:228)
at org.apache.seatunnel.core.starter.SeaTunnel.run(SeaTunnel.java:40)
at org.apache.seatunnel.core.starter.seatunnel.SeaTunnelClient.main(SeaTunnelClient.java:40)
Caused by: org.apache.seatunnel.api.table.factory.FactoryException: ErrorCode:[API-06], ErrorDescription:[Factory initialize failed] - Unable to create a source for identifier 'Jdbc'.
at org.apache.seatunnel.api.table.factory.FactoryUtil.restoreAndPrepareSource(FactoryUtil.java:168)
at org.apache.seatunnel.api.table.factory.FactoryUtil.createAndPrepareSource(FactoryUtil.java:86)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.parseSource(MultipleTableJobConfigParser.java:376)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.parse(MultipleTableJobConfigParser.java:227)
at org.apache.seatunnel.engine.client.job.ClientJobExecutionEnvironment.getLogicalDag(ClientJobExecutionEnvironment.java:123)
at org.apache.seatunnel.engine.client.job.ClientJobExecutionEnvironment.execute(ClientJobExecutionEnvironment.java:191)
at org.apache.seatunnel.core.starter.seatunnel.command.ClientExecuteCommand.execute(ClientExecuteCommand.java:165)
... 2 more
Caused by: java.lang.RuntimeException: Plugin PluginIdentifier{engineType='seatunnel', pluginType='source', pluginName='Jdbc'} not found.
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.createPluginInstance(AbstractPluginDiscovery.java:242)
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.createPluginInstance(AbstractPluginDiscovery.java:182)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.lambda$parseSource$3(MultipleTableJobConfigParser.java:359)
at org.apache.seatunnel.api.table.factory.FactoryUtil.restoreAndPrepareSource(FactoryUtil.java:113)
... 8 more

2025-07-16 15:05:11,055 ERROR [o.a.s.c.s.SeaTunnel ] [main] -
===============================================================================

Exception in thread "main" org.apache.seatunnel.core.starter.exception.CommandExecuteException: SeaTunnel job executed failed
at org.apache.seatunnel.core.starter.seatunnel.command.ClientExecuteCommand.execute(ClientExecuteCommand.java:228)
at org.apache.seatunnel.core.starter.SeaTunnel.run(SeaTunnel.java:40)
at org.apache.seatunnel.core.starter.seatunnel.SeaTunnelClient.main(SeaTunnelClient.java:40)
Caused by: org.apache.seatunnel.api.table.factory.FactoryException: ErrorCode:[API-06], ErrorDescription:[Factory initialize failed] - Unable to create a source for identifier 'Jdbc'.
at org.apache.seatunnel.api.table.factory.FactoryUtil.restoreAndPrepareSource(FactoryUtil.java:168)
at org.apache.seatunnel.api.table.factory.FactoryUtil.createAndPrepareSource(FactoryUtil.java:86)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.parseSource(MultipleTableJobConfigParser.java:376)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.parse(MultipleTableJobConfigParser.java:227)
at org.apache.seatunnel.engine.client.job.ClientJobExecutionEnvironment.getLogicalDag(ClientJobExecutionEnvironment.java:123)
at org.apache.seatunnel.engine.client.job.ClientJobExecutionEnvironment.execute(ClientJobExecutionEnvironment.java:191)
at org.apache.seatunnel.core.starter.seatunnel.command.ClientExecuteCommand.execute(ClientExecuteCommand.java:165)
... 2 more
Caused by: java.lang.RuntimeException: Plugin PluginIdentifier{engineType='seatunnel', pluginType='source', pluginName='Jdbc'} not found.
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.createPluginInstance(AbstractPluginDiscovery.java:242)
at org.apache.seatunnel.plugin.discovery.AbstractPluginDiscovery.createPluginInstance(AbstractPluginDiscovery.java:182)
at org.apache.seatunnel.engine.core.parse.MultipleTableJobConfigParser.lambda$parseSource$3(MultipleTableJobConfigParser.java:359)
at org.apache.seatunnel.api.table.factory.FactoryUtil.restoreAndPrepareSource(FactoryUtil.java:113)
```

### Zeta or Flink or Spark Version

_No response_

### Java or Scala Version

_No response_

### Screenshots

_No response_

### Are you willing to submit PR?

- [x] Yes I am willing to submit a PR!

### Code of Conduct

- [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)

Start with the stack trace in the issue, especially AbstractPluginDiscovery.createPluginInstance and MultipleTableJobConfigParser.parseSource, to trace why the Jdbc source plugin cannot be found. The report does not include a runnable job configuration or steps to reproduce, so first establish a reproducible case; done means the configured Jdbc source is discovered and the job proceeds past plugin initialization.

Written by the indexing model from the issue text.