问题遇到的现象和发生背景
我下载了一个开源的kettle master project，打到war包发布到windows下可以正在的执行转换和工作，
发布到linux下执行失败，请帮忙看一下，报错如下：
运行结果及报错内容
2022/02/19 21:30:00 - test001 - Dispatching started for transformation [test001]
2022/02/19 21:30:00 - resource table.0 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : An error occurred, processing will be stopped:
2022/02/19 21:30:00 - resource table.0 - Error occurred while trying to connect to the database
2022/02/19 21:30:00 - resource table.0 -
2022/02/19 21:30:00 - resource table.0 - Error connecting to database: (using class org.gjt.mm.mysql.Driver)
2022/02/19 21:30:00 - resource table.0 - Communications link failure
2022/02/19 21:30:00 - resource table.0 -
2022/02/19 21:30:00 - resource table.0 - The last packet successfully received from the server was 1 milliseconds ago. The last packet sent successfully to the server was 1 milliseconds ago.
2022/02/19 21:30:00 - test001 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : Something went wrong while trying to stop the transformation: org.pentaho.di.core.exception.KettleDatabaseException:
2022/02/19 21:30:00 - test001 - Unable to get database metadata from this database connection
2022/02/19 21:30:00 - test001 - at java.lang.Thread.run (Thread.java:750)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.step.StepInitThread.run (StepInitThread.java:69)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.steps.tableinput.TableInput.init (TableInput.java:356)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.step.BaseStep.stopAll (BaseStep.java:2897)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.Trans.stopAll (Trans.java:1875)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.steps.tableinput.TableInput.stopRunning (TableInput.java:299)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.core.database.Database.cancelQuery (Database.java:727)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.core.database.Database.getDatabaseMetaData (Database.java:2911)
2022/02/19 21:30:00 - test001 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : org.pentaho.di.core.exception.KettleDatabaseException:
2022/02/19 21:30:00 - test001 - Unable to get database metadata from this database connection
2022/02/19 21:30:00 - test001 - at java.lang.Thread.run (Thread.java:750)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.step.StepInitThread.run (StepInitThread.java:69)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.steps.tableinput.TableInput.init (TableInput.java:356)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.step.BaseStep.stopAll (BaseStep.java:2897)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.Trans.stopAll (Trans.java:1875)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.steps.tableinput.TableInput.stopRunning (TableInput.java:299)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.core.database.Database.cancelQuery (Database.java:727)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.core.database.Database.getDatabaseMetaData (Database.java:2911)
2022/02/19 21:30:00 - test001 -
2022/02/19 21:30:00 - test001 - at org.pentaho.di.core.database.Database.getDatabaseMetaData(Database.java:2913)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.core.database.Database.cancelQuery(Database.java:727)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.steps.tableinput.TableInput.stopRunning(TableInput.java:299)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.Trans.stopAll(Trans.java:1875)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.step.BaseStep.stopAll(BaseStep.java:2897)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.steps.tableinput.TableInput.init(TableInput.java:356)
2022/02/19 21:30:00 - test001 - at org.pentaho.di.trans.step.StepInitThread.run(StepInitThread.java:69)
2022/02/19 21:30:00 - test001 - at java.lang.Thread.run(Thread.java:750)
2022/02/19 21:30:00 - test001 - Caused by: java.lang.NullPointerException
2022/02/19 21:30:00 - test001 - at org.pentaho.di.core.database.Database.getDatabaseMetaData(Database.java:2911)
2022/02/19 21:30:00 - test001 - ... 7 more
2022/02/19 21:30:00 - resource table.0 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : Error initializing step [resource table]
2022/02/19 21:30:00 - Insert / Update.0 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : An error occurred during initialization, processing will be stopped:
2022/02/19 21:30:00 - Insert / Update.0 - Error occurred while trying to connect to the database
2022/02/19 21:30:00 - Insert / Update.0 -
2022/02/19 21:30:00 - Insert / Update.0 - Error connecting to database: (using class org.gjt.mm.mysql.Driver)
2022/02/19 21:30:00 - Insert / Update.0 - Communications link failure
2022/02/19 21:30:00 - Insert / Update.0 -
2022/02/19 21:30:00 - Insert / Update.0 - The last packet successfully received from the server was 0 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.
2022/02/19 21:30:00 - Insert / Update.0 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : Error initializing step [Insert / Update]
2022/02/19 21:30:00 - test001 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : Step [resource table.0] failed to initialize!
2022/02/19 21:30:00 - test001 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : Step [Insert / Update.0] failed to initialize!
2022/02/19 21:30:00 - resource table.0 - Finished reading query, closing connection.
2022/02/19 21:30:00 - test001 - ERROR (version 7.0.0.0-25, build 1 from 2016-11-05 15.35.36 by buildguy) : Errors detected!
