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  1. ,
    Expert tip

    This might be an issue with the file location in the Spark submit command. Try it with

    spark-submit --master spark://master:7077 \ {file location}
  2. ,

    You are not deploying the oracle driver with the application. Place the driver jars in a shared or library extension folder of your application server. (You should go with option one or two though

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java.lang.ClassNotFoundException: com.mysql.jdbc.Driver	at$	at Method)	at	at java.lang.ClassLoader.loadClass(	at sun.misc.Launcher$AppClassLoader.loadClass(	at java.lang.ClassLoader.loadClass(	at java.lang.ClassLoader.loadClassInternal(	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(	at db.DBManager.connectToMYSQL(	at ui.SelectDBForm.connectToDBButtonActionPerformed(	at ui.SelectDBForm.access$000(	at ui.SelectDBForm$1.actionPerformed(	at javax.swing.AbstractButton.fireActionPerformed(	at javax.swing.AbstractButton$Handler.actionPerformed(	at javax.swing.DefaultButtonModel.fireActionPerformed(	at javax.swing.DefaultButtonModel.setPressed(	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(	at java.awt.AWTEventMulticaster.mouseReleased(	at java.awt.Component.processMouseEvent(	at javax.swing.JComponent.processMouseEvent(	at java.awt.Component.processEvent(	at java.awt.Container.processEvent(	at java.awt.Component.dispatchEventImpl(	at java.awt.Container.dispatchEventImpl(	at java.awt.Component.dispatchEvent(	at java.awt.LightweightDispatcher.retargetMouseEvent(	at java.awt.LightweightDispatcher.processMouseEvent(	at java.awt.LightweightDispatcher.dispatchEvent(	at java.awt.Container.dispatchEventImpl(	at java.awt.Window.dispatchEventImpl(	at java.awt.Component.dispatchEvent(	at java.awt.EventQueue.dispatchEvent(	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(	at java.awt.EventDispatchThread.pumpEventsForHierarchy(	at java.awt.EventDispatchThread.pumpEvents(	at java.awt.EventDispatchThread.pumpEvents(	at