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java.lang.ArrayIndexOutOfBoundsException: 0	at org.pentaho.di.ui.trans.steps.mysqlbulkloader.MySQLBulkLoaderDialog.generateMappings(MySQLBulkLoaderDialog.java:735)	at org.pentaho.di.ui.trans.steps.mysqlbulkloader.MySQLBulkLoaderDialog.access$500(MySQLBulkLoaderDialog.java:86)	at org.pentaho.di.ui.trans.steps.mysqlbulkloader.MySQLBulkLoaderDialog$6.handleEvent(MySQLBulkLoaderDialog.java:512)	at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source)	at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source)	at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source)	at org.pentaho.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1227)	at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:7368)	at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:8673)	at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:625)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.pentaho.commons.launcher.Launcher.main(Launcher.java:134)