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  1. ,
    via oracle.com by Unknown author

    App tries to load in a class through its string name using forName method in class Class, findSystemClass method in class ClassLoader, loadClass method in class ClassLoader but no definition for the class with the specified name could be found.

  2. ,

    Unless you are involved in dynamic class loading and using the Java Reflection API, chances are that the ClassNotFoundException error you are getting is not from your application code but from a referencing API.

Solutions on the web

via pentaho.com by Unknown author, 1 year ago
Error occurred while trying to connect to the database Error connecting to database: (using class org.apache.hive.jdbc.HiveDriver) org/apache/hadoop/hive/thrift/HadoopThriftAuthBridge$HiveSaslServerTransportFactory
via pentaho.com by Unknown author, 1 year ago
Error occured while trying to connect to the database Error connecting to database: (using class org.apache.hadoop.hive.jdbc.HiveDriver) org/apache/thrift/transport/TTransportException
via Pentaho BI Platform Tracking by Babak Tourani, 1 year ago
Error occured while trying to connect to the database Error connecting to database: (using class oracle.jdbc.driver.OracleDriver) IO Error: The Network Adapter could not establish the connection
via Pentaho BI Platform Tracking by Babak Tourani, 1 year ago
Error occured while trying to connect to the database Error connecting to database: (using class oracle.jdbc.driver.OracleDriver) IO Error: The Network Adapter could not establish the connection
via Pentaho BI Platform Tracking by Kulikov Alexandr, 1 year ago
Error occured while trying to connect to the database Exception while loading class org.gjt.mm.mysql.Driver
via pentaho.com by Unknown author, 2 years ago
Error occured while trying to connect to the database Error connecting to database: (using class org.apache.hadoop.hive.jdbc.HiveDriver) Unable to load Hive JDBC driver for the currently active Hadoop configuration
java.lang.ClassNotFoundException: org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge$HiveSaslServerTransportFactory	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)	at org.apache.hive.jdbc.HiveConnection.createBinaryTransport(HiveConnection.java:396)	at org.apache.hive.jdbc.HiveConnection.openTransport(HiveConnection.java:187)	at org.apache.hive.jdbc.HiveConnection.(HiveConnection.java:163)	at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:105)	at java.sql.DriverManager.getConnection(DriverManager.java:571)	at java.sql.DriverManager.getConnection(DriverManager.java:215)	at org.pentaho.di.core.database.Database.connectUsingClass(Database.java:554)	at org.pentaho.di.core.database.Database.normalConnect(Database.java:443)	at org.pentaho.di.core.database.Database.connect(Database.java:357)	at org.pentaho.di.core.database.Database.connect(Database.java:328)	at org.pentaho.di.core.database.Database.connect(Database.java:318)	at org.pentaho.di.core.database.DatabaseFactory.getConnectionTestReport(DatabaseFactory.java:80)	at org.pentaho.di.core.database.DatabaseMeta.testConnection(DatabaseMeta.java:2734)	at org.pentaho.ui.database.event.DataHandler.testDatabaseConnection(DataHandler.java:588)	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.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:313)	at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:157)	at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:141)	at org.pentaho.ui.xul.swt.tags.SwtButton.access$500(SwtButton.java:43)	at org.pentaho.ui.xul.swt.tags.SwtButton$4.widgetSelected(SwtButton.java:136)	at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)	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.eclipse.jface.window.Window.runEventLoop(Window.java:820)	at org.eclipse.jface.window.Window.open(Window.java:796)	at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:389)	at org.pentaho.ui.xul.swt.tags.SwtDialog.show(SwtDialog.java:318)	at org.pentaho.di.ui.core.database.dialog.XulDatabaseDialog.open(XulDatabaseDialog.java:116)	at org.pentaho.di.ui.core.database.dialog.DatabaseDialog.open(DatabaseDialog.java:60)	at org.pentaho.di.ui.trans.step.BaseStepDialog$5.widgetSelected(BaseStepDialog.java:764)	at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)	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.trans.steps.tableinput.TableInputDialog.open(TableInputDialog.java:435)	at org.pentaho.di.ui.spoon.delegates.SpoonStepsDelegate.editStep(SpoonStepsDelegate.java:125)	at org.pentaho.di.ui.spoon.Spoon.editStep(Spoon.java:8728)	at org.pentaho.di.ui.spoon.trans.TransGraph.editStep(TransGraph.java:3032)	at org.pentaho.di.ui.spoon.trans.TransGraph.mouseDoubleClick(TransGraph.java:755)	at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source)	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:1339)	at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:7939)	at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9214)	at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:653)	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:92)