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  1. ,
    via github.com by Unknown author

    This is because SLF4J jar file needs to be added into your application's classpath. In order to fix this issue you have to provide one of the various SLF4J implementation .jar files in the classpath, as well as the interface .jar file.

  2. ,
    Expert tip

    If you're using Hibernate, this indicates you're missing FasterXML Classmate dependency, which you can add to your dependencies. To add it, the groupId is com.fasterxml and artifactId is Classmate.

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java.lang.ClassNotFoundException: org.slf4j.LoggerFactory	at java.net.URLClassLoader$1.run(Unknown Source)	at java.net.URLClassLoader$1.run(Unknown Source)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at java.lang.ClassLoader.loadClass(Unknown Source)	at org.pentaho.di.core.plugins.KettleURLClassLoader.loadClass(KettleURLClassLoader.java:98)	at java.lang.ClassLoader.loadClass(Unknown Source)	at org.eobjects.analyzer.job.concurrent.SingleThreadedTaskRunner.(SingleThreadedTaskRunner.java:28)	at org.eobjects.analyzer.configuration.AnalyzerBeansConfigurationImpl.defaultTaskRunner(AnalyzerBeansConfigurationImpl.java:50)	at org.eobjects.analyzer.configuration.AnalyzerBeansConfigurationImpl.(AnalyzerBeansConfigurationImpl.java:70)	at org.pentaho.di.profiling.datacleaner.ModelerHelper.profileStep(ModelerHelper.java:295)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.pentaho.ui.xul.impl.AbstractXulDomContainer.invoke(AbstractXulDomContainer.java:329)	at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:139)	at org.pentaho.ui.xul.impl.AbstractXulComponent.invoke(AbstractXulComponent.java:123)	at org.pentaho.ui.xul.jface.tags.JfaceMenuitem.access$100(JfaceMenuitem.java:26)	at org.pentaho.ui.xul.jface.tags.JfaceMenuitem$1.run(JfaceMenuitem.java:88)	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:545)	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:490)	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:402)	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(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.pentaho.commons.launcher.Launcher.main(Launcher.java:134)