java.lang.NullPointerException: This exception has no message.

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Solutions on the web

via jabref by baonn
, 1 year ago
This exception has no message.
via Coderanch by subodh joshi, 1 year ago
via Coderanch by Taraka Ramesh Alamuri, 1 year ago
This exception has no message.
via Coderanch by lokesh rajarathanam, 1 year ago
This exception has no message.
via Coderanch by Srikanth Ganji, 1 year ago
via openxava by ftoliveira
, 1 year ago
This exception has no message.
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(
at net.sf.jabref.imports.CustomImportList$Importer.getInstance(
at net.sf.jabref.imports.ImportFormatReader.resetImportFormats(
at net.sf.jabref.imports.ImportCustomizationDialog.addOrReplaceImporter(
at net.sf.jabref.imports.ImportCustomizationDialog$1.actionPerformed(
at javax.swing.AbstractButton.fireActionPerformed(
at javax.swing.AbstractButton$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.pumpOneEventForFilters(
at java.awt.EventDispatchThread.pumpEventsForFilter(
at java.awt.EventDispatchThread.pumpEventsForHierarchy(
at java.awt.EventDispatchThread.pumpEvents(
at java.awt.EventDispatchThread.pumpEvents(

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