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

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ava.lang.NullPointerException:
at java.io.FileInputStream.(FileInputStream.java:103)
at java.io.FileInputStream.(FileInputStream.java:66)
at com.epam.sono.business.common.security.AbstractCertexAdapterService.importGDMSKeysWithCertsInFiles(AbstractCertexAdapterService.java:383)
at com.epam.sono.app.delegate.ClientCertexAdapterDelegateImpl.importGDMSKeysWithCertsInFiles(ClientCertexAdapterDelegateImpl.java:558)
at com.epam.sono.desktop2.modules.security.ChangePasswordScreen.processNext(ChangePasswordScreen.java:139)
at com.epam.sono.desktop2.modules.security.AbstractWizardScreen.processButtonPressed(AbstractWizardScreen.java:99)
at com.epam.sono.desktop2.api.combined.ZMultiPageWizard$ButtonListener.actionPerformed(ZMultiPageWizard.java:200)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:5517)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3129)
at java.awt.Component.processEvent(Component.java:5282)
at java.awt.Container.processEvent(Container.java:1966)
at java.awt.Component.dispatchEventImpl(Component.java:3984)
at java.awt.Container.dispatchEventImpl(Container.java:2024)
at java.awt.Component.dispatchEvent(Component.java:3819)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
at java.awt.Container.dispatchEventImpl(Container.java:2010)
at java.awt.Window.dispatchEventImpl(Window.java:1791)
at java.awt.Component.dispatchEvent(Component.java:3819)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at com.epam.sono.desktop2.shell.health.EventQueueProxy.dispatchEvent(EventQueueProxy.java:30)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

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