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

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via GitHub by devel-bobm
, 1 year ago
This exception has no message.
via GitHub by devel-bobm
, 1 year ago
This exception has no message.
via GitHub by devel-bobm
, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at at.jta.Regor.readValue(Regor.java:989)
at at.jta.Regor.readValueAsString(Regor.java:971)
at jmri.util.PortNameMapper.getDetailsFromWinRegistry(PortNameMapper.java:99)
at jmri.util.PortNameMapper.getWindowsSerialPortNames(PortNameMapper.java:65)
at jmri.util.PortNameMapper.(PortNameMapper.java:41)
at jmri.jmrix.AbstractSerialConnectionConfig.updateSerialPortNames(AbstractSerialConnectionConfig.java:593)
at jmri.jmrix.AbstractSerialConnectionConfig.refreshPortBox(AbstractSerialConnectionConfig.java:265)
at jmri.jmrix.AbstractSerialConnectionConfig.loadDetails(AbstractSerialConnectionConfig.java:338)
at jmri.jmrix.JmrixConfigPane.selection(JmrixConfigPane.java:334)
at jmri.jmrix.JmrixConfigPane.(JmrixConfigPane.java:280)
at jmri.jmrix.JmrixConfigPane.createPanel(JmrixConfigPane.java:89)
at jmri.jmrix.JmrixConfigPane.instance(JmrixConfigPane.java:60)
at jmri.jmrix.swing.ConnectionsPreferencesPanel.(ConnectionsPreferencesPanel.java:72)
at jmri.jmrix.swing.ConnectionsPreferencesPanel.(ConnectionsPreferencesPanel.java:85)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at java.util.ServiceLoader$LazyIterator.nextService(Unknown Source)
at java.util.ServiceLoader$LazyIterator.next(Unknown Source)
at java.util.ServiceLoader$1.next(Unknown Source)
at apps.gui3.TabbedPreferences.init(TabbedPreferences.java:160)
at apps.Apps$3.lambda$0(Apps.java:376)

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.

Know the solutions? Share your knowledge to help other developers to debug faster.