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

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Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

Solutions on the web

via GitHub by anthonyanjorin
, 1 year ago
This exception has no message.
via GitHub by parrt
, 1 year ago
This exception has no message.
via GitHub by miracle2k
, 1 year ago
This exception has no message.
via Oracle Community by 829803, 1 year ago
This exception has no message.
via Stack Overflow by Reticality
, 2 years ago
This exception has no message.
via GitHub by madhephaestus
, 2 years ago
at java.util.Hashtable.put(
at org.codehaus.plexus.interpolation.os.OperatingSystemUtils.getSystemEnvVars(
at org.codehaus.plexus.interpolation.EnvarBasedValueSource.getEnvars(
at org.codehaus.plexus.interpolation.EnvarBasedValueSource.(
at org.apache.maven.settings.building.DefaultSettingsBuilder.interpolate(
at org.apache.maven.cli.configuration.SettingsXmlConfigurationProcessor.process(
at org.apache.maven.cli.MavenCli.configure(
at org.apache.maven.cli.MavenCli.doMain(
at org.apache.maven.cli.MavenCli.main(
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
at java.lang.reflect.Method.invoke(
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(

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