This happens when an old JDK is used to run maven. Oracle once updated the Root certificates in the JDK. The certificates used to validate the default engine download page is no longer valid. To verify the JDK you are using inspect your environment variables: - windows: cmd > `echo %JAVA_HOME%%JAVA_HOME%` - linuxs: bash > `echo $JAVA_HOME` - or just fire `javac -version` If it points to binaries older than 1.8.0_171 you should install the latest 1.8 JDK. Ensure that you update the JAVA_HOME variable to the newly installed JDK afterwards.

This happens when an old JDK is used to run maven. Oracle once updated the Root certificates in the JDK. The certificates used to validate the default engine download page is no longer valid. To verify the JDK you are using inspect your environment variables: - windows: cmd > `echo %JAVA_HOME% - linuxs: bash > `echo $JAVA_HOME` - or just fire `javac -version` If it points to binaries older than 1.8.0_171 you should install the latest 1.8 JDK. Ensure that you update the JAVA_HOME variable to the newly installed JDK afterwards.