New runtime error in 4.1.6: Runtime error: java.lang.NoClassDefFoundError: javax/help/HelpSetException

[yurivict]

On FreeBSD 10.3 I see this new error in version 4.1.6 when I build from the port:

$ lightzone 
Starting LightZone version 4.1.6 ...
with options :
openjdk version "1.8.0_92"
OpenJDK Runtime Environment (build 1.8.0_92-b14)
OpenJDK 64-Bit Server VM (build 25.92-b14, mixed mode)
jh.jar was not found in /usr/local/share/java/jh.jar
This is LightZone 4.1.6 ()
Running Java version 1.8.0_92
java.lang.NoClassDefFoundError: javax/help/HelpSetException
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:264)
        at com.lightcrafts.platform.Platform.<clinit>(Platform.java:407)
        at com.lightcrafts.platform.Launcher.init(Launcher.java:33)
        at com.lightcrafts.platform.linux.LinuxLauncher.main(LinuxLauncher.java:11)
Caused by: java.lang.ClassNotFoundException: javax.help.HelpSetException
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 5 more