diff -r e24f00fc6659 -r 65fdff10664d jaxws/src/java.xml.bind/share/classes/javax/xml/bind/Messages.properties
--- a/jaxws/src/java.xml.bind/share/classes/javax/xml/bind/Messages.properties	Sat Jun 17 11:51:31 2017 -0700
+++ b/jaxws/src/java.xml.bind/share/classes/javax/xml/bind/Messages.properties	Sun Jun 18 23:07:25 2017 +0100
@@ -44,6 +44,11 @@
 ContextFinder.NoPackageInContextPath = \
     No package name is given
 
+ContextFinder.ErrorLoadClass = \
+    Error loading class {0} listed in {1}, make sure that entries are accessable \
+    on CLASSPATH and of the form ClassName or OuterClass.InnerClass \
+    not ClassName.class or fully.qualified.ClassName
+
 PropertyException.NameValue = \
         name: {0} value: {1}
 
@@ -52,3 +57,6 @@
 
 JAXBContext.IllegalCast = \
     ClassCastException: attempting to cast {0} to {1}.  Please make sure that you are specifying the proper ClassLoader.
+
+JAXBClasses.notOpen = \
+    Package {0} with JAXB class {1} defined in a module {2} must be open to at least java.xml.bind module.