Inside beta 6, I opened a Java properties file with the following properties:
propWithExclamationPoint=Exclamation Point #Text following pound sign
propWithPoundSign=Pound Sign !Text following exclamation point
I believe beta 6 is incorrectly syntax coloring the # and the ! and everything after each of these characters as a comment.
According to
http://docs.oracle.com/cd/E23095_01/Platform.93/ATGProgGuide/html/s0204propertiesfileformat01.html, comment lines in a Java properties file must start with # and !. If a line does not, then # and ! are part of the property value.
I was able to easily correct this by turning on the "Only if first non-blank character in line" setting on the Comments tab under Java Properties > Color Coding