I have a p2.inf with a dozen or so jvmargs that I want added, when
content.xml is generated it stops after the fourth or so item. Is there a
limit to the number of chars for instructions.install? If so how do I add
more? Also when content.xml is generated it places all the addJvmArg's in a
single line, how can add crlf after each?
p2 does not impose any limit. Maybe this limit comes from the Properties file format, or the properties file is not properly formatted. Maybe try reading it with a simple piece of Java code using the Properties class to see what happens.
Otherwise you would have to look at the p2 code that loads this file to figure out what is going on.