If you are reading from a File that is either empty or has a single line of text
(with no line separator), org.netbeans.editor.LineSeparatorConversion will
return a default of '\n' regardless of platform.  It should return the
platform-specific line separator (Analyzer.getPlatformLS()).  

This causes a bug in our product when a user creates a blank file, types new
text into it, and then saves.  The file will always have '\n' line separators.  

Here is the change I made in LineSeparatorConversion's getInitialSeparator method:

default:
     // CLA changed default to be platform-specific default
     // separator = "\n"; // default // NOI18N
     separator = (String)Analyzer.getPlatformLS();
     break;
}

This method is called as part of Analyzer's initialRead and overwrites the
previously set (correct) default line separator value:

if (testLS) {
   doc.putProperty(BaseDocument.READ_LINE_SEPARATOR_PROP,
                
((LineSeparatorConversion.InitialSeparatorReader)reader).getInitialSeparator());