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max line length for a .properties file

 
Stephen Ferg
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I use Spring and properties file. But I don't think this is a specific spring question so I choose to post it here --- what's the max line length allowed in a .properties file. I have a xyz.properties file. Some lines have about 220 characters. it works fine. Do you know if there is a max line length for such file ?

 
Paul Clapham
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There isn't one. Otherwise the part of the documentation which explains the contents of the file in excruciating detail would mention it.

Actually I didn't check the documentation before I typed that, but I'm sure it's true. It isn't in the nature of Java to have arbitrary restrictions like that. Each line is read into a String and there's no arbitrary limit on the length of a String, so there you go. In other languages you might be reading data into some kind of fixed-length string thing, but Java doesn't really have fixed-length string things.
 
Rob Spoor
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There is obviously the Integer.MAX_VALUE limit, but after checking the source code I didn't see any other limit.
 
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