apache commons configuration loads property until "," character

Check Javadoc. You have to setDelimiterParsingDisabled(true) to disable parsing list of properties.

Actually propConfig.setDelimiterParsingDisabled(true) is working, but you must load the config file after this setting, for example:

propConfig = new PropertiesConfiguration();
propConfig.setDelimiterParsingDisabled(true);
propConfig.load(propertiesFile);

Settings won't work if your code like is:

propConfig = new PropertiesConfiguration(propertiesFile);
propConfig.setDelimiterParsingDisabled(true);

That behavior is clearly documented, i.e., that PropertiesConfiguration treats a value with a comma as multiple values allowing things like:

fruit=apples,banana,oranges

to be interpreted sensibly. The fix (from the doc) is to add a backslash to escape the comma, e.g.,

myKey=value\, with an escaped comma

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