TabularDataSupport reads a boolean System Property "jmx.tabular.data.hash.map".
If true, HashMap is used, and not LinkedHashMap.


        // Since LinkedHashMap was introduced in SE 1.4, it's conceivable even
        // if very unlikely that we might be the server of a 1.3 client. In
        // that case you'll need to set this property. See CR 6334663.
        boolean useHashMap = Boolean.getBoolean("jmx.tabular.data.hash.map");


We do not expect or support Java 1.3 clients.

This Property does not appear to be documented.

This compatibility convenience Property should be removed.

Removing old obscure properties helps simplify the platform.