src/main/java/org/nustaq/serialization/FSTConfiguration.java
public FSTConfiguration registerCrossPlatformClassMapping( String[][] keysAndVals ) {
        for (int i = 0; i < keysAndVals.length; i++) {
            String[] keysAndVal = keysAndVals[i];
            registerCrossPlatformClassMapping(keysAndVal[0], keysAndVal[1]);
        }
        return this;
    }
public FSTConfiguration registerCrossPlatformClassMapping( String[][] keysAndVals ) {
        for (int i = 0; i < keysAndVals.length; i++) {
            String[] keysAndVal = keysAndVals[i];
            registerCrossPlatformClassMapping(keysAndVal[0], keysAndVal[1]);
        }
        return this;
    }
init right after creation of configuration, not during operation as it is not threadsafe regarding mutation
currently only for minbin serialization

@param keysAndVals { { "symbolicName", "fullQualifiedClazzName" }, .. }