java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at dhfl_idecimal.decimal_dhfl.calculator.util.UpdateInput.updateInputParamForWealthPlusAce(UpdateInput.java:23)
at dhfl_idecimal.decimal_dhfl.calculator.Calculator.processWealthPlusAce(Calculator.java:38)
at dhfl_idecimal.decimal_dhfl.calculator.Calculator.main(Calculator.java:167)

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