Apache POI excel sheet formula reference to another sheet.

I have a excel sheet which has a formula reference to another sheet of the same workbook.
Currently, I'm on sheet1 and trying to set a formula for a cell using cell.setFormula(Sheet2[#All]).
While I'm doing that, I'm encountering the following error-
Specified named range 'Sheet2' does not exist in the current workbook. org.apache.poi.ss.formula.FormulaParseException
at org.apache.poi.ss.formula.FormulaParser.parseNonRa nge(FormulaParser.java:569)
at org.apache.poi.ss.formula.FormulaParser.parseRange able(FormulaParser.java:429)
at org.apache.poi.ss.formula.FormulaParser.parseRange Expression(FormulaParser.java:268)
at org.apache.poi.ss.formula.FormulaParser.parseSimpl eFactor(FormulaParser.java:1119)
at org.apache.poi.ss.formula.FormulaParser.percentFac tor(FormulaParser.java:1079)
at org.apache.poi.ss.formula.FormulaParser.powerFacto r(FormulaParser.java:1066)
at org.apache.poi.ss.formula.FormulaParser.Term(Formu laParser.java:1426)
at org.apache.poi.ss.formula.FormulaParser.additiveEx pression(FormulaParser.java:1526)
at org.apache.poi.ss.formula.FormulaParser.concatExpr ession(FormulaParser.java:1510)
at org.apache.poi.ss.formula.FormulaParser.comparison Expression(FormulaParser.java:1467)
at org.apache.poi.ss.formula.FormulaParser.Arguments( FormulaParser.java:1051)
at org.apache.poi.ss.formula.FormulaParser.function(F ormulaParser.java:936)


However, in the workbook, I have created the necessary sheet. The sheet name is 'Sheet2'. But still the code is not able to refer to that sheet.
Please let me know if there is a way to fix this issue or any workaround.

Thanks.