Change ternary operation to if statement for cross compitibility between java and .net

DEVSIX-3538

Author: glenn.volckaert

kernel/src/main/java/com/itextpdf/kernel/pdf/function/PdfType3Function.java

@@ -298,7 +298,12 @@ private List<IPdfFunction> checkAndGetFunctions(PdfArray functionsArray) {
         if (functionsArray == null || functionsArray.size() == 0) {
             throw new PdfException(KernelExceptionMessageConstant.INVALID_TYPE_3_FUNCTION_NULL_FUNCTIONS);
         }
-        Integer tempOutputSize = getRange() == null ? (Integer) null : getOutputSize();
+
+        Integer tempOutputSize = null;
+        if (getRange()!= null)
+        {
+            tempOutputSize = getOutputSize();
+        }
         final List<IPdfFunction> tempFunctions = new ArrayList<>();
         for (PdfObject funcObj : functionsArray) {
             if (!(funcObj instanceof PdfDictionary)) {