From 8296a5ede082e4b16c23d9a1618097b2713fc9c2 Mon Sep 17 00:00:00 2001
From: labkey-willm <willm@labkey.com>
Date: Thu, 19 Oct 2023 17:24:59 -0700
Subject: [PATCH] backport NAb fix

---
 api/src/org/labkey/api/util/JsonUtil.java                  | 2 +-
 core/src/org/labkey/core/statistics/ParameterCurveFit.java | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/api/src/org/labkey/api/util/JsonUtil.java b/api/src/org/labkey/api/util/JsonUtil.java
index 81baf1a51c0..2e3dae86e2f 100644
--- a/api/src/org/labkey/api/util/JsonUtil.java
+++ b/api/src/org/labkey/api/util/JsonUtil.java
@@ -238,7 +238,7 @@ public static void safePut(JSONObject json, String key, Number value)
         json.put(key, translateNumber(value));
     }
 
-    private static Object translateNumber(Number value)
+    public static Object translateNumber(Number value)
     {
         if (value instanceof Double d)
         {
diff --git a/core/src/org/labkey/core/statistics/ParameterCurveFit.java b/core/src/org/labkey/core/statistics/ParameterCurveFit.java
index a49bc976391..94b61235b9a 100644
--- a/core/src/org/labkey/core/statistics/ParameterCurveFit.java
+++ b/core/src/org/labkey/core/statistics/ParameterCurveFit.java
@@ -214,7 +214,7 @@ protected SigmoidalParameters calculateFitParameters(double minValue, double max
             {
                 double absoluteCutoff = min + (0.5 * (max - min));
                 double relativeEC50 = getInterpolatedCutoffXValue(absoluteCutoff);
-                if (relativeEC50 != Double.POSITIVE_INFINITY && relativeEC50 != Double.NEGATIVE_INFINITY)
+                if (!Double.isInfinite(relativeEC50) && !Double.isNaN(relativeEC50))
                 {
                     parameters.max = max;
                     parameters.inflection = relativeEC50;