UnitsNetBaseJsonConverter minor bug fix for compatibility with UnitsNet 6.0.0-pre017

June Meservy · June Meservy · commit d7464572e9d5 · 2025-11-20T11:07:30.000+01:00
diff --git a/UnitsNet.Serialization.JsonNet/UnitsNetBaseJsonConverter.cs b/UnitsNet.Serialization.JsonNet/UnitsNetBaseJsonConverter.cs
@@ -96,7 +96,12 @@ protected IQuantity ConvertValueUnit(ValueUnit valueUnit)
 
             if (registeredQuantity is not null)
             {
-                return (IQuantity)Activator.CreateInstance(registeredQuantity, valueUnit.Value, unit)!;
+                IQuantity? instance = (IQuantity?)Activator.CreateInstance(registeredQuantity, valueUnit.Value, unit);
+                if (instance is null)
+                {
+                    throw new Exception("Unable to convert value unit, instance is null.");
+                }
+                return instance;
             }
 
             return Quantity.From(valueUnit.Value, unit);

Original file line number	Diff line number	Diff line change
`@@ -96,7 +96,12 @@ protected IQuantity ConvertValueUnit(ValueUnit valueUnit)`
`96`	`96`
`97`	`97`	`if (registeredQuantity is not null)`
`98`	`98`	`{`
`99`		`- return (IQuantity)Activator.CreateInstance(registeredQuantity, valueUnit.Value, unit)!;`
	`99`	`+ IQuantity? instance = (IQuantity?)Activator.CreateInstance(registeredQuantity, valueUnit.Value, unit);`
	`100`	`+ if (instance is null)`
	`101`	`+ {`
	`102`	`+ throw new Exception("Unable to convert value unit, instance is null.");`
	`103`	`+ }`
	`104`	`+ return instance;`
`100`	`105`	`}`
`101`	`106`
`102`	`107`	`return Quantity.From(valueUnit.Value, unit);`