Fix #61

Author: cowtowncoder

avro/src/main/java/com/fasterxml/jackson/dataformat/avro/AvroParser.java

@@ -1,7 +1,6 @@
 package com.fasterxml.jackson.dataformat.avro;
 
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.Writer;
 import java.math.BigDecimal;
 
@@ -262,9 +261,11 @@ public JsonLocation getCurrentLocation()
     protected void convertNumberToBigDecimal() throws IOException {
         // ParserBase uses _textValue instead of _numberDouble for some reason when NR_DOUBLE is set, but _textValue is not set by setNumber()
         // Catch and use _numberDouble instead
-        if ((_numTypesValid & NR_DOUBLE) != 0 && _textValue == null) {
-            _numberBigDecimal = BigDecimal.valueOf(_numberDouble);
-            return;
+        if ((_numTypesValid & NR_DOUBLE) != 0) {
+            if (_textValue == null) {
+                _numberBigDecimal = BigDecimal.valueOf(_numberDouble);
+                return;
+            }
         }
         super.convertNumberToBigDecimal();
     }

protobuf/src/main/java/com/fasterxml/jackson/dataformat/protobuf/ProtobufParser.java

@@ -1640,6 +1640,18 @@ protected void _checkNumericValue(int expType) throws IOException
         _reportError("Current token ("+_currToken+") not numeric, can not use numeric value accessors");
     }
 
+    @Override // since 2.9
+    public boolean isNaN() {
+        if (_currToken == JsonToken.VALUE_NUMBER_FLOAT) {
+            if ((_numTypesValid & NR_DOUBLE) != 0) {
+                // 10-Mar-2017, tatu: Alas, `Double.isFinite(d)` only added in JDK 8
+                double d = _numberDouble;
+                return Double.isNaN(d) || Double.isInfinite(d);              
+            }
+        }
+        return false;
+    }
+
     protected void convertNumberToInt() throws IOException
     {
         // First, converting from long ought to be easy