Fix #1362

Author: cowtowncoder

release-notes/VERSION

@@ -7,6 +7,8 @@ Project: jackson-databind
 2.7.8 (not yet released)
 
 #1359: Improve `JsonNode` deserializer to create `FloatNode` if parser supports
+#1362: ObjectReader.readValues()` ignores offset and length when reading an array
+ (reported by wastevenson@github)
 
 2.7.7 (27-Aug-2016)
 

src/main/java/com/fasterxml/jackson/databind/ObjectReader.java

@@ -1438,7 +1438,8 @@ public <T> MappingIterator<T> readValues(byte[] src, int offset, int length)
         if (_dataFormatReaders != null) {
             return _detectBindAndReadValues(_dataFormatReaders.findFormat(src, offset, length), false);
         }
-        return _bindAndReadValues(_considerFilter(_parserFactory.createParser(src), true));
+        return _bindAndReadValues(_considerFilter(_parserFactory.createParser(src, offset, length),
+                true));
     }
 
     /**

src/test/java/com/fasterxml/jackson/databind/seq/ReadValuesTest.java

@@ -1,5 +1,6 @@
 package com.fasterxml.jackson.databind.seq;
 
+import java.io.*;
 import java.util.*;
 
 import com.fasterxml.jackson.core.*;
@@ -8,6 +9,7 @@
 import com.fasterxml.jackson.databind.BaseMapTest;
 import com.fasterxml.jackson.databind.MappingIterator;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectReader;
 
 @SuppressWarnings("resource")
 public class ReadValuesTest extends BaseMapTest
@@ -30,14 +32,61 @@ public boolean equals(Object o) {
     /**********************************************************
      */
 
+    private enum Source {
+        STRING,
+        INPUT_STREAM,
+        READER,
+        BYTE_ARRAY,
+        BYTE_ARRAY_OFFSET
+        ;
+    }
+    
     private final ObjectMapper MAPPER = new ObjectMapper();
 
     public void testRootBeans() throws Exception
     {
-        final String JSON = "{\"a\":3}{\"a\":27}  ";
+        for (Source src : Source.values()) {
+            _testRootBeans(src);
+        }
+    }
 
-        MappingIterator<Bean> it = MAPPER.readerFor(Bean.class).readValues(JSON);
+    private <T> MappingIterator<T> _iterator(ObjectReader r,
+            String json,
+            Source srcType) throws IOException
+    {
+        switch (srcType) {
+        case BYTE_ARRAY:
+            return r.readValues(json.getBytes("UTF-8"));
+        case BYTE_ARRAY_OFFSET:
+            {
+                ByteArrayOutputStream out = new ByteArrayOutputStream();
+                out.write(0);
+                out.write(0);
+                out.write(0);
+                out.write(json.getBytes("UTF-8"));
+                out.write(0);
+                out.write(0);
+                out.write(0);
+                byte[] b = out.toByteArray();
+                return r.readValues(b, 3, b.length-6);
+            }
+        case INPUT_STREAM:
+            return r.readValues(new ByteArrayInputStream(json.getBytes("UTF-8")));
+        case READER:
+            return r.readValues(new StringReader(json));
+        case STRING:
+        default:
+            return r.readValues(json);
+        }
+    }
+
+    private void _testRootBeans(Source srcType) throws Exception
+    {
+        final String JSON = "{\"a\":3}{\"a\":27}  ";
 
+        MappingIterator<Bean> it = _iterator(MAPPER.readerFor(Bean.class),
+                JSON, srcType);
+                MAPPER.readerFor(Bean.class).readValues(JSON);
         assertNotNull(it.getCurrentLocation());
         assertTrue(it.hasNext());
         Bean b = it.next();