Fix #166: deserialize OffsetDateTime.MIN or OffsetDateTime.MAX with ADJUST_DATES_TO_CONTEXT_TIME_ZONE enabled (#176)

* Do not adjust Time Zone if value is OffsetDateTime.MIN or OffsetDateTime.MAX with ADJUST_DATES_TO_CONTEXT_TIME_ZONE enabled.

* deleted private e-mail

* Fixing e-mail.

Author: kupci

datetime/README.md

@@ -23,7 +23,7 @@ more ambiguous integer types are read as fractional seconds without a decimal po
 
 For TimeZone handling, `ADJUST_DATES_TO_CONTEXT_TIME_ZONE` (default: true) specifies whether the context provided by `java.time.TimeZone` 
 'SerializedProvider#getTimeZone()' should be used to adjust Date/Time values on deserialization, even if the value itself
-contains timezone information. If disabled, it will only be used if the value itself does not contain any TimeZone information.
+contains timezone information. If the value is `OffsetDateTime.MIN` or `OffsetDateTime.MAX`, the Date/Time value will not be adjusted. If disabled, it will only be used if the value itself does not contain any TimeZone information.
 
 Finally, there are two features that apply to array handling. `UNWRAP_SINGLE_VALUE_ARRAYS` (default: false) allows auto-conversion from single-element arrays to non-JSON-array 
 values. If the JSON value contains more than one element in the array, deserialization will still fail. `ACCEPT_EMPTY_ARRAY_AS_NULL_OBJECT` (default: false) determines whether empty Array value ("[ ]" in JSON) is accepted 

datetime/src/main/java/com/fasterxml/jackson/datatype/jsr310/deser/InstantDeserializer.java

@@ -73,7 +73,7 @@ public class InstantDeserializer<T extends Temporal>
             OffsetDateTime::from,
             a -> OffsetDateTime.ofInstant(Instant.ofEpochMilli(a.value), a.zoneId),
             a -> OffsetDateTime.ofInstant(Instant.ofEpochSecond(a.integer, a.fraction), a.zoneId),
-            (d, z) -> d.withOffsetSameInstant(z.getRules().getOffset(d.toLocalDateTime())),
+            (d, z) -> (d.isEqual(OffsetDateTime.MIN) || d.isEqual(OffsetDateTime.MAX) ? d : d.withOffsetSameInstant(z.getRules().getOffset(d.toLocalDateTime()))),
             true // yes, replace zero offset with Z
     );
 

datetime/src/test/java/com/fasterxml/jackson/datatype/jsr310/deser/OffsetDateTimeDeserTest.java

@@ -656,6 +656,45 @@ public void testStrictDeserializeFromEmptyString() throws Exception {
         objectReader.readValue(valueFromEmptyStr);
     }
 
+    // [module-java8#166]
+    @Test
+    public void testDeserializationNoAdjustIfMIN() throws Exception
+    {
+        OffsetDateTime date = OffsetDateTime.MIN;
+        ObjectMapper m = newMapper()
+                .configure(DeserializationFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE, true)
+                .setTimeZone(TimeZone.getTimeZone(Z1))
+                .addMixIn(Temporal.class, MockObjectConfiguration.class);
+        Temporal value = m.readValue(
+                "[\"" + OffsetDateTime.class.getName() + "\",\"" + FORMATTER.format(date) + "\"]", Temporal.class
+        );
+
+        assertNotNull("The value should not be null.", value);
+        assertTrue("The value should be an OffsetDateTime.", value instanceof OffsetDateTime);
+        OffsetDateTime actualValue = (OffsetDateTime) value;
+        assertIsEqual(date, actualValue);
+        assertEquals(date.getOffset(),actualValue.getOffset());
+    }
+
+    @Test
+    public void testDeserializationNoAdjustIfMAX() throws Exception
+    {
+        OffsetDateTime date = OffsetDateTime.MAX;
+        ObjectMapper m = newMapper()
+                .configure(DeserializationFeature.ADJUST_DATES_TO_CONTEXT_TIME_ZONE, true)
+                .setTimeZone(TimeZone.getTimeZone(Z1))
+                .addMixIn(Temporal.class, MockObjectConfiguration.class);
+        Temporal value = m.readValue(
+                "[\"" + OffsetDateTime.class.getName() + "\",\"" + FORMATTER.format(date) + "\"]", Temporal.class
+        );
+
+        assertNotNull("The value should not be null.", value);
+        assertTrue("The value should be an OffsetDateTime.", value instanceof OffsetDateTime);
+        OffsetDateTime actualValue = (OffsetDateTime) value;
+        assertIsEqual(date, actualValue);
+        assertEquals(date.getOffset(),actualValue.getOffset());
+    }
+
     private static void assertIsEqual(OffsetDateTime expected, OffsetDateTime actual)
     {
         assertTrue("The value is not correct. Expected timezone-adjusted <" + expected + ">, actual <" + actual + ">.",

release-notes/CREDITS-2.x

@@ -103,3 +103,7 @@ Arturas Gusevas (agusevas@github)
 Samantha Williamson (samwill@github)
   * Contributed fix to #148: Allow strict `LocalDate` parsing
    (2.11.0)
+
+Moritz Orth (morth@github.com)
+  * Reported and suggested fix for #166: Cannot deserialize OffsetDateTime.MIN and
+   OffsetDateTime.MAX with ADJUST_DATES_TO_CONTEXT_TIME_ZONE enabled (2.12)