Fix #202

Author: cowtowncoder

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

@@ -46,7 +46,7 @@ public class LocalDateTimeDeserializer
 
     public static final LocalDateTimeDeserializer INSTANCE = new LocalDateTimeDeserializer();
 
-    private LocalDateTimeDeserializer() {
+    protected LocalDateTimeDeserializer() { // was private before 2.12
         this(DEFAULT_FORMATTER);
     }
 

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

@@ -40,7 +40,7 @@ public class LocalTimeDeserializer extends JSR310DateTimeDeserializerBase<LocalT
 
     public static final LocalTimeDeserializer INSTANCE = new LocalTimeDeserializer();
 
-    private LocalTimeDeserializer() {
+    protected LocalTimeDeserializer() { // was private before 2.12
         this(DEFAULT_FORMATTER);
     }
 

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

@@ -18,7 +18,17 @@ public class MonthDayDeserializer extends JSR310DateTimeDeserializerBase<MonthDa
 {
     private static final long serialVersionUID = 1L;
 
-    public static final MonthDayDeserializer INSTANCE = new MonthDayDeserializer(null);
+    public static final MonthDayDeserializer INSTANCE = new MonthDayDeserializer();
+
+    /**
+     * NOTE: only {@code public} so that use via annotations (see [modules-java8#202])
+     * is possible
+     *
+     * @since 2.12
+     */
+    public MonthDayDeserializer() {
+        this(null);
+    }
 
     public MonthDayDeserializer(DateTimeFormatter formatter) {
         super(MonthDay.class, formatter);

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

@@ -37,7 +37,7 @@ public class OffsetTimeDeserializer extends JSR310DateTimeDeserializerBase<Offse
 
     public static final OffsetTimeDeserializer INSTANCE = new OffsetTimeDeserializer();
 
-    private OffsetTimeDeserializer() {
+    protected OffsetTimeDeserializer() { // was private before 2.12
         this(DateTimeFormatter.ISO_OFFSET_TIME);
     }
 

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

@@ -39,7 +39,11 @@ public class YearDeserializer extends JSR310DateTimeDeserializerBase<Year>
 
     public static final YearDeserializer INSTANCE = new YearDeserializer();
 
-    private YearDeserializer() {
+    /**
+     * NOTE: only {@code public} so that use via annotations (see [modules-java8#202])
+     * is possible
+     */
+    public YearDeserializer() { // public since 2.12
         this(null);
     }
 

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

@@ -39,7 +39,11 @@ public class YearMonthDeserializer extends JSR310DateTimeDeserializerBase<YearMo
 
     public static final YearMonthDeserializer INSTANCE = new YearMonthDeserializer();
 
-    private YearMonthDeserializer()
+    /**
+     * NOTE: only {@code public} so that use via annotations (see [modules-java8#202])
+     * is possible
+     */
+    public YearMonthDeserializer() // public since 2.12
     {
         this(DateTimeFormatter.ofPattern("uuuu-MM"));
     }

datetime/src/main/java/com/fasterxml/jackson/datatype/jsr310/ser/DurationSerializer.java

@@ -65,7 +65,7 @@ public class DurationSerializer extends JSR310FormattedSerializerBase<Duration>
      */
     private DurationUnitConverter _durationUnitConverter;
 
-    private DurationSerializer() {
+    protected DurationSerializer() { // was private before 2.12
         super(Duration.class);
     }
 

datetime/src/main/java/com/fasterxml/jackson/datatype/jsr310/ser/MonthDaySerializer.java

@@ -44,7 +44,7 @@ public class MonthDaySerializer extends JSR310FormattedSerializerBase<MonthDay>
 
     public static final MonthDaySerializer INSTANCE = new MonthDaySerializer();
 
-    private MonthDaySerializer() {
+    protected MonthDaySerializer() { // was private before 2.12
         this(null);
     }
 

datetime/src/main/java/com/fasterxml/jackson/datatype/jsr310/ser/YearMonthSerializer.java

@@ -44,7 +44,7 @@ public class YearMonthSerializer extends JSR310FormattedSerializerBase<YearMonth
 
     public static final YearMonthSerializer INSTANCE = new YearMonthSerializer();
 
-    private YearMonthSerializer() {
+    protected YearMonthSerializer() { // was private before 2.12
         this(null);
     }
 

datetime/src/moditect/module-info.java

@@ -10,6 +10,13 @@
     exports com.fasterxml.jackson.datatype.jsr310.ser;
     exports com.fasterxml.jackson.datatype.jsr310.ser.key;
 
+    // 27-Jan-2021, tatu: Likely needed for access to (de)serializers via
+    //    annotations (see [modules-java#202])
+    opens com.fasterxml.jackson.datatype.jsr310.deser;
+    opens com.fasterxml.jackson.datatype.jsr310.deser.key;
+    opens com.fasterxml.jackson.datatype.jsr310.ser;
+    opens com.fasterxml.jackson.datatype.jsr310.ser.key;
+
     provides com.fasterxml.jackson.databind.Module with
         com.fasterxml.jackson.datatype.jsr310.JSR310Module;
 }