8046416: Unable to parse an Instant from fields

Summary: Fix Instant parsing
Reviewed-by: rriggs

src/share/classes/java/time/Instant.java

@@ -375,7 +375,7 @@ public final class Instant
             return Instant.ofEpochSecond(instantSecs, nanoOfSecond);
         } catch (DateTimeException ex) {
             throw new DateTimeException("Unable to obtain Instant from TemporalAccessor: " +
-                    temporal + " of type " + temporal.getClass().getName());
+                    temporal + " of type " + temporal.getClass().getName(), ex);
         }
     }
 

src/share/classes/java/time/format/DateTimeFormatterBuilder.java

@@ -3286,7 +3286,7 @@ public final class DateTimeFormatterBuilder {
             } catch (RuntimeException ex) {
                 return ~position;
             }
-            int successPos = text.length();
+            int successPos = pos;
             successPos = context.setParsedField(INSTANT_SECONDS, instantSecs, position, successPos);
             return context.setParsedField(NANO_OF_SECOND, nano, position, successPos);
         }

src/share/classes/java/time/format/Parsed.java

@@ -66,6 +66,7 @@ import static java.time.temporal.ChronoField.CLOCK_HOUR_OF_AMPM;
 import static java.time.temporal.ChronoField.CLOCK_HOUR_OF_DAY;
 import static java.time.temporal.ChronoField.HOUR_OF_AMPM;
 import static java.time.temporal.ChronoField.HOUR_OF_DAY;
+import static java.time.temporal.ChronoField.INSTANT_SECONDS;
 import static java.time.temporal.ChronoField.MICRO_OF_DAY;
 import static java.time.temporal.ChronoField.MICRO_OF_SECOND;
 import static java.time.temporal.ChronoField.MILLI_OF_DAY;
@@ -74,14 +75,17 @@ import static java.time.temporal.ChronoField.MINUTE_OF_DAY;
 import static java.time.temporal.ChronoField.MINUTE_OF_HOUR;
 import static java.time.temporal.ChronoField.NANO_OF_DAY;
 import static java.time.temporal.ChronoField.NANO_OF_SECOND;
+import static java.time.temporal.ChronoField.OFFSET_SECONDS;
 import static java.time.temporal.ChronoField.SECOND_OF_DAY;
 import static java.time.temporal.ChronoField.SECOND_OF_MINUTE;
 
 import java.time.DateTimeException;
+import java.time.Instant;
 import java.time.LocalDate;
 import java.time.LocalTime;
 import java.time.Period;
 import java.time.ZoneId;
+import java.time.ZoneOffset;
 import java.time.chrono.ChronoLocalDate;
 import java.time.chrono.ChronoLocalDateTime;
 import java.time.chrono.ChronoZonedDateTime;
@@ -241,12 +245,15 @@ final class Parsed implements TemporalAccessor {
         resolveTimeLenient();
         crossCheck();
         resolvePeriod();
+        resolveFractional();
+        resolveInstant();
         return this;
     }
 
     //-----------------------------------------------------------------------
     private void resolveFields() {
         // resolve ChronoField
+        resolveInstantFields();
         resolveDateFields();
         resolveTimeFields();
 
@@ -300,6 +307,7 @@ final class Parsed implements TemporalAccessor {
             }
             // if something changed then have to redo ChronoField resolve
             if (changedCount > 0) {
+                resolveInstantFields();
                 resolveDateFields();
                 resolveTimeFields();
             }
@@ -315,6 +323,29 @@ final class Parsed implements TemporalAccessor {
         }
     }
 
+    //-----------------------------------------------------------------------
+    private void resolveInstantFields() {
+        // resolve parsed instant seconds to date and time if zone available
+        if (fieldValues.containsKey(INSTANT_SECONDS)) {
+            if (zone != null) {
+                resolveInstantFields0(zone);
+            } else {
+                Long offsetSecs = fieldValues.get(OFFSET_SECONDS);
+                if (offsetSecs != null) {
+                    ZoneOffset offset = ZoneOffset.ofTotalSeconds(offsetSecs.intValue());
+                    resolveInstantFields0(offset);
+                }
+            }
+        }
+    }
+
+    private void resolveInstantFields0(ZoneId selectedZone) {
+        Instant instant = Instant.ofEpochSecond(fieldValues.remove(INSTANT_SECONDS));
+        ChronoZonedDateTime<?> zdt = chrono.zonedDateTime(instant, selectedZone);
+        updateCheckConflict(zdt.toLocalDate());
+        updateCheckConflict(INSTANT_SECONDS, SECOND_OF_DAY, (long) zdt.toLocalTime().toSecondOfDay());
+    }
+
     //-----------------------------------------------------------------------
     private void resolveDateFields() {
         updateCheckConflict(chrono.resolveDate(fieldValues, resolverStyle));
@@ -533,6 +564,42 @@ final class Parsed implements TemporalAccessor {
         }
     }
 
+    private void resolveFractional() {
+        // ensure fractional seconds available as ChronoField requires
+        // resolveTimeLenient() will have merged MICRO_OF_SECOND/MILLI_OF_SECOND to NANO_OF_SECOND
+        if (time == null &&
+                (fieldValues.containsKey(INSTANT_SECONDS) ||
+                    fieldValues.containsKey(SECOND_OF_DAY) ||
+                    fieldValues.containsKey(SECOND_OF_MINUTE))) {
+            if (fieldValues.containsKey(NANO_OF_SECOND)) {
+                long nos = fieldValues.get(NANO_OF_SECOND);
+                fieldValues.put(MICRO_OF_SECOND, nos / 1000);
+                fieldValues.put(MILLI_OF_SECOND, nos / 1000000);
+            } else {
+                fieldValues.put(NANO_OF_SECOND, 0L);
+                fieldValues.put(MICRO_OF_SECOND, 0L);
+                fieldValues.put(MILLI_OF_SECOND, 0L);
+            }
+        }
+    }
+
+    private void resolveInstant() {
+        // add instant seconds if we have date, time and zone
+        if (date != null && time != null) {
+            if (zone != null) {
+                long instant = date.atTime(time).atZone(zone).getLong(ChronoField.INSTANT_SECONDS);
+                fieldValues.put(INSTANT_SECONDS, instant);
+            } else {
+                Long offsetSecs = fieldValues.get(OFFSET_SECONDS);
+                if (offsetSecs != null) {
+                    ZoneOffset offset = ZoneOffset.ofTotalSeconds(offsetSecs.intValue());
+                    long instant = date.atTime(time).atZone(offset).getLong(ChronoField.INSTANT_SECONDS);
+                    fieldValues.put(INSTANT_SECONDS, instant);
+                }
+            }
+        }
+    }
+
     private void updateCheckConflict(LocalTime timeToSet, Period periodToSet) {
         if (time != null) {
             if (time.equals(timeToSet) == false) {

test/java/time/tck/java/time/format/TCKDateTimeParseResolver.java

@@ -76,6 +76,7 @@ import static java.time.temporal.ChronoField.EPOCH_DAY;
 import static java.time.temporal.ChronoField.ERA;
 import static java.time.temporal.ChronoField.HOUR_OF_AMPM;
 import static java.time.temporal.ChronoField.HOUR_OF_DAY;
+import static java.time.temporal.ChronoField.INSTANT_SECONDS;
 import static java.time.temporal.ChronoField.MICRO_OF_DAY;
 import static java.time.temporal.ChronoField.MICRO_OF_SECOND;
 import static java.time.temporal.ChronoField.MILLI_OF_DAY;
@@ -93,11 +94,13 @@ import static java.time.temporal.ChronoField.YEAR_OF_ERA;
 import static org.testng.Assert.assertEquals;
 import static org.testng.Assert.fail;
 
+import java.time.Instant;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.LocalTime;
 import java.time.Period;
 import java.time.ZoneId;
+import java.time.ZoneOffset;
 import java.time.ZonedDateTime;
 import java.time.chrono.ChronoLocalDate;
 import java.time.chrono.ChronoLocalDateTime;
@@ -1159,4 +1162,102 @@ public class TCKDateTimeParseResolver {
         }
     };
 
+    //-------------------------------------------------------------------------
+    // SPEC: ChronoField.INSTANT_SECONDS
+    @Test
+    public void test_parse_fromField_InstantSeconds() {
+        DateTimeFormatter fmt = new DateTimeFormatterBuilder()
+            .appendValue(INSTANT_SECONDS).toFormatter();
+        TemporalAccessor acc = fmt.parse("86402");
+        Instant expected = Instant.ofEpochSecond(86402);
+        assertEquals(acc.isSupported(INSTANT_SECONDS), true);
+        assertEquals(acc.isSupported(NANO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MICRO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MILLI_OF_SECOND), true);
+        assertEquals(acc.getLong(INSTANT_SECONDS), 86402L);
+        assertEquals(acc.getLong(NANO_OF_SECOND), 0L);
+        assertEquals(acc.getLong(MICRO_OF_SECOND), 0L);
+        assertEquals(acc.getLong(MILLI_OF_SECOND), 0L);
+        assertEquals(Instant.from(acc), expected);
+    }
+
+    @Test
+    public void test_parse_fromField_InstantSeconds_NanoOfSecond() {
+        DateTimeFormatter fmt = new DateTimeFormatterBuilder()
+            .appendValue(INSTANT_SECONDS).appendLiteral('.').appendValue(NANO_OF_SECOND).toFormatter();
+        TemporalAccessor acc = fmt.parse("86402.123456789");
+        Instant expected = Instant.ofEpochSecond(86402, 123456789);
+        assertEquals(acc.isSupported(INSTANT_SECONDS), true);
+        assertEquals(acc.isSupported(NANO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MICRO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MILLI_OF_SECOND), true);
+        assertEquals(acc.getLong(INSTANT_SECONDS), 86402L);
+        assertEquals(acc.getLong(NANO_OF_SECOND), 123456789L);
+        assertEquals(acc.getLong(MICRO_OF_SECOND), 123456L);
+        assertEquals(acc.getLong(MILLI_OF_SECOND), 123L);
+        assertEquals(Instant.from(acc), expected);
+    }
+
+    // SPEC: ChronoField.SECOND_OF_DAY
+    @Test
+    public void test_parse_fromField_SecondOfDay() {
+        DateTimeFormatter fmt = new DateTimeFormatterBuilder()
+            .appendValue(SECOND_OF_DAY).toFormatter();
+        TemporalAccessor acc = fmt.parse("864");
+        assertEquals(acc.isSupported(SECOND_OF_DAY), true);
+        assertEquals(acc.isSupported(NANO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MICRO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MILLI_OF_SECOND), true);
+        assertEquals(acc.getLong(SECOND_OF_DAY), 864L);
+        assertEquals(acc.getLong(NANO_OF_SECOND), 0L);
+        assertEquals(acc.getLong(MICRO_OF_SECOND), 0L);
+        assertEquals(acc.getLong(MILLI_OF_SECOND), 0L);
+    }
+
+    @Test
+    public void test_parse_fromField_SecondOfDay_NanoOfSecond() {
+        DateTimeFormatter fmt = new DateTimeFormatterBuilder()
+            .appendValue(SECOND_OF_DAY).appendLiteral('.').appendValue(NANO_OF_SECOND).toFormatter();
+        TemporalAccessor acc = fmt.parse("864.123456789");
+        assertEquals(acc.isSupported(SECOND_OF_DAY), true);
+        assertEquals(acc.isSupported(NANO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MICRO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MILLI_OF_SECOND), true);
+        assertEquals(acc.getLong(SECOND_OF_DAY), 864L);
+        assertEquals(acc.getLong(NANO_OF_SECOND), 123456789L);
+        assertEquals(acc.getLong(MICRO_OF_SECOND), 123456L);
+        assertEquals(acc.getLong(MILLI_OF_SECOND), 123L);
+    }
+
+    // SPEC: ChronoField.SECOND_OF_MINUTE
+    @Test
+    public void test_parse_fromField_SecondOfMinute() {
+        DateTimeFormatter fmt = new DateTimeFormatterBuilder()
+            .appendValue(SECOND_OF_MINUTE).toFormatter();
+        TemporalAccessor acc = fmt.parse("32");
+        assertEquals(acc.isSupported(SECOND_OF_MINUTE), true);
+        assertEquals(acc.isSupported(NANO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MICRO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MILLI_OF_SECOND), true);
+        assertEquals(acc.getLong(SECOND_OF_MINUTE), 32L);
+        assertEquals(acc.getLong(NANO_OF_SECOND), 0L);
+        assertEquals(acc.getLong(MICRO_OF_SECOND), 0L);
+        assertEquals(acc.getLong(MILLI_OF_SECOND), 0L);
+    }
+
+    @Test
+    public void test_parse_fromField_SecondOfMinute_NanoOfSecond() {
+        DateTimeFormatter fmt = new DateTimeFormatterBuilder()
+            .appendValue(SECOND_OF_MINUTE).appendLiteral('.').appendValue(NANO_OF_SECOND).toFormatter();
+        TemporalAccessor acc = fmt.parse("32.123456789");
+        assertEquals(acc.isSupported(SECOND_OF_MINUTE), true);
+        assertEquals(acc.isSupported(NANO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MICRO_OF_SECOND), true);
+        assertEquals(acc.isSupported(MILLI_OF_SECOND), true);
+        assertEquals(acc.getLong(SECOND_OF_MINUTE), 32L);
+        assertEquals(acc.getLong(NANO_OF_SECOND), 123456789L);
+        assertEquals(acc.getLong(MICRO_OF_SECOND), 123456L);
+        assertEquals(acc.getLong(MILLI_OF_SECOND), 123L);
+    }
+
 }

test/java/time/test/java/time/format/TestDateTimeParsing.java

+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file:
+ *
+ * Copyright (c) 2014, Stephen Colebourne & Michael Nascimento Santos
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ *  * Neither the name of JSR-310 nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package test.java.time.format;
+
+import static java.time.temporal.ChronoField.EPOCH_DAY;
+import static java.time.temporal.ChronoField.INSTANT_SECONDS;
+import static java.time.temporal.ChronoField.MICRO_OF_SECOND;
+import static java.time.temporal.ChronoField.MILLI_OF_SECOND;
+import static java.time.temporal.ChronoField.NANO_OF_SECOND;
+import static java.time.temporal.ChronoField.OFFSET_SECONDS;
+import static java.time.temporal.ChronoField.SECOND_OF_DAY;
+import static org.testng.Assert.assertEquals;
+
+import java.time.DateTimeException;
+import java.time.Instant;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.time.ZoneOffset;
+import java.time.ZonedDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeFormatterBuilder;
+import java.time.temporal.TemporalAccessor;
+
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+/**
+ * Test parsing of edge cases.
+ */
+@Test
+public class TestDateTimeParsing {
+
+    private static final ZoneId PARIS = ZoneId.of("Europe/Paris");
+    private static final ZoneOffset OFFSET_0230 = ZoneOffset.ofHoursMinutes(2, 30);
+
+    private static final DateTimeFormatter LOCALFIELDS = new DateTimeFormatterBuilder()
+        .appendPattern("yyyy-MM-dd HH:mm:ss").toFormatter();
+    private static final DateTimeFormatter LOCALFIELDS_ZONEID = new DateTimeFormatterBuilder()
+        .appendPattern("yyyy-MM-dd HH:mm:ss ").appendZoneId().toFormatter();
+    private static final DateTimeFormatter LOCALFIELDS_OFFSETID = new DateTimeFormatterBuilder()
+        .appendPattern("yyyy-MM-dd HH:mm:ss ").appendOffsetId().toFormatter();
+    private static final DateTimeFormatter LOCALFIELDS_WITH_PARIS = LOCALFIELDS.withZone(PARIS);
+    private static final DateTimeFormatter LOCALFIELDS_WITH_0230 = LOCALFIELDS.withZone(OFFSET_0230);
+    private static final DateTimeFormatter INSTANT = new DateTimeFormatterBuilder()
+        .appendInstant().toFormatter();
+    private static final DateTimeFormatter INSTANT_WITH_PARIS = INSTANT.withZone(PARIS);
+    private static final DateTimeFormatter INSTANT_WITH_0230 = INSTANT.withZone(OFFSET_0230);
+    private static final DateTimeFormatter INSTANT_OFFSETID = new DateTimeFormatterBuilder()
+        .appendInstant().appendLiteral(' ').appendOffsetId().toFormatter();
+    private static final DateTimeFormatter INSTANT_OFFSETSECONDS = new DateTimeFormatterBuilder()
+        .appendInstant().appendLiteral(' ').appendValue(OFFSET_SECONDS).toFormatter();
+    private static final DateTimeFormatter INSTANTSECONDS = new DateTimeFormatterBuilder()
+        .appendValue(INSTANT_SECONDS).toFormatter();
+    private static final DateTimeFormatter INSTANTSECONDS_WITH_PARIS = INSTANTSECONDS.withZone(PARIS);
+    private static final DateTimeFormatter INSTANTSECONDS_NOS = new DateTimeFormatterBuilder()
+        .appendValue(INSTANT_SECONDS).appendLiteral('.').appendValue(NANO_OF_SECOND).toFormatter();
+    private static final DateTimeFormatter INSTANTSECONDS_NOS_WITH_PARIS = INSTANTSECONDS_NOS.withZone(PARIS);
+    private static final DateTimeFormatter INSTANTSECONDS_OFFSETSECONDS = new DateTimeFormatterBuilder()
+        .appendValue(INSTANT_SECONDS).appendLiteral(' ').appendValue(OFFSET_SECONDS).toFormatter();
+
+    @DataProvider(name = "instantZones")
+    Object[][] data_instantZones() {
+        return new Object[][] {
+            {LOCALFIELDS_ZONEID, "2014-06-30 01:02:03 Europe/Paris", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, PARIS)},
+            {LOCALFIELDS_ZONEID, "2014-06-30 01:02:03 +02:30", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, OFFSET_0230)},
+            {LOCALFIELDS_OFFSETID, "2014-06-30 01:02:03 +02:30", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, OFFSET_0230)},
+            {LOCALFIELDS_WITH_PARIS, "2014-06-30 01:02:03", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, PARIS)},
+            {LOCALFIELDS_WITH_0230, "2014-06-30 01:02:03", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, OFFSET_0230)},
+            {INSTANT_WITH_PARIS, "2014-06-30T01:02:03Z", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).withZoneSameInstant(PARIS)},
+            {INSTANT_WITH_0230, "2014-06-30T01:02:03Z", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).withZoneSameInstant(OFFSET_0230)},
+            {INSTANT_OFFSETID, "2014-06-30T01:02:03Z +02:30", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).withZoneSameInstant(OFFSET_0230)},
+            {INSTANT_OFFSETSECONDS, "2014-06-30T01:02:03Z 9000", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).withZoneSameInstant(OFFSET_0230)},
+            {INSTANTSECONDS_WITH_PARIS, "86402", Instant.ofEpochSecond(86402).atZone(PARIS)},
+            {INSTANTSECONDS_NOS_WITH_PARIS, "86402.123456789", Instant.ofEpochSecond(86402, 123456789).atZone(PARIS)},
+            {INSTANTSECONDS_OFFSETSECONDS, "86402 9000", Instant.ofEpochSecond(86402).atZone(OFFSET_0230)},
+        };
+    }
+
+    @Test(dataProvider = "instantZones")
+    public void test_parse_instantZones_ZDT(DateTimeFormatter formatter, String text, ZonedDateTime expected) {
+        TemporalAccessor actual = formatter.parse(text);
+        assertEquals(ZonedDateTime.from(actual), expected);
+    }
+
+    @Test(dataProvider = "instantZones")
+    public void test_parse_instantZones_LDT(DateTimeFormatter formatter, String text, ZonedDateTime expected) {
+        TemporalAccessor actual = formatter.parse(text);
+        assertEquals(LocalDateTime.from(actual), expected.toLocalDateTime());
+    }
+
+    @Test(dataProvider = "instantZones")
+    public void test_parse_instantZones_Instant(DateTimeFormatter formatter, String text, ZonedDateTime expected) {
+        TemporalAccessor actual = formatter.parse(text);
+        assertEquals(Instant.from(actual), expected.toInstant());
+    }
+
+    @Test(dataProvider = "instantZones")
+    public void test_parse_instantZones_supported(DateTimeFormatter formatter, String text, ZonedDateTime expected) {
+        TemporalAccessor actual = formatter.parse(text);
+        assertEquals(actual.isSupported(INSTANT_SECONDS), true);
+        assertEquals(actual.isSupported(EPOCH_DAY), true);
+        assertEquals(actual.isSupported(SECOND_OF_DAY), true);
+        assertEquals(actual.isSupported(NANO_OF_SECOND), true);
+        assertEquals(actual.isSupported(MICRO_OF_SECOND), true);
+        assertEquals(actual.isSupported(MILLI_OF_SECOND), true);
+    }
+
+    //-----------------------------------------------------------------------
+    @DataProvider(name = "instantNoZone")
+    Object[][] data_instantNoZone() {
+        return new Object[][] {
+            {INSTANT, "2014-06-30T01:02:03Z", ZonedDateTime.of(2014, 6, 30, 1, 2, 3, 0, ZoneOffset.UTC).toInstant()},
+            {INSTANTSECONDS, "86402", Instant.ofEpochSecond(86402)},
+            {INSTANTSECONDS_NOS, "86402.123456789", Instant.ofEpochSecond(86402, 123456789)},
+        };
+    }
+
+    @Test(dataProvider = "instantNoZone", expectedExceptions = DateTimeException.class)
+    public void test_parse_instantNoZone_ZDT(DateTimeFormatter formatter, String text, Instant expected) {
+        TemporalAccessor actual = formatter.parse(text);
+        ZonedDateTime.from(actual);
+    }
+
+    @Test(dataProvider = "instantNoZone", expectedExceptions = DateTimeException.class)
+    public void test_parse_instantNoZone_LDT(DateTimeFormatter formatter, String text, Instant expected) {
+        TemporalAccessor actual = formatter.parse(text);
+        LocalDateTime.from(actual);
+    }
+
+    @Test(dataProvider = "instantNoZone")
+    public void test_parse_instantNoZone_Instant(DateTimeFormatter formatter, String text, Instant expected) {
+        TemporalAccessor actual = formatter.parse(text);
+        assertEquals(Instant.from(actual), expected);
+    }
+
+    @Test(dataProvider = "instantNoZone")
+    public void test_parse_instantNoZone_supported(DateTimeFormatter formatter, String text, Instant expected) {
+        TemporalAccessor actual = formatter.parse(text);
+        assertEquals(actual.isSupported(INSTANT_SECONDS), true);
+        assertEquals(actual.isSupported(EPOCH_DAY), false);
+        assertEquals(actual.isSupported(SECOND_OF_DAY), false);
+        assertEquals(actual.isSupported(NANO_OF_SECOND), true);
+        assertEquals(actual.isSupported(MICRO_OF_SECOND), true);
+        assertEquals(actual.isSupported(MILLI_OF_SECOND), true);
+    }
+
+}