8032749: Typo in java.time.Clock

8032888: Error message typo in TemporalAccessor
8032558: Instant spec includes incorrect assertion wrt valid range
8032494: DateTimeFormatter spec includes irrelevent detail on parsing pattern
Summary: Update to fix typos, remove extraneous text
Reviewed-by: darcy, lancea, sherman, scolebourne

src/share/classes/java/time/Clock.java

@@ -104,7 +104,7 @@ import java.util.TimeZone;
  * resolution clock if one is available.
  *
  * @implSpec
- * This abstract class must be implemented with care to ensure other operate correctly.
+ * This abstract class must be implemented with care to ensure other classes operate correctly.
  * All implementations that can be instantiated must be final, immutable and thread-safe.
  * <p>
  * The principal methods are defined to allow the throwing of an exception.

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

@@ -100,11 +100,6 @@ import java.util.Objects;
  * This class models a single instantaneous point on the time-line.
  * This might be used to record event time-stamps in the application.
  * <p>
- * For practicality, the instant is stored with some constraints.
- * The measurable time-line is restricted to the number of seconds that can be held
- * in a {@code long}. This is greater than the current estimated age of the universe.
- * The instant is stored to nanosecond resolution.
- * <p>
  * The range of an instant requires the storage of a number larger than a {@code long}.
  * To achieve this, the class stores a {@code long} representing epoch-seconds and an
  * {@code int} representing nanosecond-of-second, which will always be between 0 and 999,999,999.

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

@@ -344,10 +344,7 @@ import java.util.Set;
  * <b>Fraction</b>: Outputs the nano-of-second field as a fraction-of-second.
  * The nano-of-second value has nine digits, thus the count of pattern letters
  * is from 1 to 9. If it is less than 9, then the nano-of-second value is
- * truncated, with only the most significant digits being output. When parsing
- * in strict mode, the number of parsed digits must match the count of pattern
- * letters. When parsing in lenient mode, the number of parsed digits must be at
- * least the count of pattern letters, up to 9 digits.
+ * truncated, with only the most significant digits being output.
  * <p>
  * <b>Year</b>: The count of letters determines the minimum field width below
  * which padding is used. If the count of letters is two, then a

src/share/classes/java/time/temporal/TemporalAccessor.java

@@ -217,7 +217,7 @@ public interface TemporalAccessor {
     default int get(TemporalField field) {
         ValueRange range = range(field);
         if (range.isIntValue() == false) {
-            throw new UnsupportedTemporalTypeException("Invalid field " + field + " + for get() method, use getLong() instead");
+            throw new UnsupportedTemporalTypeException("Invalid field " + field + " for get() method, use getLong() instead");
         }
         long value = getLong(field);
         if (range.isValidValue(value) == false) {