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src/java.base/share/classes/java/time/ZoneId.java
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*** 160,170 ****
* However, any call to {@code getRules} will fail with {@code ZoneRulesException}.
* This approach is designed to allow a {@link ZonedDateTime} to be loaded and
* queried, but not modified, on a Java Runtime with incomplete time-zone information.
*
* <p>
! * This is a <a href="{@docRoot}/java/lang/doc-files/ValueBased.html">value-based</a>
* class; use of identity-sensitive operations (including reference equality
* ({@code ==}), identity hash code, or synchronization) on instances of
* {@code ZoneId} may have unpredictable results and should be avoided.
* The {@code equals} method should be used for comparisons.
*
--- 160,170 ----
* However, any call to {@code getRules} will fail with {@code ZoneRulesException}.
* This approach is designed to allow a {@link ZonedDateTime} to be loaded and
* queried, but not modified, on a Java Runtime with incomplete time-zone information.
*
* <p>
! * This is a <a href="{@docRoot}/java.base/java/lang/doc-files/ValueBased.html">value-based</a>
* class; use of identity-sensitive operations (including reference equality
* ({@code ==}), identity hash code, or synchronization) on instances of
* {@code ZoneId} may have unpredictable results and should be avoided.
* The {@code equals} method should be used for comparisons.
*
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