diff --git a/icu4j/main/classes/core/src/com/ibm/icu/number/Precision.java b/icu4j/main/classes/core/src/com/ibm/icu/number/Precision.java
index a984ae06502..0b46cf6e832 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/number/Precision.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/number/Precision.java
@@ -559,7 +559,22 @@ public abstract class Precision {
      */
     @Deprecated
     public static class BogusRounder extends Precision {
+        /**
+         * Default constructor.
+         * @internal
+         * @deprecated This API is ICU internal only.
+         */
+        @Deprecated
+        public BogusRounder() {
+        }
+
+        /**
+         * {@inheritDoc}
+         * @internal
+         * @deprecated This API is ICU internal only.
+         */
         @Override
+        @Deprecated
         public void apply(DecimalQuantity value) {
             throw new AssertionError("BogusRounder must not be applied");
         }
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/text/RelativeDateTimeFormatter.java b/icu4j/main/classes/core/src/com/ibm/icu/text/RelativeDateTimeFormatter.java
index dce26bce9e9..14b2fbd2149 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/text/RelativeDateTimeFormatter.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/text/RelativeDateTimeFormatter.java
@@ -252,15 +252,13 @@ public final class RelativeDateTimeFormatter {
 
         /**
          * Hour
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         HOUR,
 
         /**
          * Minute
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         MINUTE,
     }
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/LocaleMatcher.java b/icu4j/main/classes/core/src/com/ibm/icu/util/LocaleMatcher.java
index dca49effd9a..114e9ad6552 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/LocaleMatcher.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/LocaleMatcher.java
@@ -88,23 +88,20 @@ public final class LocaleMatcher {
      * Builder option for whether the language subtag or the script subtag is most important.
      *
      * @see LocaleMatcher.Builder#setFavorSubtag(LocaleMatcher.FavorSubtag)
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public enum FavorSubtag {
         /**
          * Language differences are most important, then script differences, then region differences.
          * (This is the default behavior.)
          *
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         LANGUAGE,
         /**
          * Makes script differences matter relatively more than language differences.
          *
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         SCRIPT
     }
@@ -114,15 +111,13 @@ public final class LocaleMatcher {
      * earlier ones are preferred.
      *
      * @see LocaleMatcher.Builder#setDemotionPerDesiredLocale(LocaleMatcher.Demotion)
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public enum Demotion {
         /**
          * All desired locales are treated equally.
          *
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         NONE,
         /**
@@ -149,8 +144,7 @@ public final class LocaleMatcher {
          *        this is possible in future versions of the data.)
          * </ul>
          *
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         REGION
     }
@@ -194,8 +188,7 @@ public final class LocaleMatcher {
     /**
      * Data for the best-matching pair of a desired and a supported locale.
      *
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public static final class Result {
         private final ULocale desiredULocale;
@@ -221,8 +214,7 @@ public final class LocaleMatcher {
          * null if the list of desired locales is empty or if none matched well enough.
          *
          * @return the best-matching desired locale, or null.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public ULocale getDesiredULocale() {
             return desiredULocale == null && desiredLocale != null ?
@@ -233,8 +225,7 @@ public final class LocaleMatcher {
          * null if the list of desired locales is empty or if none matched well enough.
          *
          * @return the best-matching desired locale, or null.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Locale getDesiredLocale() {
             return desiredLocale == null && desiredULocale != null ?
@@ -248,8 +239,7 @@ public final class LocaleMatcher {
          * or if the list of supported locales is empty and no explicit default locale is set.
          *
          * @return the best-matching supported locale, or null.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public ULocale getSupportedULocale() { return supportedULocale; }
         /**
@@ -259,8 +249,7 @@ public final class LocaleMatcher {
          * or if the list of supported locales is empty and no explicit default locale is set.
          *
          * @return the best-matching supported locale, or null.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Locale getSupportedLocale() { return supportedLocale; }
 
@@ -269,8 +258,7 @@ public final class LocaleMatcher {
          * -1 if the list of desired locales is empty or if none matched well enough.
          *
          * @return the index of the best-matching desired locale, or -1.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public int getDesiredIndex() { return desiredIndex; }
 
@@ -282,8 +270,7 @@ public final class LocaleMatcher {
          * -1 if the list of supported locales is empty or if none matched well enough.
          *
          * @return the index of the best-matching supported locale, or -1.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public int getSupportedIndex() { return supportedIndex; }
 
@@ -297,8 +284,7 @@ public final class LocaleMatcher {
          * <p>Example: desired=ar-SA-u-nu-latn, supported=ar-EG, resolved locale=ar-SA-u-nu-latn
          *
          * @return a locale combining the best-matching desired and supported locales.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public ULocale makeResolvedULocale() {
             ULocale bestDesired = getDesiredULocale();
@@ -343,8 +329,7 @@ public final class LocaleMatcher {
          * <p>Example: desired=ar-SA-u-nu-latn, supported=ar-EG, resolved locale=ar-SA-u-nu-latn
          *
          * @return a locale combining the best-matching desired and supported locales.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Locale makeResolvedLocale() {
             ULocale resolved = makeResolvedULocale();
@@ -374,8 +359,7 @@ public final class LocaleMatcher {
      * LocaleMatcher Builder.
      *
      * @see LocaleMatcher#builder()
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public static final class Builder {
         private List<ULocale> supportedLocales;
@@ -397,8 +381,7 @@ public final class LocaleMatcher {
          *
          * @param locales the string of locales to set, to be parsed like LocalePriorityList does
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder setSupportedLocales(String locales) {
             return setSupportedULocales(LocalePriorityList.add(locales).build().getULocales());
@@ -411,8 +394,7 @@ public final class LocaleMatcher {
          *
          * @param locales the list of locales
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder setSupportedULocales(Collection<ULocale> locales) {
             supportedLocales = new ArrayList<>(locales);
@@ -426,8 +408,7 @@ public final class LocaleMatcher {
          *
          * @param locales the list of locale
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder setSupportedLocales(Collection<Locale> locales) {
             supportedLocales = new ArrayList<>(locales.size());
@@ -443,8 +424,7 @@ public final class LocaleMatcher {
          *
          * @param locale another locale
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder addSupportedULocale(ULocale locale) {
             if (supportedLocales == null) {
@@ -460,8 +440,7 @@ public final class LocaleMatcher {
          *
          * @param locale another locale
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder addSupportedLocale(Locale locale) {
             return addSupportedULocale(ULocale.forLocale(locale));
@@ -490,8 +469,7 @@ public final class LocaleMatcher {
          *
          * @param defaultLocale the default locale
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder setDefaultULocale(ULocale defaultLocale) {
             this.defaultLocale = defaultLocale;
@@ -507,8 +485,7 @@ public final class LocaleMatcher {
          *
          * @param defaultLocale the default locale
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder setDefaultLocale(Locale defaultLocale) {
             this.defaultLocale = ULocale.forLocale(defaultLocale);
@@ -523,8 +500,7 @@ public final class LocaleMatcher {
          *
          * @param subtag the subtag to favor
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder setFavorSubtag(FavorSubtag subtag) {
             this.favor = subtag;
@@ -537,8 +513,7 @@ public final class LocaleMatcher {
          *
          * @param demotion the demotion per desired locale to set.
          * @return this Builder object
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public Builder setDemotionPerDesiredLocale(Demotion demotion) {
             this.demotion = demotion;
@@ -641,8 +616,7 @@ public final class LocaleMatcher {
          * This builder can continue to be used.
          *
          * @return new LocaleMatcher.
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         public LocaleMatcher build() {
             return new LocaleMatcher(this);
@@ -650,8 +624,7 @@ public final class LocaleMatcher {
 
         /**
          * {@inheritDoc}
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         @Override
         public String toString() {
@@ -679,8 +652,7 @@ public final class LocaleMatcher {
      * Returns a builder used in chaining parameters for building a LocaleMatcher.
      *
      * @return a new Builder object
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public static Builder builder() {
         return new Builder();
@@ -945,8 +917,7 @@ public final class LocaleMatcher {
      *
      * @param desiredLocale Typically a user's language.
      * @return the best-matching supported locale.
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public Locale getBestLocale(Locale desiredLocale) {
         LSR desiredLSR = getMaximalLsrOrUnd(desiredLocale);
@@ -959,8 +930,7 @@ public final class LocaleMatcher {
      *
      * @param desiredLocales Typically a user's languages, in order of preference (descending).
      * @return the best-matching supported locale.
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public Locale getBestLocale(Iterable<Locale> desiredLocales) {
         Iterator<Locale> desiredIter = desiredLocales.iterator();
@@ -1007,8 +977,7 @@ public final class LocaleMatcher {
      *
      * @param desiredLocale Typically a user's language.
      * @return the best-matching pair of the desired and a supported locale.
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public Result getBestMatchResult(ULocale desiredLocale) {
         LSR desiredLSR = getMaximalLsrOrUnd(desiredLocale);
@@ -1021,8 +990,7 @@ public final class LocaleMatcher {
      *
      * @param desiredLocales Typically a user's languages, in order of preference (descending).
      * @return the best-matching pair of a desired and a supported locale.
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public Result getBestMatchResult(Iterable<ULocale> desiredLocales) {
         Iterator<ULocale> desiredIter = desiredLocales.iterator();
@@ -1040,8 +1008,7 @@ public final class LocaleMatcher {
      *
      * @param desiredLocale Typically a user's language.
      * @return the best-matching pair of the desired and a supported locale.
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public Result getBestLocaleResult(Locale desiredLocale) {
         LSR desiredLSR = getMaximalLsrOrUnd(desiredLocale);
@@ -1054,8 +1021,7 @@ public final class LocaleMatcher {
      *
      * @param desiredLocales Typically a user's languages, in order of preference (descending).
      * @return the best-matching pair of a desired and a supported locale.
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public Result getBestLocaleResult(Iterable<Locale> desiredLocales) {
         Iterator<Locale> desiredIter = desiredLocales.iterator();
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/LocalePriorityList.java b/icu4j/main/classes/core/src/com/ibm/icu/util/LocalePriorityList.java
index ae1f5e8f196..555f709015e 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/LocalePriorityList.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/LocalePriorityList.java
@@ -142,8 +142,7 @@ public class LocalePriorityList implements Iterable<ULocale> {
      * The set has the same iteration order as this object itself.
      *
      * @return the locales
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public Set<ULocale> getULocales() {
         return languagesAndWeights.keySet();
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/TimeZone.java b/icu4j/main/classes/core/src/com/ibm/icu/util/TimeZone.java
index 9a275e55686..5300aabe6b4 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/TimeZone.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/TimeZone.java
@@ -28,7 +28,6 @@ import com.ibm.icu.text.TimeZoneFormat.Style;
 import com.ibm.icu.text.TimeZoneFormat.TimeType;
 import com.ibm.icu.text.TimeZoneNames;
 import com.ibm.icu.text.TimeZoneNames.NameType;
-import com.ibm.icu.util.ULocale;
 import com.ibm.icu.util.ULocale.Category;
 
 /**
@@ -924,7 +923,9 @@ abstract public class TimeZone implements Serializable, Cloneable, Freezable<Tim
      * @return A <code>TimeZone</code>. Clients are responsible for deleting the
      *   <code>TimeZone</code> object returned.
      * @internal
+     * @deprecated This API is ICU internal only.
      */
+    @Deprecated
     public static TimeZone forULocaleOrDefault(ULocale locale) {
         String tz = locale.getKeywordValue("timezone");
         return (tz == null) ? getDefault() : getTimeZone(tz);
@@ -938,7 +939,9 @@ abstract public class TimeZone implements Serializable, Cloneable, Freezable<Tim
      * @return A <code>TimeZone</code>. Clients are responsible for deleting the
      *   <code>TimeZone</code> object returned.
      * @internal
+     * @deprecated This API is ICU internal only.
      */
+    @Deprecated
     public static TimeZone forLocaleOrDefault(Locale locale) {
         return forULocaleOrDefault(ULocale.forLocale(locale));
     }
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/ULocale.java b/icu4j/main/classes/core/src/com/ibm/icu/util/ULocale.java
index 2a3fce3ff20..7c4353e99d6 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/ULocale.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/ULocale.java
@@ -130,16 +130,14 @@ public final class ULocale implements Serializable, Comparable<ULocale> {
     /**
      * Types for {@link ULocale#getAvailableLocalesByType}
      *
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public static enum AvailableType {
         /**
          * Locales that return data when passed to ICU APIs,
          * but not including legacy or alias locales.
          *
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         DEFAULT,
 
@@ -159,16 +157,14 @@ public final class ULocale implements Serializable, Comparable<ULocale> {
          * DEFAULT. To get both sets at the same time, use
          * WITH_LEGACY_ALIASES.
          *
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         ONLY_LEGACY_ALIASES,
 
         /**
          * The union of the locales in DEFAULT and ONLY_LEGACY_ALIASES.
          *
-         * @draft ICU 65
-         * @provisional This API might change or be removed in a future release.
+         * @stable ICU 65
          */
         WITH_LEGACY_ALIASES,
     }
@@ -854,8 +850,7 @@ public final class ULocale implements Serializable, Comparable<ULocale> {
     /**
      * Returns a list of all installed locales according to the specified type.
      *
-     * @draft ICU 65
-     * @provisional This API might change or be removed in a future release.
+     * @stable ICU 65
      */
     public static Collection<ULocale> getAvailableLocalesByType(AvailableType type) {
         if (type == null) {
@@ -1227,7 +1222,7 @@ public final class ULocale implements Serializable, Comparable<ULocale> {
             this.region = region;
             if (!variants.isEmpty()) {
                 this.variants =
-                    new ArrayList<String>(Arrays.asList(variants.split("_")));
+                    new ArrayList<>(Arrays.asList(variants.split("_")));
             }
             this.extensions = extensions;
         }
@@ -1301,10 +1296,10 @@ public final class ULocale implements Serializable, Comparable<ULocale> {
             if (aliasDataIsLoaded) {
                 return;
             }
-            languageAliasMap = new HashMap<String, String>();
-            scriptAliasMap = new HashMap<String, String>();
-            territoryAliasMap = new HashMap<String, List<String>>();
-            variantAliasMap = new HashMap<String, String>();
+            languageAliasMap = new HashMap<>();
+            scriptAliasMap = new HashMap<>();
+            territoryAliasMap = new HashMap<>();
+            variantAliasMap = new HashMap<>();
 
             UResourceBundle metadata = UResourceBundle.getBundleInstance(
                 ICUData.ICU_BASE_NAME, "metadata",
@@ -1349,7 +1344,7 @@ public final class ULocale implements Serializable, Comparable<ULocale> {
                         "Incorrect key [" + aliasFrom + "] in alias:territory.");
                 }
                 territoryAliasMap.put(aliasFrom,
-                    new ArrayList<String>(Arrays.asList(aliasTo.split(" "))));
+                    new ArrayList<>(Arrays.asList(aliasTo.split(" "))));
             }
             for (int i = 0 ; i < variantAlias.getSize(); i++) {
                 UResourceBundle res = variantAlias.get(i);
@@ -1673,7 +1668,7 @@ public final class ULocale implements Serializable, Comparable<ULocale> {
                 "uk_UA", "ur", "ur_PK", "uz", "uz_UZ", "vi", "vi_VN", "yue", "yue_Hant",
                 "yue_Hant_HK", "yue_HK", "zh", "zh_CN", "zh_Hans", "zh_Hans_CN", "zh_Hant",
                 "zh_Hant_TW", "zh_TW", "zu", "zu_ZA");
-            gKnownCanonicalizedCases = new HashSet<String>(items);
+            gKnownCanonicalizedCases = new HashSet<>(items);
 
         }
         return gKnownCanonicalizedCases.contains(name);