Adds Baggage.getEntry(String key)

api/all/src/main/java/io/opentelemetry/api/baggage/Baggage.java

@@ -99,4 +99,13 @@ default boolean isEmpty() {
    * be set to not use an implicit parent, so any parent assignment must be done manually.
    */
   BaggageBuilder toBuilder();
+
+  /**
+   * Returns the {@code BaggageEntry} associated with the given key.
+   *
+   * @param entryKey entry key to return the {@code BaggageEntry} for, or {@code null} if no {@code
+   *     Entry} with the given {@code entryKey} is in this {@code Baggage}.
+   */
+  @Nullable
+  BaggageEntry getEntry(String entryKey);
 }

api/all/src/main/java/io/opentelemetry/api/baggage/ImmutableBaggage.java

@@ -37,6 +37,13 @@ public String getEntryValue(String entryKey) {
     return entry != null ? entry.getValue() : null;
   }
 
+  // Overrides the
+  @Nullable
+  @Override
+  public BaggageEntry getEntry(String entryKey) {
+    return get(entryKey);
+  }
+
   @Override
   public BaggageBuilder toBuilder() {
     return new Builder(new ArrayList<>(data()));

api/all/src/main/java/io/opentelemetry/api/baggage/propagation/Parser.java

@@ -37,7 +37,7 @@ private enum State {
 
   private boolean skipToNext;
 
-  public Parser(String baggageHeader) {
+  Parser(String baggageHeader) {
     this.baggageHeader = baggageHeader;
     reset(0);
   }

api/all/src/test/java/io/opentelemetry/api/baggage/BaggageTest.java

@@ -27,4 +27,15 @@ void current() {
       assertThat(result.getEntryValue("foo")).isEqualTo("bar");
     }
   }
+
+  @Test
+  void getEntry() {
+    BaggageEntryMetadata metadata = BaggageEntryMetadata.create("flib");
+    try (Scope scope =
+        Context.root().with(Baggage.builder().put("a", "b", metadata).build()).makeCurrent()) {
+      Baggage result = Baggage.current();
+      assertThat(result.getEntry("a").getValue()).isEqualTo("b");
+      assertThat(result.getEntry("a").getMetadata().getValue()).isEqualTo("flib");
+    }
+  }
 }