diff --git a/api/all/src/main/java/io/opentelemetry/api/metrics/DoubleHistogramBuilder.java b/api/all/src/main/java/io/opentelemetry/api/metrics/DoubleHistogramBuilder.java
index bc93b3c9e3f..67f6ae050fa 100644
--- a/api/all/src/main/java/io/opentelemetry/api/metrics/DoubleHistogramBuilder.java
+++ b/api/all/src/main/java/io/opentelemetry/api/metrics/DoubleHistogramBuilder.java
@@ -48,7 +48,7 @@ default DoubleHistogramBuilder setExplicitBucketBoundariesAdvice(List<Double> bu
     return this;
   }
 
-  /** Sets the Counter for recording {@code long} values. */
+  /** Sets the Histogram for recording {@code long} values. */
   LongHistogramBuilder ofLongs();
 
   /**
diff --git a/api/all/src/main/java/io/opentelemetry/api/metrics/LongUpDownCounterBuilder.java b/api/all/src/main/java/io/opentelemetry/api/metrics/LongUpDownCounterBuilder.java
index d59ff9789ac..33d514422bc 100644
--- a/api/all/src/main/java/io/opentelemetry/api/metrics/LongUpDownCounterBuilder.java
+++ b/api/all/src/main/java/io/opentelemetry/api/metrics/LongUpDownCounterBuilder.java
@@ -33,7 +33,7 @@ public interface LongUpDownCounterBuilder {
    */
   LongUpDownCounterBuilder setUnit(String unit);
 
-  /** Sets the Counter for recording {@code double} values. */
+  /** Sets the UpDownCounter for recording {@code double} values. */
   DoubleUpDownCounterBuilder ofDoubles();
 
   /**
diff --git a/api/all/src/main/java/io/opentelemetry/api/trace/TraceFlags.java b/api/all/src/main/java/io/opentelemetry/api/trace/TraceFlags.java
index 3b9d0337557..85074130b6a 100644
--- a/api/all/src/main/java/io/opentelemetry/api/trace/TraceFlags.java
+++ b/api/all/src/main/java/io/opentelemetry/api/trace/TraceFlags.java
@@ -71,7 +71,7 @@ static TraceFlags fromByte(byte traceFlagsByte) {
    * Returns {@code true} if the sampling bit is on for this {@link TraceFlags}, otherwise {@code
    * false}.
    *
-   * @return {@code true} if the sampling bit is on for this {@link TraceFlags}, otherwise {@code *
+   * @return {@code true} if the sampling bit is on for this {@link TraceFlags}, otherwise {@code
    *     false}.
    */
   boolean isSampled();
@@ -92,7 +92,7 @@ default boolean isTraceIdRandom() {
   /**
    * Returns the lowercase hex (base16) representation of this {@link TraceFlags}.
    *
-   * @return the byte representation of the {@link TraceFlags}.
+   * @return the lowercase hex (base16) representation of the {@link TraceFlags}.
    */
   String asHex();
 
diff --git a/api/all/src/main/java/io/opentelemetry/api/trace/TraceId.java b/api/all/src/main/java/io/opentelemetry/api/trace/TraceId.java
index 3ee77848d75..a14f0636a39 100644
--- a/api/all/src/main/java/io/opentelemetry/api/trace/TraceId.java
+++ b/api/all/src/main/java/io/opentelemetry/api/trace/TraceId.java
@@ -70,7 +70,7 @@ public static boolean isValid(CharSequence traceId) {
    * given bytes representation, or {@link #getInvalid()} if input is {@code null} or the given byte
    * array is too short.
    *
-   * <p>It converts the first 26 bytes of the given byte array.
+   * <p>It converts the first 16 bytes of the given byte array.
    *
    * @param traceIdBytes the bytes (16-byte array) representation of the {@code TraceId}.
    * @return the lowercase hex (base16) representation of the {@code TraceId}.
@@ -86,7 +86,7 @@ public static String fromBytes(byte[] traceIdBytes) {
   }
 
   /**
-   * Returns the bytes (16-byte array) representation of the {@code TraceId} converted from the
+   * Returns the lowercase hex (base16) representation of the {@code TraceId} converted from the
    * given two {@code long} values representing the lower and higher parts.
    *
    * <p>There is no restriction on the specified values, other than the already established validity