Update opentelementry-proto to 1.4

buildSrc/src/main/kotlin/otel.japicmp-conventions.gradle.kts

@@ -181,7 +181,13 @@ if (!project.hasProperty("otel.release") && !project.name.startsWith("bom")) {
 
         // this is needed so that we only consider the current artifact, and not dependencies
         ignoreMissingClasses.set(true)
-        packageExcludes.addAll("*.internal", "*.internal.*", "io.opentelemetry.internal.shaded.jctools.*")
+        packageExcludes.addAll(
+          "*.internal",
+          "*.internal.*",
+          "io.opentelemetry.internal.shaded.jctools.*",
+          // Temporarily suppress warnings from public generated classes from :sdk-extensions:jaeger-remote-sampler
+          "io.opentelemetry.sdk.extension.trace.jaeger.proto.api_v2"
+        )
         val baseVersionString = if (apiBaseVersion == null) "latest" else baselineVersion
         txtOutputFile.set(
           apiNewVersion?.let { file("$rootDir/docs/apidiffs/${apiNewVersion}_vs_$baselineVersion/${base.archivesName.get()}.txt") }

dependencyManagement/build.gradle.kts

@@ -10,7 +10,7 @@ rootProject.extra["versions"] = dependencyVersions
 val DEPENDENCY_BOMS = listOf(
   "com.fasterxml.jackson:jackson-bom:2.18.1",
   "com.google.guava:guava-bom:33.3.1-jre",
-  "com.google.protobuf:protobuf-bom:3.25.5",
+  "com.google.protobuf:protobuf-bom:4.28.3",
   "com.linecorp.armeria:armeria-bom:1.31.1",
   "com.squareup.okhttp3:okhttp-bom:4.12.0",
   "com.squareup.okio:okio-bom:3.9.1", // applies to transitive dependencies of okhttp
@@ -69,7 +69,7 @@ val DEPENDENCIES = listOf(
   "io.jaegertracing:jaeger-client:1.8.1",
   "io.opentelemetry.contrib:opentelemetry-aws-xray-propagator:1.39.0-alpha",
   "io.opentelemetry.semconv:opentelemetry-semconv-incubating:1.28.0-alpha",
-  "io.opentelemetry.proto:opentelemetry-proto:1.3.2-alpha",
+  "io.opentelemetry.proto:opentelemetry-proto:1.4.0-alpha",
   "io.opentracing:opentracing-api:0.33.0",
   "io.opentracing:opentracing-noop:0.33.0",
   "io.prometheus:prometheus-metrics-exporter-httpserver:1.3.3",

exporters/common/src/main/java/io/opentelemetry/exporter/internal/marshal/MarshalerUtil.java

@@ -225,6 +225,26 @@
     return field.getTagSize() + CodedOutputStream.computeUInt32SizeNoTag(payloadSize) + payloadSize;
   }
 
+  /**
+   * Returns the size of a repeated int32 field.
+   *
+   * <p>Packed repeated fields contain the tag, an integer representing the incoming payload size,
+   * and an actual payload of repeated varints.
+   */
+  public static int sizeRepeatedInt32(ProtoFieldInfo field, List<Integer> values) {
+    if (values.isEmpty()) {
+      return 0;
+    }
+
+    int payloadSize = 0;
+    for (int v : values) {
+      payloadSize += CodedOutputStream.computeInt32SizeNoTag(v);
+    }
+
+    // tag size + payload indicator size + actual payload size
+    return field.getTagSize() + CodedOutputStream.computeUInt32SizeNoTag(payloadSize) + payloadSize;
+  }
+
   /** Returns the size of a repeated double field. */
   public static int sizeRepeatedDouble(ProtoFieldInfo field, List<Double> values) {
     // Same as fixed64.
@@ -310,6 +330,19 @@
     return field.getTagSize() + CodedOutputStream.computeInt32SizeNoTag(message);
   }
 
+  /** Returns the size of an optional int32 field. */
+  public static int sizeInt32Optional(ProtoFieldInfo field, int message) {
+    return field.getTagSize() + CodedOutputStream.computeInt32SizeNoTag(message);
+  }
+
+  /** Returns the size of an optional int32 field. */
+  public static int sizeInt32Optional(ProtoFieldInfo field, @Nullable Integer message) {
+    if (message == null) {
+      return 0;
+    }
+    return sizeInt32Optional(field, (int) message);
+  }
+
   /** Returns the size of a double field. */
   public static int sizeDouble(ProtoFieldInfo field, double value) {
     if (value == 0D) {

exporters/common/src/main/java/io/opentelemetry/exporter/internal/marshal/Serializer.java

@@ -122,14 +122,27 @@
 
   protected abstract void writeSInt32(ProtoFieldInfo info, int value) throws IOException;
 
-  /** Serializes a protobuf {@code uint32} field. */
+  /** Serializes a protobuf {@code int32} field. */
   public void serializeInt32(ProtoFieldInfo field, int value) throws IOException {
     if (value == 0) {
       return;
     }
     writeint32(field, value);
   }
 
+  /** Serializes a protobuf {@code int32} field. */
+  public void serializeInt32Optional(ProtoFieldInfo field, int value) throws IOException {
+    writeint32(field, value);
+  }
+
+  /** Serializes a protobuf {@code int32} field. */
+  public void serializeInt32Optional(ProtoFieldInfo field, @Nullable Integer value)
+      throws IOException {
+    if (value != null) {
+      serializeInt32Optional(field, (int) value);
+    }
+  }
+
   protected abstract void writeint32(ProtoFieldInfo field, int value) throws IOException;
 
   /** Serializes a protobuf {@code int64} field. */
@@ -340,6 +353,25 @@
 
   protected abstract void writeEndRepeatedVarint() throws IOException;
 
+  /** Serializes a {@code repeated int32} field. */
+  public void serializeRepeatedInt32(ProtoFieldInfo field, List<Integer> values)
+      throws IOException {
+    if (values.isEmpty()) {
+      return;
+    }
+
+    int payloadSize = 0;
+    for (int v : values) {
+      payloadSize += CodedOutputStream.computeInt32SizeNoTag(v);
+    }
+
+    writeStartRepeatedVarint(field, payloadSize);
+    for (int value : values) {
+      writeUInt64Value(value);
+    }
+    writeEndRepeatedVarint();
+  }
+
   /** Serializes a {@code repeated fixed64} field. */
   public void serializeRepeatedFixed64(ProtoFieldInfo field, List<Long> values) throws IOException {
     if (values.isEmpty()) {

exporters/otlp/common/build.gradle.kts

@@ -42,7 +42,7 @@ wire {
     "opentelemetry.proto.collector.trace.v1.ExportTraceServiceRequest",
     "opentelemetry.proto.collector.metrics.v1.ExportMetricsServiceRequest",
     "opentelemetry.proto.collector.logs.v1.ExportLogsServiceRequest",
-    "opentelemetry.proto.collector.profiles.v1experimental.ExportProfilesServiceRequest"
+    "opentelemetry.proto.collector.profiles.v1development.ExportProfilesServiceRequest"
   )
 
   custom {

exporters/otlp/profiles/src/main/java/io/opentelemetry/exporter/otlp/internal/data/ImmutableAttributeUnitData.java

@@ -25,8 +25,8 @@ public abstract class ImmutableAttributeUnitData implements AttributeUnitData {
    *
    * @return a new AttributeUnitData mapping the given key to the given unit.
    */
-  public static AttributeUnitData create(long attributeKey, long unitIndex) {
-    return new AutoValue_ImmutableAttributeUnitData(attributeKey, unitIndex);
+  public static AttributeUnitData create(int attributeKeyStringIndex, int unitStringIndex) {
+    return new AutoValue_ImmutableAttributeUnitData(attributeKeyStringIndex, unitStringIndex);
   }
 
   ImmutableAttributeUnitData() {}

exporters/otlp/profiles/src/main/java/io/opentelemetry/exporter/otlp/internal/data/ImmutableFunctionData.java

@@ -25,9 +25,9 @@ public abstract class ImmutableFunctionData implements FunctionData {
    * @return a new FunctionData describing the given function characteristics.
    */
   public static FunctionData create(
-      long nameIndex, long systemNameIndex, long filenameIndex, long startLine) {
+      int nameStringIndex, int systemNameStringIndex, int filenameStringIndex, long startLine) {
     return new AutoValue_ImmutableFunctionData(
-        nameIndex, systemNameIndex, filenameIndex, startLine);
+        nameStringIndex, systemNameStringIndex, filenameStringIndex, startLine);
   }
 
   ImmutableFunctionData() {}

exporters/otlp/profiles/src/main/java/io/opentelemetry/exporter/otlp/internal/data/ImmutableLineData.java

@@ -25,7 +25,7 @@ public abstract class ImmutableLineData implements LineData {
    *
    * @return a new LineData describing the given details a specific line in a source code.
    */
-  public static LineData create(long functionIndex, long line, long column) {
+  public static LineData create(int functionIndex, long line, long column) {
     return new AutoValue_ImmutableLineData(functionIndex, line, column);
   }
 

exporters/otlp/profiles/src/main/java/io/opentelemetry/exporter/otlp/internal/data/ImmutableLocationData.java

@@ -28,14 +28,13 @@ public abstract class ImmutableLocationData implements LocationData {
    * @return a new LocationData describing the given function and line table information.
    */
   public static LocationData create(
-      long mappingIndex,
+      Integer mappingIndex,
       long address,
       List<LineData> lines,
       boolean folded,
-      int typeIndex,
-      List<Long> attributes) {
+      List<Integer> attributeIndices) {
     return new AutoValue_ImmutableLocationData(
-        mappingIndex, address, lines, folded, typeIndex, attributes);
+        mappingIndex, address, lines, folded, attributeIndices);
   }
 
   ImmutableLocationData() {}

exporters/otlp/profiles/src/main/java/io/opentelemetry/exporter/otlp/internal/data/ImmutableMappingData.java

@@ -6,7 +6,6 @@
 package io.opentelemetry.exporter.otlp.internal.data;
 
 import com.google.auto.value.AutoValue;
-import io.opentelemetry.exporter.otlp.profiles.BuildIdKind;
 import io.opentelemetry.exporter.otlp.profiles.MappingData;
 import java.util.List;
 import javax.annotation.concurrent.Immutable;
@@ -32,10 +31,8 @@ public static MappingData create(
       long memoryStart,
       long memoryLimit,
       long fileOffset,
-      long filenameIndex,
-      long buildIdIndex,
-      BuildIdKind buildIdKind,
-      List<Long> attributeIndices,
+      int filenameStringIndex,
+      List<Integer> attributeIndices,
       boolean hasFunctions,
       boolean hasFilenames,
       boolean hasLineNumbers,
@@ -44,9 +41,7 @@ public static MappingData create(
         memoryStart,
         memoryLimit,
         fileOffset,
-        filenameIndex,
-        buildIdIndex,
-        buildIdKind,
+        filenameStringIndex,
         attributeIndices,
         hasFunctions,
         hasFilenames,