Make project names match artifact IDs.

api/all/build.gradle.kts

@@ -8,10 +8,9 @@ plugins {
 
 description = "OpenTelemetry API"
 otelJava.moduleName.set("io.opentelemetry.api")
-base.archivesBaseName = "opentelemetry-api"
 
 dependencies {
-  api(project(":context"))
+  api(project(":opentelemetry-context"))
 
   annotationProcessor("com.google.auto.value:auto-value")
 

api/metrics/build.gradle.kts

@@ -10,8 +10,8 @@ description = "OpenTelemetry API"
 otelJava.moduleName.set("io.opentelemetry.api.metrics")
 
 dependencies {
-  api(project(":api:all"))
-  api(project(":context"))
+  api(project(":api:opentelemetry-api"))
+  api(project(":opentelemetry-context"))
 
   annotationProcessor("com.google.auto.value:auto-value")
 

bom-alpha/build.gradle.kts

@@ -4,11 +4,9 @@ plugins {
 }
 
 description = "OpenTelemetry Bill of Materials (Alpha)"
-group = "io.opentelemetry"
-base.archivesBaseName = "opentelemetry-bom-alpha"
 
 rootProject.subprojects.forEach { subproject ->
-  if (!project.name.startsWith("bom")) {
+  if (!project.name.startsWith("opentelemetry-bom")) {
     evaluationDependsOn(subproject.path)
   }
 }
@@ -18,7 +16,7 @@ afterEvaluate {
     constraints {
       rootProject.subprojects
         .sortedBy { it.findProperty("archivesBaseName") as String? }
-        .filter { !it.name.startsWith("bom") }
+        .filter { !it.name.startsWith("opentelemetry-bom") }
         .filter { it.findProperty("otel.release") == "alpha" }
         .forEach { project ->
           project.plugins.withId("maven-publish") {

bom/build.gradle.kts

@@ -4,8 +4,6 @@ plugins {
 }
 
 description = "OpenTelemetry Bill of Materials"
-group = "io.opentelemetry"
-base.archivesBaseName = "opentelemetry-bom"
 
 rootProject.subprojects.forEach { subproject ->
   if (project != subproject) {
@@ -18,7 +16,7 @@ afterEvaluate {
     constraints {
       rootProject.subprojects
         .sortedBy { it.findProperty("archivesBaseName") as String? }
-        .filter { !it.name.startsWith("bom") }
+        .filter { !it.name.startsWith("opentelemetry-bom") }
         .filter { !it.hasProperty("otel.release") }
         .forEach { project ->
           project.plugins.withId("maven-publish") {

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

@@ -12,11 +12,13 @@ plugins {
 val latestReleasedVersion: String by lazy {
   // hack to find the current released version of the project
   val temp: Configuration = configurations.create("tempConfig")
-  // pick the api, since it's always there.
-  dependencies.add(temp.name, "io.opentelemetry:opentelemetry-api:latest.release")
+  // Pick the bom, since it's always there. Picking the api gives us the currently built version
+  // when executing this from the context of the api project. But we never compare the bom's API
+  // since there is none.
+  dependencies.add(temp.name, "io.opentelemetry:opentelemetry-bom:latest.release")
   val moduleVersion = configurations["tempConfig"].resolvedConfiguration.firstLevelModuleDependencies.elementAt(0).moduleVersion
   configurations.remove(temp)
-  logger.debug("Discovered latest release version: " + moduleVersion)
+  logger.info("Discovered latest release version: {}", moduleVersion)
   moduleVersion
 }
 
@@ -43,7 +45,7 @@ fun findArtifact(version: String): File {
 }
 
 // generate the api diff report for any module that is stable and publishes a jar.
-if (!project.hasProperty("otel.release") && !project.name.startsWith("bom")) {
+if (!project.hasProperty("otel.release") && !project.name.startsWith("opentelemetry-bom")) {
   afterEvaluate {
     tasks {
       val jApiCmp by registering(JapicmpTask::class) {
@@ -67,6 +69,7 @@ if (!project.hasProperty("otel.release") && !project.name.startsWith("bom")) {
           //if we can't find the baseline artifact, this is probably one that's never been published before,
           //so publish the whole API. We do that by flipping this flag, and comparing the current against nothing.
           isOnlyModified = false
+          logger.warn("Project is new because and old version couldn't be found: {}", e.toString())
           files()
         }
 

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

@@ -15,14 +15,6 @@ plugins {
 
 val otelJava = extensions.create<OtelJavaExtension>("otelJava")
 
-base {
-  // May be set already by a parent project, only set if not.
-  // TODO(anuraaga): Make this less hacky by creating a "module group" plugin.
-  if (!archivesName.get().startsWith("opentelemetry-")) {
-    archivesName.set("opentelemetry-${name}")
-  }
-}
-
 java {
   toolchain {
     languageVersion.set(JavaLanguageVersion.of(11))
@@ -64,7 +56,7 @@ tasks {
       }
 
       //disable deprecation warnings for the protobuf module
-      if (project.name == "proto") {
+      if (project.name == "opentelemetry-proto") {
         compilerArgs.add("-Xlint:-deprecation")
       }
 
@@ -175,7 +167,7 @@ dependencies {
   dependencyManagement(platform(project(":dependencyManagement")))
   afterEvaluate {
     configurations.configureEach {
-      if (isCanBeResolved && !isCanBeConsumed) {
+      if (!isCanBeConsumed && this != dependencyManagement) {
         extendsFrom(dependencyManagement)
       }
     }

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

@@ -1,10 +1,23 @@
+import gradle.kotlin.dsl.accessors._33c50961cbf9e9e490400740be7b5d25.base
+
 plugins {
   `maven-publish`
   signing
 
   id("otel.japicmp-conventions")
 }
 
+base {
+  // May be set already by a parent project, only set if not.
+  // TODO(anuraaga): Make this less hacky by creating a "module group" plugin.
+  if (!project.name.startsWith("opentelemetry-")) {
+    throw Error("archivesName of ${project.path} should start with opentelemetry-")
+  }
+}
+
+// We must not change group ID or artifact ID here, otherwise composite builds won't work.
+// Ensure that the project name matches the expected artifact ID.
+
 publishing {
   publications {
     register<MavenPublication>("mavenPublication") {
@@ -14,10 +27,8 @@ publishing {
         versionParts[0] += "-${release}"
         version = versionParts.joinToString("-")
       }
-      groupId = "io.opentelemetry"
       afterEvaluate {
         // not available until evaluated.
-        artifactId = base.archivesName.get()
         pom.description.set(project.description)
       }
 

context/build.gradle.kts

@@ -31,7 +31,7 @@ dependencies {
   add("otelAsBraveTestImplementation", "io.zipkin.brave:brave")
   add("otelInBraveTestImplementation", "io.zipkin.brave:brave")
 
-  add("strictContextEnabledTestImplementation", project(":api:all"))
+  add("strictContextEnabledTestImplementation", project(":api:opentelemetry-api"))
 
   // MustBeClosed
   compileOnly("com.google.errorprone:error_prone_annotations")

examples/sdk-usage/src/main/java/io/opentelemetry/sdk/example/ConfigureSpanProcessorExample.java

@@ -5,9 +5,11 @@
 
 package io.opentelemetry.sdk.example;
 
+import io.opentelemetry.api.common.AttributeKey;
 import io.opentelemetry.api.trace.Tracer;
 import io.opentelemetry.exporter.logging.LoggingSpanExporter;
 import io.opentelemetry.sdk.OpenTelemetrySdk;
+import io.opentelemetry.sdk.resources.Resource;
 import io.opentelemetry.sdk.trace.SdkTracerProvider;
 import io.opentelemetry.sdk.trace.SpanProcessor;
 import io.opentelemetry.sdk.trace.export.BatchSpanProcessor;
@@ -25,6 +27,9 @@ public final class ConfigureSpanProcessorExample {
   private static final Tracer tracer = openTelemetry.getTracer("ConfigureSpanProcessorExample");
 
   public static void main(String[] args) {
+    System.out.println(
+        Resource.getDefault().getAttribute(AttributeKey.stringKey("telemetry.sdk.version")));
+
     // Example how to configure the default SpanProcessors.
     defaultSpanProcessors();
     // After this method, the following SpanProcessors are registered:

exporters/jaeger-thrift/build.gradle.kts

@@ -9,10 +9,10 @@ description = "OpenTelemetry - Jaeger Thrift Exporter"
 otelJava.moduleName.set("io.opentelemetry.exporter.jaeger.thrift")
 
 dependencies {
-  api(project(":sdk:all"))
+  api(project(":sdk:opentelemetry-sdk"))
 
-  implementation(project(":sdk:all"))
-  implementation(project(":semconv"))
+  implementation(project(":sdk:opentelemetry-sdk"))
+  implementation(project(":opentelemetry-semconv"))
 
   implementation("io.jaegertracing:jaeger-client")
 
@@ -21,5 +21,5 @@ dependencies {
   testImplementation("com.squareup.okhttp3:okhttp")
   testImplementation("com.google.guava:guava-testlib")
 
-  testImplementation(project(":sdk:testing"))
+  testImplementation(project(":sdk:opentelemetry-sdk-testing"))
 }

exporters/jaeger/build.gradle.kts

@@ -9,11 +9,11 @@ description = "OpenTelemetry - Jaeger Exporter"
 otelJava.moduleName.set("io.opentelemetry.exporter.jaeger")
 
 dependencies {
-  api(project(":sdk:all"))
+  api(project(":sdk:opentelemetry-sdk"))
   api("io.grpc:grpc-api")
 
-  implementation(project(":sdk:all"))
-  implementation(project(":semconv"))
+  implementation(project(":sdk:opentelemetry-sdk"))
+  implementation(project(":opentelemetry-semconv"))
 
   implementation("io.grpc:grpc-protobuf")
   implementation("io.grpc:grpc-stub")
@@ -26,7 +26,7 @@ dependencies {
   testImplementation("com.google.protobuf:protobuf-java-util")
   testImplementation("com.squareup.okhttp3:okhttp")
 
-  testImplementation(project(":sdk:testing"))
+  testImplementation(project(":sdk:opentelemetry-sdk-testing"))
 
   testRuntimeOnly("io.grpc:grpc-netty-shaded")
 }

exporters/logging-otlp/build.gradle.kts

@@ -9,15 +9,15 @@ description = "OpenTelemetry Protocol JSON Logging Exporters"
 otelJava.moduleName.set("io.opentelemetry.exporter.logging.otlp")
 
 dependencies {
-  compileOnly(project(":sdk:trace"))
-  compileOnly(project(":sdk:metrics"))
+  compileOnly(project(":sdk:opentelemetry-sdk-trace"))
+  compileOnly(project(":sdk:opentelemetry-sdk-metrics"))
 
-  implementation(project(":exporters:otlp:common"))
-  implementation(project(":proto"))
+  implementation(project(":exporters:otlp:opentelemetry-exporter-otlp-common"))
+  implementation(project(":opentelemetry-proto"))
 
   implementation("org.curioswitch.curiostack:protobuf-jackson")
 
-  testImplementation(project(":sdk:testing"))
+  testImplementation(project(":sdk:opentelemetry-sdk-testing"))
 
   testImplementation("org.skyscreamer:jsonassert")
 }

exporters/logging/build.gradle.kts

@@ -9,8 +9,8 @@ description = "OpenTelemetry - Logging Exporter"
 otelJava.moduleName.set("io.opentelemetry.exporter.logging")
 
 dependencies {
-  api(project(":sdk:all"))
-  api(project(":sdk:metrics"))
+  api(project(":sdk:opentelemetry-sdk"))
+  api(project(":sdk:opentelemetry-sdk-metrics"))
 
-  testImplementation(project(":sdk:testing"))
+  testImplementation(project(":sdk:opentelemetry-sdk-testing"))
 }

exporters/otlp-http/metrics/build.gradle.kts

@@ -9,16 +9,16 @@ description = "OpenTelemetry Protocol HTTP Metrics Exporter"
 otelJava.moduleName.set("io.opentelemetry.exporter.otlp.http.metrics")
 
 dependencies {
-  api(project(":sdk:metrics"))
+  api(project(":sdk:opentelemetry-sdk-metrics"))
 
-  implementation(project(":exporters:otlp:common"))
+  implementation(project(":exporters:otlp:opentelemetry-exporter-otlp-common"))
 
   implementation("com.squareup.okhttp3:okhttp")
   implementation("com.squareup.okhttp3:okhttp-tls")
   implementation("com.squareup.okio:okio")
 
-  testImplementation(project(":proto"))
-  testImplementation(project(":sdk:testing"))
+  testImplementation(project(":opentelemetry-proto"))
+  testImplementation(project(":sdk:opentelemetry-sdk-testing"))
 
   testImplementation("com.google.api.grpc:proto-google-common-protos")
   testImplementation("com.linecorp.armeria:armeria-junit5")

exporters/otlp-http/trace/build.gradle.kts

@@ -9,16 +9,16 @@ description = "OpenTelemetry Protocol HTTP Trace Exporter"
 otelJava.moduleName.set("io.opentelemetry.exporter.otlp.http.trace")
 
 dependencies {
-  api(project(":sdk:trace"))
+  api(project(":sdk:opentelemetry-sdk-trace"))
 
-  implementation(project(":exporters:otlp:common"))
+  implementation(project(":exporters:otlp:opentelemetry-exporter-otlp-common"))
 
   implementation("com.squareup.okhttp3:okhttp")
   implementation("com.squareup.okhttp3:okhttp-tls")
   implementation("com.squareup.okio:okio")
 
-  testImplementation(project(":proto"))
-  testImplementation(project(":sdk:testing"))
+  testImplementation(project(":opentelemetry-proto"))
+  testImplementation(project(":sdk:opentelemetry-sdk-testing"))
 
   testImplementation("com.google.api.grpc:proto-google-common-protos")
   testImplementation("com.linecorp.armeria:armeria-junit5")

exporters/otlp/all/build.gradle.kts

@@ -8,8 +8,7 @@ plugins {
 
 description = "OpenTelemetry Protocol Exporters"
 otelJava.moduleName.set("io.opentelemetry.exporter.otlp")
-base.archivesBaseName = "opentelemetry-exporter-otlp"
 
 dependencies {
-  api(project(":exporters:otlp:trace"))
+  api(project(":exporters:otlp:opentelemetry-exporter-otlp-trace"))
 }