add OSGi manifest headers for jars

Author: bdhoine

buildSrc/build.gradle.kts

@@ -14,4 +14,5 @@ dependencies {
   implementation("me.champeau.gradle:japicmp-gradle-plugin:0.4.2")
   // Needed for japicmp but not automatically brought in for some reason.
   implementation("com.google.guava:guava:32.1.3-jre")
+  implementation("biz.aQute.bnd:biz.aQute.bnd.gradle:7.0.0")
 }

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

@@ -8,6 +8,7 @@ plugins {
   eclipse
   idea
 
+  id("biz.aQute.bnd.builder")
   id("otel.spotless-conventions")
 }
 
@@ -88,11 +89,13 @@ tasks {
 
     manifest {
       attributes(
-          "Automatic-Module-Name" to otelJava.moduleName,
+        "Automatic-Module-Name" to otelJava.moduleName,
         "Built-By" to System.getProperty("user.name"),
         "Built-JDK" to System.getProperty("java.version"),
         "Implementation-Title" to project.base.archivesName,
-        "Implementation-Version" to project.version)
+        "Implementation-Version" to project.version,
+        "-exportcontents" to "io.opentelemetry.semconv.*"
+      )
     }
   }