Update to OTel 1.12 (#247)

Author: anuraaga

buildscripts/draft-release-notes.sh

@@ -18,8 +18,8 @@ val DEPENDENCY_BOMS = listOf(
     "org.junit:junit-bom:5.8.2",
     "com.linecorp.armeria:armeria-bom:1.9.1",
     "io.grpc:grpc-bom:1.42.1",
-    "io.opentelemetry:opentelemetry-bom:1.11.0",
-    "io.opentelemetry:opentelemetry-bom-alpha:1.11.0-alpha",
+    "io.opentelemetry:opentelemetry-bom:1.12.0",
+    "io.opentelemetry:opentelemetry-bom-alpha:1.12.0-alpha",
     "org.testcontainers:testcontainers-bom:1.16.3"
 )
 

dependencyManagement/build.gradle.kts

@@ -275,7 +275,8 @@ public void registerDoubleCounterCallback(
         .setDescription(description)
         .setUnit(unit)
         .buildWithCallback(
-            proxiedDoubleObserver(name, description, unit, InstrumentType.OBSERVABLE_SUM, updater));
+            proxiedDoubleObserver(
+                name, description, unit, InstrumentType.OBSERVABLE_COUNTER, updater));
   }
 
   /**
@@ -296,7 +297,8 @@ public void registerLongCounterCallback(
         .setDescription(description)
         .setUnit(unit)
         .buildWithCallback(
-            proxiedLongObserver(name, description, unit, InstrumentType.OBSERVABLE_SUM, updater));
+            proxiedLongObserver(
+                name, description, unit, InstrumentType.OBSERVABLE_COUNTER, updater));
   }
 
   /**
@@ -319,7 +321,7 @@ public void registerDoubleUpDownCounterCallback(
         .setUnit(unit)
         .buildWithCallback(
             proxiedDoubleObserver(
-                name, description, unit, InstrumentType.OBSERVABLE_UP_DOWN_SUM, updater));
+                name, description, unit, InstrumentType.OBSERVABLE_UP_DOWN_COUNTER, updater));
   }
 
   /**
@@ -341,7 +343,7 @@ public void registerLongUpDownCounterCallback(
         .setUnit(unit)
         .buildWithCallback(
             proxiedLongObserver(
-                name, description, unit, InstrumentType.OBSERVABLE_UP_DOWN_SUM, updater));
+                name, description, unit, InstrumentType.OBSERVABLE_UP_DOWN_COUNTER, updater));
   }
 
   private Consumer<ObservableDoubleMeasurement> proxiedDoubleObserver(