Reduce test visibility, close exporters

Author: JonasKunz

exporters/otlp/all/src/test/java/io/opentelemetry/exporter/otlp/http/metrics/OtlpHttpMetricExporterBuilderTest.java

@@ -13,10 +13,10 @@
 import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
 
-public class OtlpHttpMetricExporterBuilderTest {
+class OtlpHttpMetricExporterBuilderTest {
 
   @Test
-  public void verifyToBuilderPreservesSettings() {
+  void verifyToBuilderPreservesSettings() {
     AggregationTemporalitySelector temporalitySelector =
         Mockito.mock(AggregationTemporalitySelector.class);
     DefaultAggregationSelector defaultAggregationSelector =
@@ -34,5 +34,8 @@ public void verifyToBuilderPreservesSettings() {
     assertThat(copy.getMemoryMode()).isEqualTo(MemoryMode.IMMUTABLE_DATA);
     assertThat(copy.aggregationTemporalitySelector).isSameAs(temporalitySelector);
     assertThat(copy.defaultAggregationSelector).isSameAs(defaultAggregationSelector);
+
+    original.close();
+    copy.close();
   }
 }

exporters/otlp/all/src/test/java/io/opentelemetry/exporter/otlp/metrics/OtlpGrpcMetricExporterBuilderTest.java

@@ -13,10 +13,10 @@
 import org.junit.jupiter.api.Test;
 import org.mockito.Mockito;
 
-public class OtlpGrpcMetricExporterBuilderTest {
+class OtlpGrpcMetricExporterBuilderTest {
 
   @Test
-  public void verifyToBuilderPreservesSettings() {
+  void verifyToBuilderPreservesSettings() {
     AggregationTemporalitySelector temporalitySelector =
         Mockito.mock(AggregationTemporalitySelector.class);
     DefaultAggregationSelector defaultAggregationSelector =
@@ -34,5 +34,8 @@ public void verifyToBuilderPreservesSettings() {
     assertThat(copy.getMemoryMode()).isEqualTo(MemoryMode.IMMUTABLE_DATA);
     assertThat(copy.aggregationTemporalitySelector).isSameAs(temporalitySelector);
     assertThat(copy.defaultAggregationSelector).isSameAs(defaultAggregationSelector);
+
+    original.close();
+    copy.close();
   }
 }