remove public in test classes

Author: mznet

instrumentation/opensearch/opensearch-java-3.0/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/opensearch/java/v3_0/AbstractOpenSearchJavaTest.java

@@ -39,7 +39,7 @@
 
 @SuppressWarnings("deprecation") // using deprecated semconv
 @TestInstance(TestInstance.Lifecycle.PER_CLASS)
-public abstract class AbstractOpenSearchJavaTest {
+abstract class AbstractOpenSearchJavaTest {
 
   protected OpenSearchClient openSearchClient;
   protected OpenSearchAsyncClient openSearchAsyncClient;

instrumentation/opensearch/opensearch-java-3.0/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/opensearch/java/v3_0/OpenSearchJavaApacheHttpClient5TransportTest.java

@@ -25,7 +25,7 @@
 import org.opensearch.client.transport.OpenSearchTransport;
 import org.opensearch.client.transport.httpclient5.ApacheHttpClient5TransportBuilder;
 
-public class OpenSearchJavaApacheHttpClient5TransportTest extends AbstractOpenSearchJavaTest {
+class OpenSearchJavaApacheHttpClient5TransportTest extends AbstractOpenSearchJavaTest {
 
   @RegisterExtension
   static final AgentInstrumentationExtension testing = AgentInstrumentationExtension.create();

instrumentation/opensearch/opensearch-java-3.0/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/opensearch/java/v3_0/OpenSearchJavaAwsSdk2TransportTest.java

@@ -51,7 +51,7 @@
 import software.amazon.awssdk.utils.AttributeMap;
 
 @SuppressWarnings("deprecation") // using deprecated semconv
-public class OpenSearchJavaAwsSdk2TransportTest extends AbstractOpenSearchJavaTest {
+class OpenSearchJavaAwsSdk2TransportTest extends AbstractOpenSearchJavaTest {
 
   protected static final MockWebServerExtension server = new MockWebServerExtension();
 

instrumentation/opensearch/opensearch-java-3.0/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/opensearch/java/v3_0/OpenSearchJavaRestClientTransportTest.java

@@ -30,7 +30,7 @@
 @SuppressWarnings(
     "deprecation") // RestClientTransport is deprecated but still the correct way for OpenSearch
 // Java 3.0
-public class OpenSearchJavaRestClientTransportTest extends AbstractOpenSearchJavaTest {
+class OpenSearchJavaRestClientTransportTest extends AbstractOpenSearchJavaTest {
 
   @RegisterExtension
   static final AgentInstrumentationExtension testing = AgentInstrumentationExtension.create();