Update errorProneVersion to v2.21.1 (#9146)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Lauri Tulmin <[email protected]>

dependencyManagement/build.gradle.kts

@@ -42,7 +42,7 @@ val DEPENDENCY_BOMS = listOf(
 
 val autoServiceVersion = "1.1.1"
 val autoValueVersion = "1.10.2"
-val errorProneVersion = "2.21.0"
+val errorProneVersion = "2.21.1"
 val byteBuddyVersion = "1.14.5"
 val asmVersion = "9.5"
 val jmhVersion = "1.37"

instrumentation-api-semconv/src/test/java/io/opentelemetry/instrumentation/api/instrumenter/net/InetSocketAddressNetClientAttributesGetterTest.java

@@ -56,6 +56,7 @@ void noInetSocketAddress() {
   }
 
   @Test
+  @SuppressWarnings("AddressSelection")
   void fullAddress() {
     // given
     InetSocketAddress address = new InetSocketAddress("api.github.com", 456);

instrumentation-api-semconv/src/test/java/io/opentelemetry/instrumentation/api/instrumenter/net/InetSocketAddressNetServerAttributesGetterTest.java

@@ -59,6 +59,7 @@ void noInetSocketAddress() {
   }
 
   @Test
+  @SuppressWarnings("AddressSelection")
   void fullAddress() {
     // given
     Addresses request =

instrumentation-api-semconv/src/test/java/io/opentelemetry/instrumentation/api/instrumenter/network/ClientAttributesExtractorInetSocketAddressTest.java

@@ -45,6 +45,7 @@ public InetSocketAddress getClientInetSocketAddress(
   }
 
   @Test
+  @SuppressWarnings("AddressSelection")
   void fullAddress() {
     InetSocketAddress address = new InetSocketAddress("api.github.com", 456);
     assertThat(address.getAddress().getHostAddress()).isNotNull();

instrumentation-api-semconv/src/test/java/io/opentelemetry/instrumentation/api/instrumenter/network/ServerAttributesExtractorInetSocketAddressTest.java

@@ -45,6 +45,7 @@ public InetSocketAddress getServerInetSocketAddress(
   }
 
   @Test
+  @SuppressWarnings("AddressSelection")
   void fullAddress() {
     InetSocketAddress address = new InetSocketAddress("api.github.com", 456);
     assertThat(address.getAddress().getHostAddress()).isNotNull();

instrumentation/reactor/reactor-netty/reactor-netty-1.0/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/reactornetty/v1_0/CustomNameResolverGroup.java

@@ -35,6 +35,7 @@ private CustomNameResolver(EventExecutor executor) {
     }
 
     @Override
+    @SuppressWarnings("AddressSelection")
     protected void doResolve(String inetHost, Promise<InetAddress> promise) {
       try {
         promise.setSuccess(InetAddress.getByName(inetHost));
@@ -44,6 +45,7 @@ protected void doResolve(String inetHost, Promise<InetAddress> promise) {
     }
 
     @Override
+    @SuppressWarnings("AddressSelection")
     protected void doResolveAll(String inetHost, Promise<List<InetAddress>> promise) {
       try {
         // default implementation calls InetAddress.getAllByName

testing-common/src/main/java/io/opentelemetry/instrumentation/test/utils/PortUtils.java

@@ -25,6 +25,7 @@ public static int findOpenPort() {
     return portAllocator.getPort();
   }
 
+  @SuppressWarnings("AddressSelection")
   private static boolean isPortOpen(int port) {
     try (Socket socket = new Socket((String) null, port)) {
       return true;