fix tests

Author: rahul2393

sdk-platform-java/gax-java/gax-grpc/src/test/java/com/google/api/gax/grpc/GrpcLoggingInterceptorTest.java

@@ -60,10 +60,16 @@ class GrpcLoggingInterceptorTest {
   @Mock private ClientCall<String, Integer> call;
 
   private static final MethodDescriptor<String, Integer> method = FakeMethodDescriptor.create();
+  private boolean originalLoggingEnabled;
+
+  @org.junit.jupiter.api.BeforeEach
+  void setUpLoggingState() throws Exception {
+    originalLoggingEnabled = isLoggingEnabled();
+  }
 
   @AfterEach
   void tearDown() throws Exception {
-    setLoggingEnabled(false);
+    setLoggingEnabled(originalLoggingEnabled);
   }
 
   @Test
@@ -141,4 +147,11 @@ private static void setLoggingEnabled(boolean enabled) throws Exception {
     method.setAccessible(true);
     method.invoke(null, enabled);
   }
+
+  private static boolean isLoggingEnabled() throws Exception {
+    Class<?> loggingUtils = Class.forName("com.google.api.gax.logging.LoggingUtils");
+    Method method = loggingUtils.getDeclaredMethod("isLoggingEnabled");
+    method.setAccessible(true);
+    return (boolean) method.invoke(null);
+  }
 }

sdk-platform-java/gax-java/gax/src/main/java/com/google/api/gax/logging/Slf4jUtils.java

@@ -47,8 +47,6 @@
 class Slf4jUtils {
 
   private static final Logger NO_OP_LOGGER = org.slf4j.helpers.NOPLogger.NOP_LOGGER;
-  private static final boolean loggingEnabled = LoggingUtils.isLoggingEnabled();
-
   private static final boolean isSLF4J2x;
 
   static {
@@ -70,7 +68,7 @@ static Logger getLogger(Class<?> clazz) {
 
   // constructor with LoggerFactoryProvider to make testing easier
   static Logger getLogger(Class<?> clazz, LoggerFactoryProvider factoryProvider) {
-    if (loggingEnabled) {
+    if (LoggingUtils.isLoggingEnabled()) {
       ILoggerFactory loggerFactory = factoryProvider.getLoggerFactory();
       return loggerFactory.getLogger(clazz.getName());
     } else {