chore: format and update dependencies for LoggingTracer

Author: blakeli0

sdk-platform-java/gax-java/gax/src/main/java/com/google/api/gax/tracing/LoggingTracerFactory.java

@@ -35,11 +35,12 @@
 import com.google.api.gax.logging.LoggingUtils;
 import com.google.common.annotations.VisibleForTesting;
 
-/** A {@link ApiTracerFactory} that creates instances of {@link LoggingTracer}.
- * This class is intended for internal framework use only. Manual instantiation
- * is discouraged; the lifecycle is managed automatically by the system,
- * when {@link LoggingUtils#isLoggingEnabled()} returning {@code true}.
- * */
+/**
+ * A {@link ApiTracerFactory} that creates instances of {@link LoggingTracer}. This class is
+ * intended for internal framework use only. Manual instantiation is discouraged; the lifecycle is
+ * managed automatically by the system, when {@link LoggingUtils#isLoggingEnabled()} returning
+ * {@code true}.
+ */
 @BetaApi
 @InternalApi
 public class LoggingTracerFactory implements ApiTracerFactory {

sdk-platform-java/java-showcase/gapic-showcase/pom.xml

@@ -233,6 +233,24 @@
     </dependency>
 
     <!--  Logging testing dependencies  -->
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>2.0.16</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>ch.qos.logback</groupId>
+      <artifactId>logback-classic</artifactId>
+      <version>${slf4j2-logback.version}</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>ch.qos.logback</groupId>
+      <artifactId>logback-core</artifactId>
+      <version>${slf4j2-logback.version}</version>
+      <scope>test</scope>
+    </dependency>
 
   </dependencies>
   <profiles>