LOG4J2-1359 - Remove print statement

log4j-api/src/main/java/org/apache/logging/log4j/util/ReflectionUtil.java

@@ -61,7 +61,6 @@ public final class ReflectionUtil {
     static {
         Method getCallerClass;
         int java7u25CompensationOffset = 0;
-        System.out.println("Using Java 7 ReflectionUtil");
         try {
             final Class<?> sunReflectionClass = LoaderUtil.loadClass("sun.reflect.Reflection");
             getCallerClass = sunReflectionClass.getDeclaredMethod("getCallerClass", int.class);

log4j-core/src/main/java/org/apache/logging/log4j/core/impl/LocationLocator.java

@@ -21,11 +21,6 @@ package org.apache.logging.log4j.core.impl;
  */
 public class LocationLocator {
 
-    static {
-        System.out.println("Using Java 7 Locator");
-    }
-
-
     public static StackTraceElement calcLocation(final String fqcnOfLogger) {
         if (fqcnOfLogger == null) {
             return null;

log4j-perf/src/main/java/org/apache/logging/log4j/perf/jmh/Log4jLogEventBenchmark.java

@@ -70,21 +70,27 @@ public class Log4jLogEventBenchmark {
     }
 
     @Benchmark
-    public Serializable createSerializableLogEventProxyWithoutException() {
+    public Serializable createSerializableLogEventProxyWithoutException(final Blackhole bh) {
         final Log4jLogEvent event = new Log4jLogEvent("a.b.c", null, "a.b.c", Level.INFO, MESSAGE, null, null);
-        return Log4jLogEvent.serialize(event, false);
+        Serializable obj = Log4jLogEvent.serialize(event, false);
+        bh.consume(obj);
+        return obj;
     }
 
     @Benchmark
-    public Serializable createSerializableLogEventProxyWithoutExceptionWithLocation() {
+    public Serializable createSerializableLogEventProxyWithoutExceptionWithLocation(final Blackhole bh) {
         final Log4jLogEvent event = new Log4jLogEvent("a.b.c", null, "a.b.c", Level.INFO, MESSAGE, null, null);
-        return Log4jLogEvent.serialize(event, true);
+        Serializable obj = Log4jLogEvent.serialize(event, true);
+        bh.consume(obj);
+        return obj;
     }
 
     @Benchmark
     public Serializable createSerializableLogEventProxyWithException(final Blackhole bh) {
         final Log4jLogEvent event = new Log4jLogEvent("a.b.c", null, "a.b.c", Level.INFO, MESSAGE, null, ERROR);
-        return Log4jLogEvent.serialize(event, false);
+        Serializable obj = Log4jLogEvent.serialize(event, false);
+        bh.consume(obj);
+        return obj;
     }
 
     private static class TestClass {