Index: log4j-core/src/main/java/org/apache/logging/log4j/core/util/DefaultShutdownCallbackRegistry.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- log4j-core/src/main/java/org/apache/logging/log4j/core/util/DefaultShutdownCallbackRegistry.java	(date 1475431991000)
+++ log4j-core/src/main/java/org/apache/logging/log4j/core/util/DefaultShutdownCallbackRegistry.java	(revision )
@@ -72,8 +72,13 @@
             for (final Runnable hook : hooks) {
                 try {
                     hook.run();
-                } catch (final Throwable t) {
-                    LOGGER.error(SHUTDOWN_HOOK_MARKER, "Caught exception executing shutdown hook {}", hook, t);
+                } catch (final Throwable t1) {
+                    try {
+                        LOGGER.error(SHUTDOWN_HOOK_MARKER, "Caught exception executing shutdown hook {}", hook, t1);
+                    } catch (final Throwable t2) {
+                        System.err.println("Caught exception logging exception");
+                        t1.printStackTrace();
+                    }
                 }
             }
             state.set(State.STOPPED);
Index: log4j-core/src/main/java/org/apache/logging/log4j/core/LoggerContext.java
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- log4j-core/src/main/java/org/apache/logging/log4j/core/LoggerContext.java	(date 1475431991000)
+++ log4j-core/src/main/java/org/apache/logging/log4j/core/LoggerContext.java	(revision )
@@ -54,6 +54,7 @@
 import org.apache.logging.log4j.spi.LoggerContextFactory;
 import org.apache.logging.log4j.spi.LoggerRegistry;
 import org.apache.logging.log4j.spi.Terminable;
+import org.apache.logging.log4j.util.LoaderUtil;
 import org.apache.logging.log4j.util.PropertiesUtil;
 
 /**
@@ -70,6 +71,15 @@
     public static final String PROPERTY_CONFIG = "config";
 
     private static final Configuration NULL_CONFIGURATION = new NullConfiguration();
+
+    static {
+        try {
+            // LOG4J2-1642 preload ExecutorServices as it is used in shutdown hook
+            LoaderUtil.loadClass(ExecutorServices.class.getName());
+        } catch (final Exception e) {
+            LOGGER.error("Failed to preload ExecutorServices class.", e);
+        }
+    }
 
     private final LoggerRegistry<Logger> loggerRegistry = new LoggerRegistry<>();
     private final CopyOnWriteArrayList<PropertyChangeListener> propertyChangeListeners = new CopyOnWriteArrayList<>();