Set PID early for logging

Set PID early in the initialization process to ensure log enties are
not written without an ID.

spring-bootstrap/src/main/java/org/springframework/bootstrap/context/initializer/LoggingApplicationContextInitializer.java

@@ -82,6 +82,9 @@ public class LoggingApplicationContextInitializer implements
 
 	@Override
 	public void initialize(SpringApplication springApplication) {
+		if (System.getProperty("PID") == null) {
+			System.setProperty("PID", getPid());
+		}
 		LoggingSystem.get(springApplication.getClass().getClassLoader())
 				.beforeInitialize();
 	}
@@ -103,10 +106,6 @@ public class LoggingApplicationContextInitializer implements
 			}
 		}
 
-		if (System.getProperty("PID") == null) {
-			System.setProperty("PID", getPid());
-		}
-
 		LoggingSystem system = LoggingSystem.get(applicationContext.getClassLoader());
 
 		// User specified configuration

spring-bootstrap/src/test/java/org/springframework/bootstrap/context/initializer/LoggingApplicationContextInitializerTests.java

@@ -29,6 +29,7 @@ import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.TemporaryFolder;
+import org.springframework.bootstrap.SpringApplication;
 import org.springframework.bootstrap.logging.java.JavaLoggingSystem;
 import org.springframework.context.support.GenericApplicationContext;
 import org.springframework.core.env.PropertySource;
@@ -61,6 +62,7 @@ public class LoggingApplicationContextInitializerTests {
 		System.setOut(new PrintStream(this.output));
 		LogManager.getLogManager().readConfiguration(
 				JavaLoggingSystem.class.getResourceAsStream("logging.properties"));
+		this.initializer.initialize(new SpringApplication());
 	}
 
 	@After