Polish

spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/Layouts.java

@@ -31,7 +31,10 @@ import java.util.Set;
  * @author Dave Syer
  * @author Andy Wilkinson
  */
-public class Layouts {
+public final class Layouts {
+
+	private Layouts() {
+	}
 
 	/**
 	 * Return the a layout for the given source file.

spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/LibraryScope.java

@@ -25,6 +25,9 @@ package org.springframework.boot.loader.tools;
  */
 public interface LibraryScope {
 
+	@Override
+	String toString();
+
 	/**
 	 * The library is used at compile time and runtime.
 	 */

spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/RunProcess.java

@@ -147,6 +147,7 @@ public class RunProcess {
 					reader.close();
 				}
 				catch (Exception ex) {
+					// Ignore
 				}
 			}
 

spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/SignalUtils.java

@@ -26,10 +26,13 @@ import sun.misc.SignalHandler;
  * @since 1.1.0
  */
 @SuppressWarnings("restriction")
-public class SignalUtils {
+public final class SignalUtils {
 
 	private static final Signal SIG_INT = new Signal("INT");
 
+	private SignalUtils() {
+	}
+
 	/**
 	 * Handle {@literal INT} signals by calling the specified {@link Runnable}
 	 * @param runnable the runnable to call on SIGINT.

spring-boot-tools/spring-boot-loader-tools/src/test/java/org/springframework/boot/loader/tools/sample/ClassWithMainMethod.java

@@ -23,7 +23,12 @@ package org.springframework.boot.loader.tools.sample;
  */
 public class ClassWithMainMethod {
 
+	public void run() {
+		System.out.println("Hello World");
+	}
+
 	public static void main(String[] args) {
+		new ClassWithMainMethod().run();
 	}
 
 }