[bs-71] "spring run app.groovy" stalls at end (non-daemon thread)

* Change default so that file is not watched (add --watch to watch it)
* The runner thread is set to daemon mode

[Fixes #48716955]

spring-bootstrap-cli/src/main/java/org/springframework/bootstrap/cli/RunCommand.java

@@ -38,7 +38,7 @@ import static java.util.Arrays.asList;
  */
 public class RunCommand extends OptionParsingCommand {
 
-	private OptionSpec<Void> noWatchOption; // FIXME
+	private OptionSpec<Void> watchOption;
 
 	private OptionSpec<Void> editOption;
 
@@ -70,8 +70,8 @@ public class RunCommand extends OptionParsingCommand {
 	@Override
 	protected OptionParser createOptionParser() {
 		OptionParser parser = new OptionParser();
-		this.noWatchOption = parser.accepts("no-watch",
-				"Do not watch the specified file for changes");
+		this.watchOption = parser
+				.accepts("watch", "Watch the specified file for changes");
 		this.editOption = parser.acceptsAll(asList("edit", "e"),
 				"Open the file with the default system editor");
 		this.noGuessImportsOption = parser.accepts("no-guess-imports",
@@ -127,7 +127,7 @@ public class RunCommand extends OptionParsingCommand {
 
 		@Override
 		public boolean isWatchForFileChanges() {
-			return !this.options.has(RunCommand.this.noWatchOption);
+			return this.options.has(RunCommand.this.watchOption);
 		}
 
 		@Override

spring-bootstrap-cli/src/main/java/org/springframework/bootstrap/cli/compiler/autoconfigure/SpringMvcCompilerAutoConfiguration.java

@@ -32,7 +32,8 @@ public class SpringMvcCompilerAutoConfiguration extends CompilerAutoConfiguratio
 
 	@Override
 	public void applyDependencies(DependencyCustomizer dependencies) {
-		dependencies.ifAnyMissingClasses("org.springframework.web.servlet.mvc.Controller")
+		dependencies
+				.ifAnyMissingClasses("org.springframework.web.servlet.mvc.Controller")
 				.add("org.springframework", "spring-webmvc", "4.0.0.BOOTSTRAP-SNAPSHOT");
 
 		dependencies.ifAnyMissingClasses("org.apache.catalina.startup.Tomcat",
@@ -42,8 +43,8 @@ public class SpringMvcCompilerAutoConfiguration extends CompilerAutoConfiguratio
 		// FIXME restore Tomcat when we can get reload to work
 		// dependencies.ifMissingClasses("org.apache.catalina.startup.Tomcat",
 		// "org.eclipse.jetty.server.Server")
-		// .add("org.apache.tomcat.embed", "tomcat-embed-core", "7.0.37")
-		// .add("org.apache.tomcat.embed", "tomcat-embed-logging-juli", "7.0.37");
+		// .add("org.apache.tomcat.embed", "tomcat-embed-core", "7.0.39")
+		// .add("org.apache.tomcat.embed", "tomcat-embed-logging-juli", "7.0.39");
 	}
 
 	@Override

spring-bootstrap-cli/src/main/java/org/springframework/bootstrap/cli/runner/BootstrapRunner.java

@@ -119,6 +119,7 @@ public class BootstrapRunner {
 			if (classes.length != 0) {
 				setContextClassLoader(classes[0].getClassLoader());
 			}
+			setDaemon(true);
 		}
 
 		@Override
@@ -164,6 +165,7 @@ public class BootstrapRunner {
 
 		public FileWatchThread() {
 			this.previous = BootstrapRunner.this.file.lastModified();
+			setDaemon(false);
 		}
 
 		@Override