Fixes GemFire client/server integratione tests issue when setting JAVA_TOOL_OPTIONS env var

Fixes gh-669

samples/xml/gemfire-clientserver/build.gradle

@@ -1,7 +1,7 @@
 apply from: JAVA_GRADLE
+apply from: SAMPLE_GRADLE
 apply from: TOMCAT_7_GRADLE
 apply plugin: "application"
-apply from: SAMPLE_GRADLE
 
 dependencies {
 	compile project(':spring-session-data-gemfire'),
@@ -37,7 +37,10 @@ task availablePort() {
 
 task runGemFireServer(dependsOn: availablePort) {
 	doLast {
-		println 'STARTING GEMFIRE SERVER...'
+		println "Starting GemFire Server on port [$port]..."
+
+		def out = new StringBuilder()
+		def err = new StringBuilder()
 
 		String classpath = sourceSets.main.runtimeClasspath.collect { it }.join(File.pathSeparator)
 		String gemfireLogLevel = System.getProperty('sample.httpsession.gemfire.log-level', 'warning')
@@ -52,14 +55,16 @@ task runGemFireServer(dependsOn: availablePort) {
 		//println commandLine
 
 		process = commandLine.execute()
-		process.in.close()
-		process.out.close()
-		process.err.close()
+
+		process.consumeProcessOutput(out, err)
+
+		//println 'OUT: ' + out
+		//println 'ERR: ' + err
 	}
 }
 
 integrationTest.doLast {
-	println 'STOPPING GEMFIRE SERVER...'
+	println 'Stopping GemFire Server...'
 	process?.destroyForcibly()
 }
 

samples/xml/gemfire-clientserver/src/main/java/sample/Application.java

@@ -27,8 +27,7 @@ import org.springframework.context.annotation.ImportResource;
 public class Application {
 
 	public static void main(final String[] args) {
-		new AnnotationConfigApplicationContext(Application.class)
-			.registerShutdownHook();
+		new AnnotationConfigApplicationContext(Application.class).registerShutdownHook();
 	}
 }
 // tag::end[]