Initialize DependencyResolutionContext with default dependency mgmt

In the absence of a @GrabMetadata annotation,
DependencyResolutionContext provided no dependency management. This
was leading to incorrect dependency versions being pulled in. This
commit intializes the context with default dependency management that
will be replaced should @GrabMetadata be encountered.

Fixes #1021

spring-boot-cli/src/test/java/org/springframework/boot/cli/ReproIntegrationTests.java

@@ -25,8 +25,9 @@ import static org.junit.Assert.assertThat;
 
 /**
  * Integration tests to exercise and reproduce specific issues.
- * 
+ *
  * @author Phillip Webb
+ * @author Andy Wilkinson
  */
 public class ReproIntegrationTests {
 
@@ -58,6 +59,12 @@ public class ReproIntegrationTests {
 				containsString("{\"message\":\"Hello World\"}"));
 	}
 
+	@Test
+	public void dataJpaDependencies() throws Exception {
+		this.cli.run("data-jpa.groovy");
+		assertThat(this.cli.getOutput(), containsString("Hello World"));
+	}
+
 	@Test
 	public void jarFileExtensionNeeded() throws Exception {
 		this.thrown.expect(IllegalStateException.class);

spring-boot-cli/src/test/java/org/springframework/boot/cli/compiler/grape/AetherGrapeEngineTests.java

@@ -45,7 +45,7 @@ public class AetherGrapeEngineTests {
 	private final AetherGrapeEngine grapeEngine = AetherGrapeEngineFactory.create(
 			this.groovyClassLoader, Arrays.asList(new RepositoryConfiguration("central",
 					URI.create("http://repo1.maven.org/maven2"), false)),
-			new DependencyResolutionContext());
+					new DependencyResolutionContext());
 
 	@Test
 	public void dependencyResolution() {
@@ -54,7 +54,7 @@ public class AetherGrapeEngineTests {
 		this.grapeEngine.grab(args,
 				createDependency("org.springframework", "spring-jdbc", "3.2.4.RELEASE"));
 
-		assertEquals(6, this.groovyClassLoader.getURLs().length);
+		assertEquals(5, this.groovyClassLoader.getURLs().length);
 	}
 
 	@Test
@@ -76,7 +76,7 @@ public class AetherGrapeEngineTests {
 				createDependency("org.springframework", "spring-jdbc", "3.2.4.RELEASE"),
 				createDependency("org.springframework", "spring-beans", "3.2.4.RELEASE"));
 
-		assertEquals(4, this.groovyClassLoader.getURLs().length);
+		assertEquals(3, this.groovyClassLoader.getURLs().length);
 	}
 
 	@Test
@@ -101,7 +101,7 @@ public class AetherGrapeEngineTests {
 				createDependency("org.springframework", "spring-jdbc", "3.2.4.RELEASE"));
 
 		assertEquals(0, this.groovyClassLoader.getURLs().length);
-		assertEquals(6, customClassLoader.getURLs().length);
+		assertEquals(5, customClassLoader.getURLs().length);
 	}
 
 	@Test