Fix resource registration hints in the TestContext framework

Resource patterns registered for inclusion in a GraalVM native image
must not start with a leading slash.

Author: sbrannen

spring-test/src/main/java/org/springframework/test/context/aot/hint/StandardTestRuntimeHints.java

@@ -114,8 +114,8 @@ private void registerClasspathResourceDirectoryStructure(RuntimeHints runtimeHin
 
 	private String cleanClasspathResource(String location) {
 		location = location.substring(CLASSPATH_URL_PREFIX.length());
-		if (!location.startsWith(SLASH)) {
-			location = SLASH + location;
+		if (location.startsWith(SLASH)) {
+			location = location.substring(1);
 		}
 		return location;
 	}

spring-test/src/main/java/org/springframework/test/context/jdbc/SqlScriptsTestExecutionListener.java

@@ -399,8 +399,8 @@ private void registerClasspathResources(RuntimeHints runtimeHints, String... loc
 
 	private String cleanClasspathResource(String location) {
 		location = location.substring(CLASSPATH_URL_PREFIX.length());
-		if (!location.startsWith(SLASH)) {
-			location = SLASH + location;
+		if (location.startsWith(SLASH)) {
+			location = location.substring(1);
 		}
 		return location;
 	}

spring-test/src/test/java/org/springframework/test/context/aot/TestContextAotGeneratorTests.java

@@ -181,21 +181,21 @@ private static void assertRuntimeHints(RuntimeHints runtimeHints) {
 		).forEach(type -> assertReflectionRegistered(runtimeHints, type, INVOKE_DECLARED_CONSTRUCTORS));
 
 		// @ContextConfiguration(locations = ...)
-		assertThat(resource().forResource("/org/springframework/test/context/aot/samples/xml/test-config.xml"))
+		assertThat(resource().forResource("org/springframework/test/context/aot/samples/xml/test-config.xml"))
 			.accepts(runtimeHints);
 
 		// @TestPropertySource(locations = ...)
-		assertThat(resource().forResource("/org/springframework/test/context/aot/samples/basic/BasicSpringVintageTests.properties"))
+		assertThat(resource().forResource("org/springframework/test/context/aot/samples/basic/BasicSpringVintageTests.properties"))
 			.accepts(runtimeHints);
 
 		// @WebAppConfiguration(value = ...)
-		assertThat(resource().forResource("/META-INF/web-resources/resources/Spring.js")).accepts(runtimeHints);
-		assertThat(resource().forResource("/META-INF/web-resources/WEB-INF/views/home.jsp")).accepts(runtimeHints);
+		assertThat(resource().forResource("META-INF/web-resources/resources/Spring.js")).accepts(runtimeHints);
+		assertThat(resource().forResource("META-INF/web-resources/WEB-INF/views/home.jsp")).accepts(runtimeHints);
 
 		// @Sql(scripts = ...)
-		assertThat(resource().forResource("/org/springframework/test/context/jdbc/schema.sql"))
+		assertThat(resource().forResource("org/springframework/test/context/jdbc/schema.sql"))
 			.accepts(runtimeHints);
-		assertThat(resource().forResource("/org/springframework/test/context/aot/samples/jdbc/SqlScriptsSpringJupiterTests.test.sql"))
+		assertThat(resource().forResource("org/springframework/test/context/aot/samples/jdbc/SqlScriptsSpringJupiterTests.test.sql"))
 			.accepts(runtimeHints);
 	}