Check for classpath change is back

Back to complete the revert of including tracking output folder contents
into classpath changed event

headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/jdt/ls/JdtLsProjectCache.java

@@ -360,6 +360,10 @@ public class JdtLsProjectCache implements InitializableJavaProjectsService, Serv
 							URI projectUri = new URI(uri);
 							ClasspathData classpath = new ClasspathData(event.name, event.classpath.getEntries());
 							IJavaProject oldProject = table.get(uri);
+							if (oldProject != null && classpath.equals(oldProject.getClasspath())) {
+								// nothing has changed
+								return;
+							}
 							IProjectBuild projectBuild = from(event.projectBuild);							
 							IJavaProject newProject = IS_JANDEX_INDEX
 									? new JavaProject(getFileObserver(), projectUri, classpath,