René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Failed to resolve classpath: Main class 'Main' isn't unique in the workspace","articleBody":"Open a java folder, see the screenshot below.\r\n\u003cimg width=\"369\" alt=\"screen shot 2017-09-14 at 10 30 31 am\" src=\"https://user-images.githubusercontent.com/14052197/30409470-cd01ab12-9937-11e7-8b1f-f9e2622dfa2e.png\"\u003e\r\n\r\nAnd click F5 to launch, it popup a message box saying that `Failed to resolve classpath: Main class 'Main' isn't unique in the workspace, please pass in specified projectname.`.\r\n\r\nApparently it's not a normal eclipse/maven/gradle project, but just a simple java file. In such case, these java files will be linked to a fake project. It seems the main class isn't unique in the fake project. But in such case, user doesn't know how to specify project name. We need figure out how to handle such kind of case.","author":{"url":"https://github.com/testforstephen","@type":"Person","name":"testforstephen"},"datePublished":"2017-09-14T02:41:33.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":7},"url":"https://github.com/21/java-debug/issues/21"}