René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"StringIndexOutOfBoundsException","articleBody":"On run Main: Java 1.7 and 1.8\n\nException in thread \"main\" java.lang.StringIndexOutOfBoundsException: String index out of range: -1\n    at java.lang.String.substring(String.java:1911)\n    at com.blogspot.programmingheroes.supermariojava.loaders.Loader.\u003cinit\u003e(Loader.java:75)\n    at com.blogspot.programmingheroes.supermariojava.loaders.ImagesLoader.\u003cinit\u003e(ImagesLoader.java:51)\n    at com.blogspot.programmingheroes.supermariojava.Main.\u003cinit\u003e(Main.java:55)\n    at com.blogspot.programmingheroes.supermariojava.Main.main(Main.java:153)\n    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)\n    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n    at java.lang.reflect.Method.invoke(Method.java:606)\n    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)\n","author":{"url":"https://github.com/TeodorKolev","@type":"Person","name":"TeodorKolev"},"datePublished":"2015-12-12T16:36:47.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/1/SuperMarioJava/issues/1"}