{"action":"closed","issue":{"url":"https://api.github.com/repos/DaveChamberlain/casim/issues/35","repository_url":"https://api.github.com/repos/DaveChamberlain/casim","labels_url":"https://api.github.com/repos/DaveChamberlain/casim/issues/35/labels{/name}","comments_url":"https://api.github.com/repos/DaveChamberlain/casim/issues/35/comments","events_url":"https://api.github.com/repos/DaveChamberlain/casim/issues/35/events","html_url":"https://github.com/DaveChamberlain/casim/issues/35","id":316374209,"number":35,"title":"Program crash when memory image loaded that does not exist","user":{"login":"andrea-couto","id":20386870,"avatar_url":"https://avatars0.githubusercontent.com/u/20386870?v=4","gravatar_id":"","url":"https://api.github.com/users/andrea-couto","html_url":"https://github.com/andrea-couto","followers_url":"https://api.github.com/users/andrea-couto/followers","following_url":"https://api.github.com/users/andrea-couto/following{/other_user}","gists_url":"https://api.github.com/users/andrea-couto/gists{/gist_id}","starred_url":"https://api.github.com/users/andrea-couto/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/andrea-couto/subscriptions","organizations_url":"https://api.github.com/users/andrea-couto/orgs","repos_url":"https://api.github.com/users/andrea-couto/repos","events_url":"https://api.github.com/users/andrea-couto/events{/privacy}","received_events_url":"https://api.github.com/users/andrea-couto/received_events","type":"User","site_admin":false},"labels":[{"id":884367083,"url":"https://api.github.com/repos/DaveChamberlain/casim/labels/bug","name":"bug","color":"d73a4a","default":true}],"state":"closed","locked":false,"assignee":{"login":"andrea-couto","id":20386870,"avatar_url":"https://avatars0.githubusercontent.com/u/20386870?v=4","gravatar_id":"","url":"https://api.github.com/users/andrea-couto","html_url":"https://github.com/andrea-couto","followers_url":"https://api.github.com/users/andrea-couto/followers","following_url":"https://api.github.com/users/andrea-couto/following{/other_user}","gists_url":"https://api.github.com/users/andrea-couto/gists{/gist_id}","starred_url":"https://api.github.com/users/andrea-couto/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/andrea-couto/subscriptions","organizations_url":"https://api.github.com/users/andrea-couto/orgs","repos_url":"https://api.github.com/users/andrea-couto/repos","events_url":"https://api.github.com/users/andrea-couto/events{/privacy}","received_events_url":"https://api.github.com/users/andrea-couto/received_events","type":"User","site_admin":false},"assignees":[{"login":"andrea-couto","id":20386870,"avatar_url":"https://avatars0.githubusercontent.com/u/20386870?v=4","gravatar_id":"","url":"https://api.github.com/users/andrea-couto","html_url":"https://github.com/andrea-couto","followers_url":"https://api.github.com/users/andrea-couto/followers","following_url":"https://api.github.com/users/andrea-couto/following{/other_user}","gists_url":"https://api.github.com/users/andrea-couto/gists{/gist_id}","starred_url":"https://api.github.com/users/andrea-couto/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/andrea-couto/subscriptions","organizations_url":"https://api.github.com/users/andrea-couto/orgs","repos_url":"https://api.github.com/users/andrea-couto/repos","events_url":"https://api.github.com/users/andrea-couto/events{/privacy}","received_events_url":"https://api.github.com/users/andrea-couto/received_events","type":"User","site_admin":false}],"milestone":null,"comments":0,"created_at":"2018-04-20T18:50:41Z","updated_at":"2018-05-02T20:09:21Z","closed_at":"2018-05-02T20:09:21Z","author_association":"COLLABORATOR","body":"If a user enters a path to a memory image that does not exist the simulator will crash and the error message reads \n\n\"Exception in thread \"main\" java.lang.NullPointerException\n        at simulator.MemoryTransferGUI.load(MemoryTransferGUI.java:167)\n\tat simulator.Computer.initializeGUIs(Computer.java:271)\n\tat simulator.Computer.startComputer(Computer.java:169)\n\tat simulator.Computer.<init>(Computer.java:156)\n\tat simulator.Computer.main(Computer.java:374)\"\n\nInstead this should be handled gracefully. If a user enters an invalid path perhaps prompt the user to retry."}}
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