{"action":"created","issue":{"url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/40","labels_url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/40/labels{/name}","comments_url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/40/comments","events_url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/40/events","html_url":"https://github.com/GoogleCloudPlatform/appengine-mapreduce/issues/40","id":58053821,"number":40,"title":"charts4j charts do not show up - getting ParameterInstantiationException","user":{"login":"StefanieScherzinger","id":7383092,"avatar_url":"https://avatars.githubusercontent.com/u/7383092?v=3","gravatar_id":"","url":"https://api.github.com/users/StefanieScherzinger","html_url":"https://github.com/StefanieScherzinger","followers_url":"https://api.github.com/users/StefanieScherzinger/followers","following_url":"https://api.github.com/users/StefanieScherzinger/following{/other_user}","gists_url":"https://api.github.com/users/StefanieScherzinger/gists{/gist_id}","starred_url":"https://api.github.com/users/StefanieScherzinger/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/StefanieScherzinger/subscriptions","organizations_url":"https://api.github.com/users/StefanieScherzinger/orgs","repos_url":"https://api.github.com/users/StefanieScherzinger/repos","events_url":"https://api.github.com/users/StefanieScherzinger/events{/privacy}","received_events_url":"https://api.github.com/users/StefanieScherzinger/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-02-18T11:01:39Z","updated_at":"2015-02-18T21:55:54Z","closed_at":null,"body":"I am running Java AppEngine MapReduce, latest version as included by Maven.\r\nI am running the ChainedMapReduce Job example from the tutorial.\r\n\r\nThe MapReduce jobs complete, but the visualizing graphs do not show up.\r\nThe browser shows the message\r\n\r\n>>>\r\ncom.googlecode.charts4j.parameters.ParameterManager$ParameterInstantiationException: Full stack trace is available in the server logs. Message: Internal error: Could not instatiate com.googlecode.charts4j.parameters.DataParameter\r\n<<<\r\nThe Eclipse console shows the exception\r\n\r\n>>>\r\n[INFO] SEVERE: Got exception while running command\r\n[INFO] com.googlecode.charts4j.parameters.ParameterManager$ParameterInstantiationException: Internal error: Could not instatiate com.googlecode.charts4j.parameters.DataParameter\r\n[INFO] \tat com.googlecode.charts4j.parameters.ParameterManager.getParameter(ParameterManager.java:600)\r\n[INFO] \tat com.googlecode.charts4j.parameters.ParameterManager.setDataEncoding(ParameterManager.java:429)\r\n[INFO] \tat com.googlecode.charts4j.AbstractGChart.prepareData(AbstractGChart.java:198)\r\n[INFO] \tat com.googlecode.charts4j.AbstractGraphChart.prepareData(AbstractGraphChart.java:107)\r\n[INFO] \tat com.googlecode.charts4j.AbstractAxisChart.prepareData(AbstractAxisChart.java:177)\r\n[INFO] \tat com.googlecode.charts4j.BarChart.prepareData(BarChart.java:119)\r\n[INFO] \tat com.googlecode.charts4j.AbstractGChart.toURLString(AbstractGChart.java:130)\r\n[INFO] \tat com.google.appengine.tools.mapreduce.impl.handlers.StatusHandler.getChartUrl(StatusHandler.java:153)\r\n[INFO] \tat com.google.appengine.tools.mapreduce.impl.handlers.StatusHandler.handleGetJobDetail(StatusHandler.java:223)\r\n[INFO] \tat com.google.appengine.tools.mapreduce.impl.handlers.StatusHandler.handleCommand(StatusHandler.java:92)\r\n[INFO] \tat com.google.appengine.tools.mapreduce.impl.handlers.MapReduceServletImpl.doGet(MapReduceServletImpl.java:86)\r\n[INFO] \tat com.google.appengine.tools.mapreduce.MapReduceServlet.doGet(MapReduceServlet.java:71)\r\n...\r\n<<<\r\n\r\nI added charts4j as a Maven dependency, but that did not resolve the problem.\r\n\r\nStefanie"},"comment":{"url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/comments/74956517","html_url":"https://github.com/GoogleCloudPlatform/appengine-mapreduce/issues/40#issuecomment-74956517","issue_url":"https://api.github.com/repos/GoogleCloudPlatform/appengine-mapreduce/issues/40","id":74956517,"user":{"login":"aozarov","id":8921691,"avatar_url":"https://avatars.githubusercontent.com/u/8921691?v=3","gravatar_id":"","url":"https://api.github.com/users/aozarov","html_url":"https://github.com/aozarov","followers_url":"https://api.github.com/users/aozarov/followers","following_url":"https://api.github.com/users/aozarov/following{/other_user}","gists_url":"https://api.github.com/users/aozarov/gists{/gist_id}","starred_url":"https://api.github.com/users/aozarov/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aozarov/subscriptions","organizations_url":"https://api.github.com/users/aozarov/orgs","repos_url":"https://api.github.com/users/aozarov/repos","events_url":"https://api.github.com/users/aozarov/events{/privacy}","received_events_url":"https://api.github.com/users/aozarov/received_events","type":"User","site_admin":false},"created_at":"2015-02-18T21:55:54Z","updated_at":"2015-02-18T21:55:54Z","body":"Can you verify that you don't have/include older versions of the charts4j library.\r\nLooks like com.googlecode.charts4j.parameters.DataParameter is missing (can't be found by com.googlecode.charts4j.parameters.ParameterManager).\r\n"}}