{"action":"created","issue":{"url":"https://api.github.com/repos/jacoco/jacoco/issues/52","labels_url":"https://api.github.com/repos/jacoco/jacoco/issues/52/labels{/name}","comments_url":"https://api.github.com/repos/jacoco/jacoco/issues/52/comments","events_url":"https://api.github.com/repos/jacoco/jacoco/issues/52/events","html_url":"https://github.com/jacoco/jacoco/pull/52","id":9049285,"number":52,"title":"Support for parallel test configuration","user":{"login":"vlk32","id":1757534,"avatar_url":"https://avatars.githubusercontent.com/u/1757534?v=3","gravatar_id":"","url":"https://api.github.com/users/vlk32","html_url":"https://github.com/vlk32","followers_url":"https://api.github.com/users/vlk32/followers","following_url":"https://api.github.com/users/vlk32/following{/other_user}","gists_url":"https://api.github.com/users/vlk32/gists{/gist_id}","starred_url":"https://api.github.com/users/vlk32/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vlk32/subscriptions","organizations_url":"https://api.github.com/users/vlk32/orgs","repos_url":"https://api.github.com/users/vlk32/repos","events_url":"https://api.github.com/users/vlk32/events{/privacy}","received_events_url":"https://api.github.com/users/vlk32/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/jacoco/jacoco/labels/enhancement","name":"enhancement","color":"ff9933"}],"state":"closed","locked":false,"assignee":{"login":"Godin","id":138671,"avatar_url":"https://avatars.githubusercontent.com/u/138671?v=3","gravatar_id":"","url":"https://api.github.com/users/Godin","html_url":"https://github.com/Godin","followers_url":"https://api.github.com/users/Godin/followers","following_url":"https://api.github.com/users/Godin/following{/other_user}","gists_url":"https://api.github.com/users/Godin/gists{/gist_id}","starred_url":"https://api.github.com/users/Godin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Godin/subscriptions","organizations_url":"https://api.github.com/users/Godin/orgs","repos_url":"https://api.github.com/users/Godin/repos","events_url":"https://api.github.com/users/Godin/events{/privacy}","received_events_url":"https://api.github.com/users/Godin/received_events","type":"User","site_admin":false},"milestone":{"url":"https://api.github.com/repos/jacoco/jacoco/milestones/3","html_url":"https://github.com/jacoco/jacoco/milestones/0.6.2","labels_url":"https://api.github.com/repos/jacoco/jacoco/milestones/3/labels","id":234189,"number":3,"title":"0.6.2","description":"Offline Instrumentation.","creator":{"login":"Godin","id":138671,"avatar_url":"https://avatars.githubusercontent.com/u/138671?v=3","gravatar_id":"","url":"https://api.github.com/users/Godin","html_url":"https://github.com/Godin","followers_url":"https://api.github.com/users/Godin/followers","following_url":"https://api.github.com/users/Godin/following{/other_user}","gists_url":"https://api.github.com/users/Godin/gists{/gist_id}","starred_url":"https://api.github.com/users/Godin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Godin/subscriptions","organizations_url":"https://api.github.com/users/Godin/orgs","repos_url":"https://api.github.com/users/Godin/repos","events_url":"https://api.github.com/users/Godin/events{/privacy}","received_events_url":"https://api.github.com/users/Godin/received_events","type":"User","site_admin":false},"open_issues":0,"closed_issues":16,"state":"closed","created_at":"2012-12-23T19:04:42Z","updated_at":"2013-02-02T23:22:56Z","due_on":"2013-01-31T08:00:00Z","closed_at":"2013-01-27T01:14:27Z"},"comments":8,"created_at":"2012-12-06T10:52:22Z","updated_at":"2015-09-09T16:08:36Z","closed_at":"2013-01-09T13:04:03Z","pull_request":{"url":"https://api.github.com/repos/jacoco/jacoco/pulls/52","html_url":"https://github.com/jacoco/jacoco/pull/52","diff_url":"https://github.com/jacoco/jacoco/pull/52.diff","patch_url":"https://github.com/jacoco/jacoco/pull/52.patch"},"body":"I've maven-surefire plugin configured with this options :\r\nConcurrency config is parallel='classes', perCoreThreadCount=true, threadCount=4, useUnlimitedThreads=false  \r\n\r\nThis means, that maven runs 4 separate JVM, each JVM has own jacoco-agent and all agents needs to write to the same target/jacoco.exec file.\r\n\r\nAfter all tests are finished, I've malformed target/jacoco.exec file.\r\n```\r\nCaused by: java.io.UTFDataFormatException: malformed input around byte 0\r\n\tat java.io.DataInputStream.readUTF(DataInputStream.java:639)\r\n\tat java.io.DataInputStream.readUTF(DataInputStream.java:547)\r\n\tat org.jacoco.core.data.ExecutionDataReader.readExecutionData(ExecutionDataReader.java:145)\r\n```\r\n\r\nIs there a synchronisation/write locking for target/jacoco.exec ?\r\n\r\nI think that this is continuation of http://sourceforge.net/apps/trac/eclemma/ticket/191\r\n\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/jacoco/jacoco/issues/comments/138958754","html_url":"https://github.com/jacoco/jacoco/pull/52#issuecomment-138958754","issue_url":"https://api.github.com/repos/jacoco/jacoco/issues/52","id":138958754,"user":{"login":"Godin","id":138671,"avatar_url":"https://avatars.githubusercontent.com/u/138671?v=3","gravatar_id":"","url":"https://api.github.com/users/Godin","html_url":"https://github.com/Godin","followers_url":"https://api.github.com/users/Godin/followers","following_url":"https://api.github.com/users/Godin/following{/other_user}","gists_url":"https://api.github.com/users/Godin/gists{/gist_id}","starred_url":"https://api.github.com/users/Godin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Godin/subscriptions","organizations_url":"https://api.github.com/users/Godin/orgs","repos_url":"https://api.github.com/users/Godin/repos","events_url":"https://api.github.com/users/Godin/events{/privacy}","received_events_url":"https://api.github.com/users/Godin/received_events","type":"User","site_admin":false},"created_at":"2015-09-09T16:08:36Z","updated_at":"2015-09-09T16:08:36Z","body":"@Raynevun The best place to get support is our users mailing list - https://groups.google.com/forum/#!forum/jacoco , so could you please switch to it? And describe problem more detailed, at least provide stacktrace of exception, also maybe you know a way to reproduce this issue without need to install TeamCity?\r\n\r\nThanks for your understanding."}}