Eclipse 開唔到，stuck左喺loading

https://www.ibm.com/developerworks/community/blogs/f37f6f3c-d39f-49c9-884b-a1665b7e2ca3/entry/tutorial_how_to_investigate_startup_issues_of_eclipse_based_products_where_the_java_process_hangs_during_the_start_up?lang=en

問題：
Eclipse開o既時候停左喺度唔郁，但冇error
睇workspace入面個.log file會見到話timeout deadlock之類：

!MESSAGE While loading class "org.eclipse.jdt.internal.launching.JREContainerInitializer", thread "Thread[main,6,main]" timed out waiting (5034ms) for thread "Thread[org.eclipse.jdt.internal.ui.text.JavaReconciler,1,main]" to finish starting bundle "org.eclipse.jdt.launching_3.6.1.v20111006_r372 [366]". To avoid deadlock, thread "Thread[main,6,main]" is proceeding but "org.eclipse.jdt.internal.launching.JREContainerInitializer" may not be fully initialized.

我自己經驗，冇跟足條link
1. -clean 唔work
2. restart 部機唔work
3. -debug +.options file 無喱頭成功開到eclipse，但啲野爛晒。閂左佢重開，problem solved