Eclipse 中双击变量不高亮 解决

参考自 stackoverflow

Two "solutions" that at least get the highlight stuck on a new item (!!):

1. As @Subas Raj mentioned, defocus and refocus the window - when you come back, your current position is occurrence-highlighted. Either hit AltTab twice, or use your mouse to click/focus some other window, then back.
2. As @Leo and @Gorky mentions, hit AltShiftO twice. This is the shortcut for toggling highlight occurrences, and when you turn it back on, your current position is occurrence-highlighted.

And finally, a third ACTUAL solution: Replace one specific jar with a patched one:https://bugs.eclipse.org/bugs/show_bug.cgi?id=398509#c60

说是双击变量后，不高亮， 但是当窗口的focus变化了，就会高亮了，这是Eclipse的一个Bug， 解决方法就是将eclipse/plugins/ 目录下的 org.eclipse.e4.ui.workbench_0.11.0.v20130125-100758.jar 替换下。 

亲测可行， 就是反应略卡。