此时它会应用一项技术，即当前栈替换(On Stack Replacement, OSR)，从而切换到新代码的执行上。
It then USES a technique known as on Stack Replacement (OSR) to switch to the execution of the new code.
切换到 JSP Source 页签，并验证代码（也可以参见图 37 中的屏幕输出
Switch to the JSP Source tab and verify the code (also see the screen output in Figure 37)
单击位于编辑区域左下角的Source选项卡，以切换到Source编辑器中的XML代码视图。
Click on the Source TAB in the lower left corner of the editing area to switch to the XML code view in the Source editor.
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