The tool uses eclipse the user operation is waiting for Building working to be completed.

Problem Locator:

When using IDE development, learn a new thing, such as language, framework, when errors are temporarily unable to determine whether the new code is wrong or the IDE used wrong;

It is not a code problem to write a simple test.java that does not use the technology, and there are exceptions after running.

Problem solving:

Find Baidu data or blog park and other technical website information, solve it.

Instance:

When spring HelloWorld

Run appears in eclipse the user operation is waiting for Building working to be completed. The results are not always running.

New Java project, after Src Helloworld.java, is still running.

In the blog Park enter eclipse the user operation is waiting for Building working to be completed.

The problem is that Bulid workspace automatically is selected in project.

After canceling this selection. Run Test Helloworld.java OK again, run Spring HelloWorld, OK.

The tool uses eclipse the user operation is waiting for Building working to be completed.