Symptom
We perfromed upgrade JRE to version 7.25. We tried to run Enterprise Services Builder, we have error in popup window with text LAZY_CLASSLOADING_FAILED and buttons CHECK_LOG and CLOSE_BUTTON.
Solution
For temporary resolve this problem without deeper into OS config, We can disable the new version Java in Windows Control Panel -> Java -> “Java” tab page -> “View” button -> unmarked the “Enable” checkbox
Now PI Tools work fine.