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The E verifier runs only at load time, so it causes no performance degradation. But it checks every instruction in the Java/E program to see if any of the security-dangerous features of Java are used. A program that passes through the E Verifier is trustworthy; it can only use capabilities the user grants. With the E Verifier replacing the Security Shield upon which the user once relied, we find that the user can now work with Java programs that are powerful even though the user wouldn't necessarily trust the developer with the keys to his gold vault.  

And Lo! We have transformed the user, once terrified and frustrated, into the Happy User, the satisfied customer whom all developers seek to empower.