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The Checker Framework enhances Java's type system to
make it more powerful and useful. This lets software developers
detect and prevent errors in their Java programs.
The Checker Framework includes compiler plug-ins ("checkers")
that find bugs or verify their absence. It also permits you to
write your own compiler plug-ins.
package org.checkerframework.checker.interning.qual;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* This formal parameter annotation indicates that the method searches for the given value, using
* reference equality ({@code ==}).
*
* Within the method, the formal parameter should be compared with {@code ==} rather than with
* {@code equals()}. However, any value may be passed to the method, and the Interning Checker does
* not verify that use of {@code ==} within the method is logically correct.
*
* @see org.checkerframework.checker.interning.InterningChecker
* @checker_framework.manual #interning-checker Interning Checker
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.PARAMETER})
public @interface FindDistinct {}