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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.qualframework.base;
/**
* {@link DefaultQualifiedTypeFactory} component for performing subtyping
* checks between {@link QualifiedTypeMirror}s.
*/
public interface TypeHierarchy {
/** Checks if subtype
is a subtype of supertype
. */
boolean isSubtype(QualifiedTypeMirror subtype, QualifiedTypeMirror supertype);
}