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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.

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package org.checkerframework.dataflow.cfg.block;

import java.util.Map;
import java.util.Set;

import javax.lang.model.type.TypeMirror;

import org.checkerframework.dataflow.cfg.node.Node;

/**
 * Represents a basic block that contains exactly one {@link Node} which can
 * throw an exception. This block has exactly one non-exceptional successor, and
 * one or more exceptional successors.
 *
 * 
 *
 * The following invariant holds.
 *
 * 
 * getNode().getBlock() == this
 * 
 *
 * @author Stefan Heule
 *
 */
public interface ExceptionBlock extends SingleSuccessorBlock {

    /**
     * @return the node of this block
     */
    Node getNode();

    /**
     * @return the list of exceptional successor blocks as an unmodifiable map
     */
    Map> getExceptionalSuccessors();

}