import { Pair } from "./pair.js";
/**
 * Find all java.
 * @returns All java versions. An array of Pairs, Pair.a is java version, b is java executable.
 * @public
 */
export declare function findAllJava(): Promise<Pair<string, string>[]>;
/**
 * Get the version of a Java executable.
 * @param javaExec - Java executable
 * @returns Version.
 * @public
 */
export declare function getJavaVersion(javaExec: string): Promise<string>;