JDK14/Java14源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package jdk.jshell.execution;

import java.util.Map;
import jdk.jshell.spi.ExecutionControl;
import jdk.jshell.spi.ExecutionControlProvider;
import jdk.jshell.spi.ExecutionEnv;

/**
 * A provider of execution engines which run in the same process as JShell.
 *
 * @author Robert Field
 * @since 9
 */
public class LocalExecutionControlProvider implements ExecutionControlProvider{

    /**
     * Create an instance.  An instance can be used to
     * {@linkplain  #generate generate} an {@link ExecutionControl} instance
     * that executes code in the same process.
     */
    public LocalExecutionControlProvider() {
    }

    /**
     * The unique name of this {@code ExecutionControlProvider}.
     *
     * @return "local"
     */
    @Override
    public String name() {
        return "local";
    }

    /**
     * Create and return the default parameter map for
     * {@code LocalExecutionControlProvider}.
     * {@code LocalExecutionControlProvider} has no parameters.
     *
     * @return an empty parameter map
     */
    @Override
    public Map<String,String> defaultParameters() {
        return ExecutionControlProvider.super.defaultParameters();
    }

    /**
     * Create and return a locally executing {@code ExecutionControl} instance.
     *
     * @param env the execution environment, provided by JShell

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