java，为什么会出现这些错误？ --maven-compiler-plugin:3.7.0

Question

我正在浏览以下 opendaylight 指南： https://docs.opendaylight.org/en/stable-oxygen/developer-guide/developing-apps-on-the-opendaylight-controller.html#

编译时出现错误：

[ERROR] ...Odl-testProvider.java:[14,17] '{' expected
[ERROR] ...Odl-testProvider.java:[21,15] <identifier> expected
[ERROR] ...Odl-testProvider.java:[21,16] invalid method declaration; return type required

Odl-testProvider.java:

/*
* Copyright © 2017 Copyright(c) Yoyodyne, Inc. and others.  All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.solaroi.impl;

import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Odl-testProvider //line 14
{

private static final Logger LOG = LoggerFactory.getLogger(Odl-testProvider.class);

private final DataBroker dataBroker;

public Odl-testProvider(final DataBroker dataBroker) //line 21
{
    this.dataBroker = dataBroker;
}

/**
 * Method called when the blueprint container is created.
 */
public void init() 
{
    LOG.info("Odl-testProvider Session Initiated");
}

/**
 * Method called when the blueprint container is destroyed.
 */
public void close() 
{
    LOG.info("Odl-testProvider Closed");
}
}

编译器信息：

目标：maven-compiler-plugin:3.7.0:compile(default-compile)
编译器'javac'，源 = 1.8，目标 = 1.8

Answer 1

您必须查看 Java 类名的允许字符。 - 是不允许的。看这里：https://docs.oracle.com/javase/specs/jls/se7/html/jls-3.html#jls-3.8