NoSuchMethodError：com.google.common.base.Stopwatch.createStarted（）Lcom / google / common / base / Stopwatch

Question

我的应用抛出NoSuchMethodError: com.google.common.base.Stopwatch.createStarted()Lcom/google/common/base/Stopwatch错误。不知道为什么，因为我检查了16.0.1确实包含该类。根据我的研究，看来这是一个错误吗？

我也有此代码供参考，尽管我认为这不是问题：

    FirewallRule rule = new PeriodicFirewallCounterRule(60, TimeUnit.SECONDS, new IpAddressCountingPolicy());
    ((PeriodicFirewallCounterRule)rule).addHandler(new RateLimitationHandler(new UniqueLimitPolicy(10)));
    FirewallFilter firewallFiler = new FirewallFilter(getContext(), list(rule));
    firewallFiler.setNext(ma);

我的应用程序正在使用Restlet APISpark：

  <dependency>
      <groupId>org.restlet.gae</groupId>
      <artifactId>org.restlet.ext.apispark</artifactId>
      <version>${version.restlet}</version>
  </dependency>

运行并访问应用程序的REST api时，它将引发以下错误：

[INFO] Caused by: java.lang.NoSuchMethodError: com.google.common.base.Stopwatch.createStarted()Lcom/google/common/base/Stopwatch;
[INFO]  at org.restlet.ext.apispark.internal.firewall.rule.counter.PeriodicCounter.<init>(PeriodicCounter.java:65)
[INFO]  at org.restlet.ext.apispark.internal.firewall.rule.PeriodicFirewallCounterRule$1.load(PeriodicFirewallCounterRule.java:86)
[INFO]  at org.restlet.ext.apispark.internal.firewall.rule.PeriodicFirewallCounterRule$1.load(PeriodicFirewallCounterRule.java:84)
[INFO]  at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3599)
[INFO]  at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2379)
[INFO]  at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2342)
[INFO]  at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2257)
[INFO]  ... 74 more

Answer 1

使用扩展名时org.restlet.ext.apispark，检索到的番石榴依赖项具有版本16.0.1。

Downloading: http://maven.restlet.com/com/google/guava/guava/16.0.1/guava-16.0.1.jar
Downloading: http://repo.maven.apache.org/maven2/com/google/guava/guava/16.0.1/guava-16.0.1.jar
Downloaded: http://repo.maven.apache.org/maven2/com/google/guava/guava/16.0.1/guava-16.0.1.jar (2176 KB at 711.7 KB/sec)

它包含在使用以下maven配置从头创建的应用程序中：

<project (...)>
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.restlet</groupId>
    <artifactId>restlet-apispark-firewall</artifactId>
    <name>${project.artifactId}</name>
    <packaging>jar</packaging>
    <version>1.0.0-snapshot</version>

    <properties>
        <java-version>1.7</java-version>
        <restlet-version>2.3.1</restlet-version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.restlet.jse</groupId>
            <artifactId>org.restlet</artifactId>
            <version>${restlet-version}</version>
        </dependency>

        <dependency>
            <groupId>org.restlet.jse</groupId>
            <artifactId>org.restlet.ext.apispark</artifactId>
            <version>${restlet-version}</version>
        </dependency>
    </dependencies>

    <repositories>
        <repository>
            <id>maven-restlet</id>
            <name>Public online Restlet repository</name>
            <url>http://maven.restlet.com</url>
        </repository>
    </repositories>
</project>

我集成了您的代码，它对我而言很好用。没有异常被抛出…

我认为旧版本的Guava来自另一个依赖项。如果使用Maven，则应确定此旧番石榴版本的来源，并在相应的依赖项中添加排除项。我希望它能解决您的问题…

希望对您有帮助，蒂埃里