org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z -> [Help 1]

該問題是windows在給定的路徑的存取權限解檢查導致的錯誤，解決辦法：

修改 org.apache.hadoop.io.nativeio.NativeIO.java，做的修改如下：

    public static boolean access(String path, AccessRight desiredAccess)        throws IOException {      //return access0(path, desiredAccess.accessRight());  // comment by yh.zeng 2016-07-24        return true;  // add by yh.zeng 2016-07-24    }

  報錯資訊如下：

 

[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2:java (default-cli) on project HadoopTest: An exception occured while executing the Java class. null: InvocationTargetException : org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z -> [Help 1]org.apache.maven.lifecycle.LifecycleExecutionException : Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2:java (default-cli) on project HadoopTest: An exception occured while executing the Java class. null     at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)     at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)     at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)     at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)     at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)     at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)     at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120)     at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:355 )     at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155 )     at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584 )     at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:216 )     at org.apache.maven.cli.MavenCli.main(MavenCli.java:160 )     at sun.reflect.NativeMethodAccessorImpl.invoke0( Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)     at java.lang.reflect.Method.invoke(Unknown Source)     at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)     at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)     at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)     at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)     at org.codehaus.classworlds.Launcher.main(Launcher.java:47 )Caused by: org.apache.maven.plugin.MojoExecutionException: An exception occured while executing the Java class. null     at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:346 )     at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132)     at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)     ... 20 moreCaused by: java.lang.reflect.InvocationTargetException     at sun.reflect.NativeMethodAccessorImpl.invoke0( Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)     at java.lang.reflect.Method.invoke(Unknown Source)     at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:291 )     at java.lang.Thread.run(Unknown Source)Caused by: java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z     at org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Native Method)     at org.apache.hadoop.io.nativeio.NativeIO$Windows.access(NativeIO.java:570)     at org.apache.hadoop.fs.FileUtil.canRead(FileUtil.java:977 )     at org.apache.hadoop.util.DiskChecker.checkAccessByFileMethods(DiskChecker.java:173)     at org.apache.hadoop.util.DiskChecker.checkDirAccess(DiskChecker.java:160)     at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:94 )     at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.confChanged(LocalDirAllocator.java:285)     at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathForWrite(LocalDirAllocator.java:344)     at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:150)     at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:131)     at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:115)     at org.apache.hadoop.mapred.LocalDistributedCacheManager.setup(LocalDistributedCacheManager.java:131)     at org.apache.hadoop.mapred.LocalJobRunner$Job.<init>(LocalJobRunner.java:163)     at org.apache.hadoop.mapred.LocalJobRunner.submitJob(LocalJobRunner.java:731)     at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:432)     at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1285 )     at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1282 )     at java.security.AccessController.doPrivileged( Native Method)     at javax.security.auth.Subject.doAs(Unknown Source)     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614)     at org.apache.hadoop.mapreduce.Job.submit(Job.java:1282 )     at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:562 )     at org.apache.hadoop.mapred.JobClient$1.run(JobClient.java:557 )     at java.security.AccessController.doPrivileged( Native Method)     at javax.security.auth.Subject.doAs(Unknown Source)     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614)     at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:557)     at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:548 )     at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:833 )     at com.codex.hadoop.WordCount.main( WordCount.java:84 )     ... 6 more[ERROR][ERROR]