Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/java/363.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Java NullPointerException Inet6AddressImpl_Java_Android_React Native - Fatal编程技术网

Java NullPointerException Inet6AddressImpl

Java NullPointerException Inet6AddressImpl,java,android,react-native,Java,Android,React Native,我有一个react native应用程序,它有一个SDK,用于自定义桥接到native code。 我用这个,这就是我的例外 我的应用程序在真正的设备和仿真器中使用Android 9+,日志中没有异常或其他内容。 但是当我在8.0或'8.1中运行应用程序时,我的应用程序会抛出一个异常 我的应用程序有androidX依赖项,而第三个软件包没有,所以我不知道这是否是个问题 也可以与cleartexttraffic相关?或在版本之间更改的某些权限 反应本机android清单 <manifest

我有一个
react native
应用程序,它有一个SDK,用于
自定义桥接
native code
。 我用这个,这就是我的例外

我的应用程序在真正的设备和仿真器中使用
Android 9+
,日志中没有异常或其他内容。 但是当我在
8.0
或'8.1中运行应用程序时,我的应用程序会抛出一个异常

我的应用程序有androidX依赖项,而第三个软件包没有,所以我不知道这是否是个问题

也可以与
cleartexttraffic
相关?或在版本之间更改的某些权限

反应本机android清单

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.app"
    android:versionCode="1"
    android:versionName="1.0"
    xmlns:tools="http://schemas.android.com/tools">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE"/>
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />

    <application
      android:name=".MainApplication"
      android:allowBackup="false"
      android:label="@string/app_name"
      android:icon="@mipmap/ic_launcher"
      android:theme="@style/AppTheme"
        android:usesCleartextTraffic="true"
        tools:replace="android:allowBackup">
      <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
        android:windowSoftInputMode="adjustResize">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
     <action android:name="android.intent.action.DOWNLOAD_COMPLETE"/>
        </intent-filter>
      </activity>
      <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
        <service android:name="org.eclipse.paho.android.service.MqttService"></service>

    </application>

</manifest>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.sweeprapitest">
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <application
        android:usesCleartextTraffic="true">
        <service android:name="org.eclipse.paho.android.service.MqttService"></service>
    </application>

</manifest>
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.io.FileDescriptor.isSocket$()' on a null object reference
    at libcore.io.BlockGuardOs.close(BlockGuardOs.java:91)
    at java.net.Inet6AddressImpl.icmpEcho(Inet6AddressImpl.java:270)
    at java.net.Inet6AddressImpl.isReachable(Inet6AddressImpl.java:186)
    at java.net.InetAddress.isReachable(InetAddress.java:478)
    at com.stealthcopter.networktools.ping.PingTools.doJavaPing(PingTools.java:74)
    at com.stealthcopter.networktools.ping.PingTools.doPing(PingTools.java:38)
    at com.stealthcopter.networktools.Ping.doPing(Ping.java:162)
    at com.stealthcopter.networktools.SubnetDevices$SubnetDeviceFinderRunnable.run(SubnetDevices.java:223)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
    at java.lang.Thread.run(Thread.java:764)