在Android上使用Hazelcast会产生随机错误

Question

我正在尝试在Android上使用Hazelcast。我可以包含依赖项，预定义的“Hello World”将很好地显示而不会出错。只要我将此代码放入我的Activity（即开始使用Hazelcast），它就会给我一个错误：

代码：

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Config cfg = new Config();
        HazelcastInstance instance = Hazelcast.newHazelcastInstance(cfg);
    }

堆栈跟踪

I/art: Rejecting re-init on previously-failed class java.lang.Class<android.support.v4.view.ViewCompat$OnUnhandledKeyEventListenerWrapper>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;
           at void android.support.v4.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2340)
           at void android.support.v7.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62)
           at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2)
           at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430)
           at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:652)
           at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:794)
           at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:734)
           at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:865)
           at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:828)
           at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:525)
           at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:427)
I/art:     at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:378)
           at android.view.ViewGroup android.support.v7.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:605)
           at void android.support.v7.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:516)
           at void android.support.v7.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:464)
           at void android.support.v7.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
           at void nl.quintor.justanotherboardgame.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:15)
           at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6955)
           at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1126)
           at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2927)
           at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:3045)
           at void android.app.ActivityThread.-wrap14(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
           at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1642)
           at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102)
           at void android.os.Looper.loop() (Looper.java:154)
           at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6776)
           at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2)
           at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:1496)
           at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:1386)
       Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.View$OnUnhandledKeyEventListener" on path: DexPathList[[zip file "/data/app/nl.quintor.justanotherboardgame-2/base.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_dependencies_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_0_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_1_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_2_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_3_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_4_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_5_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_6_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_7_apk.apk", zip file "/data/app/nl.quintor.justanotherboardgame-2/split_lib_slice_8_apk.apk", 
           at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56)
           at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String, boolean) (ClassLoader.java:380)
           at java.lang.Class java.lang.ClassLoader.loadClass(java.lang.String) (ClassLoader.java:312)
           at void android.support.v4.view.ViewCompat.setBackground(android.view.View, android.graphics.drawable.Drawable) (ViewCompat.java:2340)
           at void android.support.v7.widget.ActionBarContainer.<init>(android.content.Context, android.util.AttributeSet) (ActionBarContainer.java:62)
           at java.lang.Object java.lang.reflect.Constructor.newInstance0!(java.lang.Object[]) (Constructor.java:-2)
           at java.lang.Object java.lang.reflect.Constructor.newInstance(java.lang.Object[]) (Constructor.java:430)
           at android.view.View android.view.LayoutInflater.createView(java.lang.String, java.lang.String, android.util.AttributeSet) (LayoutInflater.java:652)
           at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:794)
           at android.view.View android.view.LayoutInflater.createViewFromTag(android.view.View, java.lang.String, android.content.Context, android.util.AttributeSet) (LayoutInflater.java:734)
           at void android.view.LayoutInflater.rInflate(org.xmlpull.v1.XmlPullParser, android.view.View, android.content.Context, android.util.AttributeSet, boolean) (LayoutInflater.java:865)
           at void android.view.LayoutInflater.rInflateChildren(org.xmlpull.v1.XmlPullParser, android.view.View, android.util.AttributeSet, boolean) (LayoutInflater.java:828)
           at android.view.View android.view.LayoutInflater.inflate(org.xmlpull.v1.XmlPullParser, android.view.ViewGroup, boolean) (LayoutInflater.java:525)
           at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup, boolean) (LayoutInflater.java:427)
           at android.view.View android.view.LayoutInflater.inflate(int, android.view.ViewGroup) (LayoutInflater.java:378)
           at android.view.ViewGroup android.support.v7.app.AppCompatDelegateImpl.createSubDecor() (AppCompatDelegateImpl.java:605)
           at void android.support.v7.app.AppCompatDelegateImpl.ensureSubDecor() (AppCompatDelegateImpl.java:516)
           at void android.support.v7.app.AppCompatDelegateImpl.setContentView(int) (AppCompatDelegateImpl.java:464)
           at void android.support.v7.app.AppCompatActivity.setContentView(int) (AppCompatActivity.java:140)
           at void nl.quintor.justanotherboardgame.MainActivity.onCreate(android.os.Bundle) (MainActivity.java:15)
           at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6955)
           at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1126)
           at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2927)
           at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:3045)
           at void android.app.ActivityThread.-wrap14(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1)
           at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1642)
           at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:102)
           at void android.os.Looper.loop() (Looper.java:154)
           at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6776)
           at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2)
           at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:1496)
           at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:1386)

似乎找不到一些始终有效且属于Android库的类。当我试图找到代码时，我可以找到它。当我删除Hazelcast的实例创建时，也没有问题..

任何人都知道这个问题可能是什么？

提前致谢！

Answer 1

这是由于与更改为版本28的android支持库不兼容引起的。

我的情况下，我解决了问题，方法是从

implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'

到

implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'。

所以请尝试使用以前的版本。

更改此项目后，我的项目构建成功。希望这对您也有帮助。