在Android coreLibraryDesugaring中使用ConcurrentHashMap::newKeySet
在Android coreLibraryDesugaring中使用ConcurrentHashMap::newKeySet
提问于 2020-10-24 04:30:27
我正在尝试使用AGP中新的去糖化功能，但是在我的应用程序中使用ConcurrentHashMap.newKeySet()时，我得到了以下错误：
10-23 21:17:49.471 5023-5023/uk.org.mattford.scoutlink E/AndroidRuntime: FATAL EXCEPTION: main
Process: uk.org.mattford.scoutlink, PID: 5023
java.lang.NoSuchMethodError: No static method newKeySet()Lj$/util/concurrent/ConcurrentHashMap$KeySetView; in class Lj$/util/concurrent/ConcurrentHashMap; or its super classes (declaration of 'j$.util.concurrent.ConcurrentHashMap' appears in /data/app/uk.org.mattford.scoutlink-1/base.apk:classes3.dex)
at org.pircbotx.hooks.managers.ThreadedListenerManager.<init>(ThreadedListenerManager.java:49)
at org.pircbotx.Configuration$Builder.getListenerManager(Configuration.java:884)
at org.pircbotx.Configuration$Builder.addListener(Configuration.java:726)
at uk.org.mattford.scoutlink.irc.IRCService.connect(IRCService.java:143)
at uk.org.mattford.scoutlink.irc.IRCService.onStartCommand(IRCService.java:67)
at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2864)
at android.app.ActivityThread.access$2100(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1376)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5221)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)我的顶级build.gradle中包含以下内容
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:4.1.0'
classpath 'com.google.gms:google-services:4.3.4'
classpath 'com.google.firebase:firebase-crashlytics-gradle:2.3.0'
}
}
allprojects {
repositories {
google()
jcenter()
maven {
url 'https://oss.sonatype.org/content/repositories/snapshots'
}
}
}在我的模块build-gradle中
apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'
android {
compileSdkVersion 29
buildToolsVersion '29.0.3'
defaultConfig {
applicationId "uk.org.mattford.scoutlink"
minSdkVersion 16
targetSdkVersion 29
multiDexEnabled true
}
buildTypes {
release {}
}
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/license.txt'
exclude 'META-INF/NOTICE'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/notice.txt'
exclude 'META-INF/ASL2.0'
}
compileOptions {
coreLibraryDesugaringEnabled true
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
productFlavors {
}
buildFeatures {
viewBinding = true
}
}
dependencies {
implementation 'org.slf4j:slf4j-android:1.7.30'
implementation 'org.pircbotx:pircbotx:2.3-SNAPSHOT'
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.firebase:firebase-analytics:17.6.0'
implementation 'com.google.firebase:firebase-crashlytics:17.2.2'
implementation 'com.google.android.material:material:1.2.1'
implementation "androidx.room:room-runtime:2.2.5"
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'androidx.recyclerview:recyclerview:1.1.0'
implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
implementation "androidx.lifecycle:lifecycle-viewmodel:2.2.0"
annotationProcessor "androidx.room:room-compiler:2.2.5"
implementation 'androidx.multidex:multidex:2.0.1'
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.0.10'
}看着APK分析器。我可以看到j$.util.concurrent.ConcurrentHashMap是在classes3.dex中定义的，但是没有包含newKeySet方法。然而，classes4.dex中也定义了j$.util.concurrent.ConcurrentHashMap，并且确实有这个方法！
我正在尝试解决的ConcurrentHashMap.newKeySet调用是在pircbotx依赖中。但是，我在应用程序的onCreate方法中调用了此方法，这也会使应用程序崩溃。
提前感谢您的帮助。我已经这样做了好几个小时了，但都没有结果。
回答 1
Stack Overflow用户
回答已采纳
发布于 2020-10-26 20:55:32
事实证明，这是D8中的一个“错误”，尽管在文档(https://developer.android.com/studio/write/java8-support-table)中列出了以下3种方法作为支持，但它们目前实际上并不受支持。
这已经被提出了一个功能请求，但根据D8团队的说法，他们不太可能在本季度得到关注。(在这里全面讨论这个问题：https://issuetracker.google.com/171666278)
public ConcurrentHashMap.KeySetView keySet(Object mappedValue)
public static ConcurrentHashMap.KeySetView newKeySet()
public static ConcurrentHashMap.KeySetView newKeySet(int initialCapacity)页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/64506917
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