Question

我检查了我的调试版本中的所有内容，一切正常，但是当我生成Signed Apk时，我收到此错误：

java.lang.NoSuchMethodException: <init> [interface org.simpleframework.xml.core.Contact, interface org.simpleframework.xml.Attribute, class org.simpleframework.xml.stream.Format]
java.lang.RuntimeException: java.lang.NoSuchMethodException: <init> [interface org.simpleframework.xml.core.Contact, interface org.simpleframework.xml.Attribute, class org.simpleframework.xml.stream.Format]
at retrofit2.converter.simplexml.SimpleXmlRequestBodyConverter.convert(SimpleXmlRequestBodyConverter.java:43)
at retrofit2.converter.simplexml.SimpleXmlRequestBodyConverter.convert(SimpleXmlRequestBodyConverter.java:26)
at retrofit2.ParameterHandler$Body.apply(ParameterHandler.java:297)
at retrofit2.ServiceMethod.toRequest(ServiceMethod.java:109)
at retrofit2.OkHttpCall.createRawCall(OkHttpCall.java:178)
at retrofit2.OkHttpCall.execute(OkHttpCall.java:162)
at retrofit2.adapter.rxjava.RxJavaCallAdapterFactory$RequestArbiter.request(RxJavaCallAdapterFactory.java:171)
at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber$1.request(OperatorSubscribeOn.java:109)
at rx.Subscriber.setProducer(Subscriber.java:211)
at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.setProducer(OperatorSubscribeOn.java:105)
at rx.Subscriber.setProducer(Subscriber.java:205)
at retrofit2.adapter.rxjava.RxJavaCallAdapterFactory$CallOnSubscribe.call(RxJavaCallAdapterFactory.java:152)
at retrofit2.adapter.rxjava.RxJavaCallAdapterFactory$CallOnSubscribe.call(RxJavaCallAdapterFactory.java:138)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10256)
at rx.internal.operators.OperatorSubscribeOn$SubscribeOnSubscriber.call(OperatorSubscribeOn.java:100)
at rx.internal.schedulers.CachedThreadScheduler$EventLoopWorker$1.call(CachedThreadScheduler.java:230)
at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:152)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:265)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.NoSuchMethodException: <init> [interface org.simpleframework.xml.core.Contact, interface org.simpleframework.xml.Attribute, class org.simpleframework.xml.stream.Format]
at java.lang.Class.getConstructor(Class.java:531)
at java.lang.Class.getConstructor(Class.java:495)
at org.simpleframework.xml.core.LabelExtractor$LabelBuilder.getConstructor(LabelExtractor.java:426)

如果我做得对，这是ProGuard问题，但我不知道如何解决它。有什么建议吗？

Answer 1

好的，我找到了解决方案，这个代码在Proguard.rules中：

-keep public class org.simpleframework.**{ *; }
-keep class org.simpleframework.xml.**{ *; }
-keep class org.simpleframework.xml.core.**{ *; }
-keep class org.simpleframework.xml.util.**{ *; }

Answer 2

Den's answer上的一点：
它可能足以指定

-keep class org.simpleframework.xml.**{ *; }

没有原来答案的其余3行。

根据ProGuard manual：

**匹配类名的任何部分，可能包含任何数量的包分隔符。例如，**.Test匹配除根包之外的所有包中的所有Test类。或者，com.example.**匹配＆＃34; com.example＆＃34;中的所有类。和在其子包中。

建议的解决方案可能不会涵盖同一组案例，因为它不包括-keep public class org.simpleframework.**{ *; }所涵盖的包中的公共类（高一级）（来自原始答案）。

但是，在提供的堆栈跟踪的第1行中，只有来自org.simpleframework.xml...包的类，而不是来自更高级包的类。

遇到类似的问题：

java.lang.NoSuchMethodException: <init> [
interface org.simpleframework.xml.core.Contact, 
interface org.simpleframework.xml.ElementMap, 
class org.simpleframework.xml.stream.Format]

我通过在ProGuard规则中添加一个行来解决这个问题。

java.lang.NoSuchMethodException：<init>

2 个答案: