Backport of Java 9 (JEP 266) CompletableFuture API for Android Studio 3.x D8 / desugar toolchain, forked from https://github.com/stefan-zobel/streamsupport
Home Page: https://retrostreams.github.io/android-retrofuture/
Is this problem will be fix ?
problem output log :
#66: Reflection blacklist Ljava/util/HashMap$EntrySet;->this$0 use(s):
Ljava9/util/HMSpliterators;-><clinit>()V
#67: Reflection blacklist Ljava/util/HashMap$KeySet;->this$0 use(s):
Ljava9/util/HMSpliterators;-><clinit>()V
#68: Reflection blacklist Ljava/util/HashMap$Values;->this$0 use(s):
Ljava9/util/HMSpliterators;-><clinit>()VThe JDK Version in the app is being used is JAVA_11.
Kindly help.
Process: com.app.staging, PID: 21740
java.lang.RuntimeException: Unable to instantiate application com.example.Application: java.lang.ClassNotFoundException: Didn't find class com.example.Application on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/data/app/com.app.staging-1/base.apk"],nativeLibraryDirectories=[/data/app/com.app.staging-1/lib/arm, /data/app/com.app.staging-1/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:581)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4817)
at android.app.ActivityThread.access$1700(ActivityThread.java:166)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1475)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5619)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:853)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:737)
Caused by: java.lang.ClassNotFoundException: Didn't find class com.example.Application on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/data/app/com.app.staging-1/base.apk"],nativeLibraryDirectories=[/data/app/com.app.staging-1/lib/arm, /data/app/com.app.staging-1/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newApplication(Instrumentation.java:988)
at android.app.LoadedApk.makeApplication(LoadedApk.java:576)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4817)
at android.app.ActivityThread.access$1700(ActivityThread.java:166)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1475)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5619)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:853)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:737)
Suppressed: java.lang.NoClassDefFoundError: com.example.Application
at dalvik.system.DexFile.defineClassNative(Native Method)
at dalvik.system.DexFile.defineClass(DexFile.java:226)
at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219)
at dalvik.system.DexPathList.findClass(DexPathList.java:338)
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
... 13 more
Suppressed: java.lang.ClassNotFoundException: com.example.Application
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 12 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
Not sure if this really is an issue or just me not understanding what this project is for...
So I wanna use CompletableFuture class in an App that still wants to support older devices, that's what I thought this library would allow me to do. However I get this when I try to build my App.
Caused by: com.android.tools.r8.utils.AbortException: Error: Private interface methods are only supported starting with Android N (--min-api 24): boolean java9.util.function.LongPredicate.lambda$and$20(java9.util.function.LongPredicate, long)
After replacing jdk8 CompletableFuture with the version from android8-retrofuture`, proguard stops during release build.
For now I can workaround it by suppressing all proguard warnings as follows.
-dontwarn java9.**
It'd be great if there is some documentation on proper settings (or bundle proguard rules).
Environment: android gradle v3.1.2, minSDK 19, targetSDK 27
Excerpt of the warnings proguard gave:
Warning: java9.util.ArrayDequeSpliterator: can't find referenced class sun.misc.Unsafe
...
Warning: java9.util.concurrent.CompletableFuture: can't find referenced class sun.misc.Unsafe
...
Note: java9.util.ArraysArrayListSpliterator: can't find dynamically referenced class java.util.Arrays$ArrayList
Note: java9.util.HMSpliterators: can't find dynamically referenced class java.util.HashMap$Values
...
Note: java9.util.HMSpliterators$HashMapSpliterator accesses a declared field 'key' dynamically
Maybe this is program field 'java9.util.KeyValueHolder { java.lang.Object key; }'
Maybe this is library field 'android.R$attr { int key; }'
...
Note: java9.util.HMSpliterators$HashMapSpliterator accesses a declared field 'value' dynamically
Maybe this is program field 'java9.util.KeyValueHolder { java.lang.Object value; }'
Maybe this is program field 'java9.util.Optional { java.lang.Object value; }'
...
Note: java9.util.HMSpliterators accesses a declared field 'this$0' dynamically
Maybe this is program field 'android.arch.core.internal.SafeIterableMap$IteratorWithAdditions { android.arch.core.internal.SafeIterableMap this$0; }'
...
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