Import javax.annotation.concurrent.ThreadSafe failed

android studio

Android studio compilation suddenly reported an error and could not find the class file of javax.annotation.concurrent.NotThreadSafe

I checked it and found that there was no package jsr305, and no way to download this package was found on the Internet. Finally, a solution was found in Fresco's Sample code:

    dependencies {
    //找不到javax.annotation.concurrent.NotThreadSafe的类文件 bug
    provided "com.google.code.findbugs:jsr305:1.3.9"
    }

Add in dependencies, and then recompile.

Download the jar file manually:

http://mirrors.ibiblio.org/maven2/com/google/code/findbugs/jsr305/1.3.9/jsr305-1.3.9.jar

android source code

Ajvax.annotation.concueenrt.ThreadSafe is imported into the code of the android system, saying that the import failed,
android.mk or android.bp, add the dependency of jsr305.