导入NotNull或Nullable且Android Studio无法编译

Question

当我将@NotNull或@Nullable批注添加到参数时，Android Studio会自动帮助我添加/lib/annotations.jar并导入

import org.jetbrains.annotations.NotNull
import org.jetbrains.annotations.Nullable;

但是之后，该项目将无法编译。如果我也删除了注释但保留了import语句，则该项目仍然无法编译。 但是，
如果我删除了NotNull和Nullable的import语句，则项目编译 正常 ！

Android Studio出现一般错误：

Gradle: 
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':Bugtester:compileDebug'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

gradlew compileDebug从cmd 运行会给出一些提示：

:Bugtester:compileDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':Bugtester:compileDebug'.
> Cannot find System Java Compiler. Ensure that you have installed a JDK (not just a JRE) and configured your JAVA_HOME system variable to point to the according directory.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

因此，我检查了环境变量，并将它们设置为：

JAVA_HOME=C:\Program Files (x86)\Java\jre7
JDK_HOME=C:\Program Files\Java\jdk1.7.0_21\

有人对此有任何想法吗？（我是Java和android编程的新手）

Answer 1

我想，正确的方法是在build.gradle依赖项中使用MavenCentral存储库中的原始JetBrains库（此示例中的最新可用版本）：

dependencies {
    implementation 'com.intellij:annotations:+@jar'
    ...
}