我正试图在eclipse03-2020中使用gradle6.6和openjre11.0.2构建一个java项目。在构建使用jrt-fs.jar中的类的项目时，我面临编译问题；e、 g.“太阳网。www.protocol.http.handler“，它位于openjre 11中。

public class Manager extends sun.net.www.protocol.https.Handler{
(package sun.net.www.protocol.https is declared in module java.base, which 
 does not export it)
 1 error
 FAILURE: Build failed with an exception.

* What went wrong:

Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.

以下是my build.gradle：

apply plugin: 'java'
apply plugin: 'application'

allprojects {
      apply plugin: 'java'
      sourceCompatibility = '11.0.2'
      targetCompatibility = JavaVersion.VERSION_11
}

repositories {
      mavenCentral()
}

dependencies {
      compile fileTree(dir: 'lib', include: '*.jar')
      compile group: 'org.hamcrest',            name: 'hamcrest-all',     version: '1.3'
      compile group: 'junit',                   name: 'junit',            version: '4.10'
      compile group: 'jmock',                   name: 'jmock',            version: '1.0.1'
      compile group: 'com.google.code.findbugs',name: 'findbugs',         version: '1.3.9'
      compile group: 'cglib',                   name: 'cglib',            version: '2.1'    
      testCompile group: 'junit',               name: 'junit',            version: '4.10'
 }

另外，如何避免通过gradle构建测试类？