After JDK-8191842:
http://hg.openjdk.java.net/jdk/jdk/rev/a587f95313f1

Building of test/langtools/jdk/jshell/VariablesTest.java may fail with:
.../test/langtools/tools/lib/toolbox/JavacTask.java:45: error: package com.sun.tools.javac.api is not visible
import com.sun.tools.javac.api.JavacTaskImpl;
                          ^
  (package com.sun.tools.javac.api is declared in module jdk.compiler, which does not export it to the unnamed module)
.../test/langtools/tools/lib/toolbox/JavacTask.java:46: error: package com.sun.tools.javac.api is not visible
import com.sun.tools.javac.api.JavacTool;
                          ^
  (package com.sun.tools.javac.api is declared in module jdk.compiler, which does not export it to the unnamed module)
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
2 errors