=== A.java
public class A {}
=== B.java
public class B extends A {}
=== C.java
public class C extends D<B> {}
=== D.java
public class D<T extends A> {
  public void f(String s) {}
}
=== Test.java
public class Test {
  public void test(C c) {
    c.f(null, null);
  }
}
===

$ javac A.java B.java C.java D.java
$ rm A.class
$ javac -fullversion -sourcepath : -implicit:none Test.java
javac full version "10-ea+37"
...
java.lang.NullPointerException
at jdk.compiler/com.sun.tools.javac.comp.TransTypes.visitSelect(TransTypes.java:862)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:2110)
at jdk.compiler/com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
at jdk.compiler/com.sun.tools.javac.comp.TransTypes.translate(TransTypes.java:499)
at jdk.compiler/com.sun.tools.javac.comp.TransTypes.visitApply(TransTypes.java:672)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1634)
at jdk.compiler/com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
at jdk.compiler/com.sun.tools.javac.comp.TransTypes.translate(TransTypes.java:499)
at jdk.compiler/com.sun.tools.javac.comp.TransTypes.visitExec(TransTypes.java:650)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1452)
at jdk.compiler/com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
at jdk.compiler/com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:70)
at jdk.compiler/com.sun.tools.javac.tree.TreeTranslator.visitBlock(TreeTranslator.java:167)