src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Resolve.java

@@ -1309,11 +1309,11 @@
                      this.sRet = sRet;
                      result = true;
                  }
  
                  @Override
-                 void skip(JCTree tree) {
+                 protected void skip(JCTree tree) {
                      result = false;
                  }
  
                  @Override
                  public void visitConditional(JCConditional tree) {