1/*
2 * @test  /nodynamiccopyright/
3 * @bug 4620794
4 * @summary compiler allows null + null
5 * @author gafter
6 *
7 * @compile/fail/ref=NullAppend.out -XDrawDiagnostics  NullAppend.java
8 */
9
10class NullAppend {{
11    String s = null + null;
12}}
13