Index: lib/Format/UnwrappedLineParser.cpp
===================================================================
--- lib/Format/UnwrappedLineParser.cpp
+++ lib/Format/UnwrappedLineParser.cpp
@@ -1130,6 +1130,10 @@
         nextToken();
         parseBracedList();
         break;
+      } else if (Style.Language == FormatStyle::LK_Java &&
+                 FormatTok->is(Keywords.kw_interface)) {
+        nextToken();
+        break;
       }
       switch (FormatTok->Tok.getObjCKeywordID()) {
       case tok::objc_public:
Index: unittests/Format/FormatTestJava.cpp
===================================================================
--- unittests/Format/FormatTestJava.cpp
+++ unittests/Format/FormatTestJava.cpp
@@ -155,6 +155,15 @@
                "  void doStuff(int theStuff);\n"
                "  void doMoreStuff(int moreStuff);\n"
                "}");
+  verifyFormat("class A {\n"
+               "  public @interface SomeInterface {\n"
+               "    int stuff;\n"
+               "    void doMoreStuff(int moreStuff);\n"
+               "  }\n"
+               "}");
+  verifyFormat("class A {\n"
+               "  public @interface SomeInterface {}\n"
+               "}");
 }
 
 TEST_F(FormatTestJava, AnonymousClasses) {