# HG changeset patch
# Parent  736908fb53445c4da1adb4026034a1ba960ff8a0

diff -r 736908fb5344 src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java
--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java	Thu Sep 07 15:55:55 2017 +0200
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/parser/JavacParser.java	Tue Sep 12 19:09:25 2017 +0200
@@ -813,7 +813,7 @@
             return toP(F.at(pos).VariablePattern(ident(), null));
         } else {
             JCExpression e = term(EXPR | TYPE);
-            if (token.kind == IDENTIFIER) {
+            if (token.kind == IDENTIFIER || (lastmode & EXPR) == 0) {
                 return toP(F.at(pos).VariablePattern(ident(), e));
             } else {
                 return toP(F.at(pos).ConstantPattern(e));
diff -r 736908fb5344 test/tools/javac/patterns/PatternTypeTest3.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/patterns/PatternTypeTest3.java	Tue Sep 12 19:09:25 2017 +0200
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8187427
+ * @summary Check meaningful errors are produced for incomplete type test patterns.
+ * @compile/fail/ref=PatternTypeTest3.out -XDrawDiagnostics PatternTypeTest3.java
+ */
+public class PatternTypeTest3 {
+
+    public static void main(String[] args) {
+        Object o = new String[0];
+
+        if (o __matches Object[]) {
+            System.err.println("It's an array");
+        } else {
+            throw new AssertionError("Broken");
+        }
+    }
+}
diff -r 736908fb5344 test/tools/javac/patterns/PatternTypeTest3.out
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/patterns/PatternTypeTest3.out	Tue Sep 12 19:09:25 2017 +0200
@@ -0,0 +1,2 @@
+PatternTypeTest3.java:35:33: compiler.err.expected: token.identifier
+1 error