6608214: Exception throw while analysing a file with error

Summary: bad error-recovery after bad type-variable bound is detected
Reviewed-by: jjg

src/share/classes/com/sun/tools/javac/comp/Attr.java

@@ -2514,6 +2514,7 @@ public class Attr extends JCTree.Visitor {
                     log.error(tree.bounds.tail.head.pos(),
                               "type.var.may.not.be.followed.by.other.bounds");
                     tree.bounds = List.of(tree.bounds.head);
+                    a.bound = bs.head;
                 }
             } else {
                 // if first bound was a class or interface, accept only interfaces

test/tools/javac/api/6608214/T6608214.java

+/*
+ * Copyright 2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug     6608214
+ * @summary Exception throw while analysing a file with error
+ * @author  Maurizio Cimadamore
+ */
+
+import com.sun.source.util.JavacTask;
+import java.io.IOException;
+import java.net.URI;
+import java.util.Arrays;
+import java.util.List;
+import javax.tools.JavaCompiler;
+import javax.tools.JavaFileObject;
+import javax.tools.SimpleJavaFileObject;
+import javax.tools.ToolProvider;
+import static javax.tools.JavaFileObject.Kind;
+
+public class T6608214 {
+    public static void main(String[] args) throws IOException {
+        JavaFileObject sfo = new SimpleJavaFileObject(URI.create(""),Kind.SOURCE) {
+            public CharSequence getCharContent(boolean ignoreEncodingErrors) {
+                return "class Test<S> { <T extends S & Runnable> void test(){}}";
+            }
+        };
+        List<? extends JavaFileObject> files = Arrays.asList(sfo);
+        String bootPath = System.getProperty("sun.boot.class.path");
+        List<String> opts = Arrays.asList("-bootclasspath",  bootPath, "-Xjcov");
+        JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
+        JavacTask ct = (JavacTask)tool.getTask(null, null, null,opts,null,files);
+        ct.analyze();
+    }
+}