--- /dev/null	2015-11-23 01:27:16.425045507 +0300
+++ new/src/java.base/share/classes/java/lang/invoke/StringConcatException.java	2015-11-26 01:38:40.849627298 +0300
@@ -0,0 +1,26 @@
+package java.lang.invoke;
+
+/**
+ * StringConcatException is thrown by {@link StringConcatFactory} when linkage
+ * invariants are violated.
+ */
+public class StringConcatException extends Exception {
+    private static final long serialVersionUID = 292L + 9L;
+
+    /**
+     * Constructs an exception with a message
+     * @param msg exception message
+     */
+    public StringConcatException(String msg) {
+        super(msg);
+    }
+
+    /**
+     * Constructs an exception with a message and a linked throwable
+     * @param msg   exception message
+     * @param cause throwable cause
+     */
+    public StringConcatException(String msg, Throwable cause) {
+        super(msg, cause);
+    }
+}