Add SWIG_JavaIllegalStateException to changes file
diff --git a/CHANGES.current b/CHANGES.current
index 2027224..6ae17df 100644
--- a/CHANGES.current
+++ b/CHANGES.current
@@ -7,6 +7,10 @@
 Version 4.0.1 (in progress)
 ===========================
 
+2019-08-20: bkotzz
+            [Java] #1616 Add SWIG_JavaIllegalStateException to support throwing
+            java.lang.IllegalStateException from JNI code.
+
 2019-08-19: sjml
             [Lua] #1596 tostring output changes to show the underlying C/C++ pointer.