src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/regexp/joni/ScanEnvironment.java

@@ -60,10 +60,13 @@
         numMem = 0;
         memNodes = null;
     }
 
     public int addMemEntry() {
+        if (numMem >= Config.MAX_CAPTURE_GROUP_NUM) {
+            throw new InternalException(ErrorMessages.ERR_TOO_MANY_CAPTURE_GROUPS);
+        }
         if (numMem++ == 0) {
             memNodes = new Node[SCANENV_MEMNODES_SIZE];
         } else if (numMem >= memNodes.length) {
             final Node[]tmp = new Node[memNodes.length << 1];
             System.arraycopy(memNodes, 0, tmp, 0, memNodes.length);