--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make/gensrc/GensrcExceptions.gmk	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,46 @@
+#
+# Copyright (c) 2011, 2014, 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.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# 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.
+#
+
+GENSRC_EXCEPTIONS :=
+
+GENSRC_EXCEPTIONS_DST := $(SUPPORT_OUTPUTDIR)/gensrc/java.base/java/nio
+
+GENSRC_EXCEPTIONS_SRC := $(JDK_TOPDIR)/src/java.base/share/classes/java/nio
+GENSRC_EXCEPTIONS_CMD := $(JDK_TOPDIR)/make/scripts/genExceptions.sh
+
+GENSRC_EXCEPTIONS_SRC_DIRS := . charset channels
+
+$(GENSRC_EXCEPTIONS_DST)/_the.%.marker: $(GENSRC_EXCEPTIONS_SRC)/%/exceptions \
+    $(GENSRC_EXCEPTIONS_CMD)
+	$(call LogInfo, Generating exceptions java.nio $*)
+	$(call MakeDir, $(@D)/$*)
+	SCRIPTS="$(JDK_TOPDIR)/make/scripts" NAWK="$(NAWK)" SH="$(SH)" $(SH) \
+	    $(GENSRC_EXCEPTIONS_CMD) $< $(@D)/$* $(LOG_DEBUG)
+	$(TOUCH) $@
+
+GENSRC_EXCEPTIONS += $(foreach D,$(GENSRC_EXCEPTIONS_SRC_DIRS),$(GENSRC_EXCEPTIONS_DST)/_the.$(D).marker)
+GENSRC_JAVA_BASE += $(GENSRC_EXCEPTIONS)
+
+$(GENSRC_EXCEPTIONS): $(BUILD_TOOLS_JDK)