Build failed in make/sun/cldr. The Makefile [1] has these lines:

       75 for dir in $(GENSRCDIR); do \
       76 if [ -d $$dir ] ; then \
       77 ( $(CD) $$dir; \
       78 for sdir in $(CLDRGENSRCDIR); do \
       79 if [ -d $$sdir ] ; then \
       80 $(FIND) $$sdir \
       81 -name '*.java' -print >> $(JAVA_SOURCE_LIST) ; \
       82 fi ; \
       83 done \
       84 ); \
       85 fi; \
       86 done \

So it goes into $(GENSRCDIR) and then tries to look for files inside (one of) $(CLDRGENSRCDIR). The latter is defined as

       49 CLDRGENSRCDIR = $(GENSRCDIR)/sun/text/resources/cldr \
       50 $(GENSRCDIR)/sun/util/cldr \
       51 $(GENSRCDIR)/sun/util/resources/cldr

in the same file.

GENSRCDIR can be a relative directory, you cannot cd into it and use it again.

Maybe the cd command is just useless.

[1] http://hg.openjdk.java.net/jdk8/tl/jdk/file/131a683a2ce0/make/sun/cldr/Makefile