FULL PRODUCT VERSION :
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+132)
Java HotSpot(TM) 64-Bit Server VM (build 9-ea+132, mixed mode)

A DESCRIPTION OF THE PROBLEM :
When the name of a generated method contains the NULL character (U+0000) or a Latin-1 supplement character (U+0080 - U+00FF), a java.lang.NoSuchMethodException is thrown when trying to call that method.

REGRESSION. Last worked in version 8u102

ADDITIONAL REGRESSION INFORMATION:
java version "1.8.0_102"
Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Execute in jjs:

jjs> ({get "\0"(){}})["\0"]
jdk.nashorn.internal.lookup.MethodHandleFactory$LookupException: java.lang.NoSuchMethodException: no such method: jdk.nashorn.internal.scripts.Script$Recompilation$2$2$\^shell\_/585324508.get (Object)Object/invokeStatic

jjs> ({get "\x80"(){}})["\x80"]
jdk.nashorn.internal.lookup.MethodHandleFactory$LookupException: java.lang.NoSuchMethodException: no such method: jdk.nashorn.internal.scripts.Script$Recompilation$5$2$\^shell\_/1866875501.get €(Object)Object/invokeStatic

jjs> ({get "\xff"(){}})["\xff"]
jdk.nashorn.internal.lookup.MethodHandleFactory$LookupException: java.lang.NoSuchMethodException: no such method: jdk.nashorn.internal.scripts.Script$Recompilation$8$2$\^shell\_/1910438136.get ÿ(Object)Object/invokeStatic

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
No NoSuchMethodExceptions are thrown.
ACTUAL -
NoSuchMethodExceptions are thrown.

REPRODUCIBILITY :
This bug can be reproduced always.