ADDITIONAL SYSTEM INFORMATION :
Windows 10

A DESCRIPTION OF THE PROBLEM :
In version 9 some characters was not accepted by JShell by using the standard Czech keyboard. At current version it is repaired, however the same characters are not accepted by using the Czech QWERTY keyboard used by many programmers. Especially there are the { } and | characters, which are on the same keys as at the US keyboard, only you should press it together with AltGr+Shift.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Set the keyboard Czech QWERTY and run the JShell.exe. Then try to enter any of the { } | characters or copy the code:
void mtd() {}

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The enterred characters are written.
ACTUAL -
The mentioned characters are ignored. The insertion from clipboard does not work. Only the entering through Alt+code from the numerical keyboard works or changing the set keyboard.

---------- BEGIN SOURCE ----------
void mtd() {}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Switch to another keyboard or write the character by entering through Alt+code from the numerical keyboard. By copyinig and pasting the code only the switch the keyboard helps.

FREQUENCY : always