Entering special JCR internal characters in jcrName fields throws exception. This bug affects all apps and all node types. It can happen in every dialog/app where a jcrName field is included.

Steps to reproduce

1. open pages app
2. create a new page
3. enter name beginning with "{}" or name containing "|" (pipe)
4. leave the field or click next

Result

• Exceptions are thrown (2 different ones for {} and |)

This is just one way. All the same with assets, on folders, creating items, renaming items,...

Expected behaviour

• value of jcrName field is checked for invalid inputs
• should not throw an exception
• display a validation error
• display a hint which characters are allowed

I propose to disallow any [] {} | : in JCR names because the can have a special meaning in some cases.

Dev note

having UTF8 support enabled is necessary to reproduce the issue