Invalid font name error while validate pdfa

I got a invalid font name error when I am trying to validate pdf format,see my screenshot below
image.png (22.3 KB)

and here is my source code
image.png (22.2 KB)

my source file
js_convert.pdf (7.0 KB)

@smartlee

We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): PDFJAVA-43528

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