jaotc --output "invalid filename" truncates the filename on error message.
Please check the output below
==
-sh-4.2$ /scratch/fairoz/JAVA/jdk10/jdk-10-ea+37/bin/jaotc --output abc.s Ideone.class
Exception in thread "main" java.lang.InternalError: bc.s: file not recognized: File truncated
        at jdk.aot/jdk.tools.jaotc.Linker.link(Linker.java:131)
        at jdk.aot/jdk.tools.jaotc.Main.run(Main.java:220)
        at jdk.aot/jdk.tools.jaotc.Main.run(Main.java:101)
        at jdk.aot/jdk.tools.jaotc.Main.main(Main.java:80)
==

Excpected = Exception in thread "main" java.lang.InternalError: abc.s: file not recognized:

Actual = Exception in thread "main" java.lang.InternalError: bc.s: file not recognized:

abc.s is truncated to bc.s