A DESCRIPTION OF THE PROBLEM :
My ant build worked perfectly until I upgraded from "Runtime Environment 18.9 (build 11+28) 2018-09-25" to "build 11.0.14+9-post-Debian-1deb10u1"

Now I see lots of

   [javac] /home/user/workspace/project/source/net/sf/cglib/transform/DumpFieldsTask.java:1: error: cannot access net.sf.cglib.transform
   [javac] package net.sf.cglib.transform;
   [javac] ^
   [javac] ZIP file can't be opened as a file system because an entry has a '.' or '..' element in its name


errors.

What do I have to do ?

REGRESSION : Last worked in version 11

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
upgrade to newer openjdk11


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
it compiles
ACTUAL -
the error is shown for almost every package

CUSTOMER SUBMITTED WORKAROUND :
roll back to the previous openjdk version

FREQUENCY : always