[TESTBUG] Tests fail to compile : package jdk.test.lib does not exist

Here is the log from the CI pipeline

'C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-11.0.18+1-61\\src.full\\open\\test\\jdk\\sun\\security\\krb5\\auto\\tools\\KinitConfPlusProps.java'
----------direct:(319/32416)*----------
C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-11.0.18+1-61\\src.full\\open\\test\\jdk\\sun\\security\\krb5\\auto\\KDC.java:24: error: package jdk.test.lib does not exist
import jdk.test.lib.Platform;

....

C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-11.0.18+1-61\\src.full\\open\\test\\jdk\\sun\\security\\krb5\\auto\\KDC.java:1820: error: cannot find symbol
                    Platform.sharedLibraryPathVariableName(), nativePath + "/lib");
                    ^
  symbol: variable Platform
  location: class Heimdal
C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-11.0.18+1-61\\src.full\\open\\test\\jdk\\sun\\security\\krb5\\auto\\KDC.java:1912: error: cannot find symbol
                    Platform.sharedLibraryPathVariableName(), nativePath + "/lib");
                    ^
  symbol: variable Platform
  location: class MIT
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-11.0.18+1-61\\src.full\\open\\test\\jdk\\sun\\security\\krb5\\auto\\KDC.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
3 errors
100 warnings
result: Failed. Compilation failed: Compilation failed