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Fast Data Masker: A fatal error has been detected by the Java Runtime Environment


Article ID: 5471


Updated On:


CA Test Data Manager (Data Finder / Grid Tools)


Fast Data Masker (FDM) is crashing after successfully connecting to the database. We see the following error messages in the log file from C:\Program Files\Grid-Tools\FastDataMasker: 

A fatal error has been detected by the Java Runtime Environment: 

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00000000530dd595, pid=1636, tid=5416 

JRE version: Java(TM) SE Runtime Environment (8.0_91-b14) (build 1.8.0_91-b14) 
Java VM: Java HotSpot(TM) 64-Bit Server VM (25.91-b14 mixed mode windows-amd64 compressed)
Problematic frame: 
V [jvm.dll+0x13d595] 

Core dump written. Default location: C:\Program Files\Grid-Tools\FastDataMasker\hs_err_pid1636.mdmp 

If you would like to submit a bug report, please visit: 


CA Test Data Manager (TDM)- Fast Data Masker (FDM)


The root cause of the issue is a mismatch between the JDBC jar files and the sqljdbc_auth.dll file. For trusted connections with MS SQL Server, the jar file calls the dll, so both versions have to match. 


If you have SQL Server client installed on your machine, the easiest way to resolve this is to search for the sqljdbc.jar and sqljdbc4.jar from your Microsoft SQL Server directory. You will need to copy these files into the FDM lib subdirectory folder- C:\Program Files\Grid-Tools\FastDataMasker\lib. After that, you will need to search for, and copy the sqljdbc_auth.dll file into the FDM directory folder- C:\Program Files\Grid-Tools\FastDataMasker. If you cannot find these files, please reach out to your DBA or Broadcom Support by going to

Additional Information

You can read more about FDM requirements here: