Registry on one of the boxes was going down with "NullPointerExcepetion" as below:

2019-12-17 11:15:56,650Z (11:15) [main] ERROR com.itko.lisa.coordinator.TestRegistryImpl - null java.lang.NullPointerException at com.itko.lisa.dradis.comm.DradisRestStrategy.handleUnnecessaryLog(DradisRestStrategy.java:130) at com.itko.lisa.dradis.comm.DradisRestStrategy.registryDataToDradis(DradisRestStrategy.java:153) at com.itko.lisa.dradis.comm.DradisCommContext.registryDataToDradis(DradisCommContext.java:320) at com.itko.lisa.coordinator.TestRegistryImpl.sendComponentToDradis(TestRegistryImpl.java:3545) at com.itko.lisa.coordinator.TestRegistryImpl.initialize(TestRegistryImpl.java:281) at com.itko.lisa.coordinator.TestRegistryImpl.<init>(TestRegistryImpl.java:239) at com.itko.lisa.coordinator.TestRegistryImpl.main(TestRegistryImpl.java:2163) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.exe4j.runtime.LauncherEngine.launch(Unknown Source) at com.exe4j.runtime.WinLauncher$2.run(Unknown Source)

To start the the Registry we had to stop every component associated with that registry and restart everything.

Release : 10.3

Component : CA Application Test

A fix for the reported problem has been worked out. Please open a support case and refer to ticket DE443404
Steps to apply the patch:

NOTE: The steps below should be followed on the machine that has Registry service running

1. Stop registry service
2. Go to LISA_HOME\lib\patches folder
3. If present, delete the file patch_DE431021_10.3.0_GA.jar
4. Place the new patch patch_DE443404_10.3.0_GA.jar in LISA_HOME\lib\patches folder
5. Start Registry Service

The issue should be resolved.