• Product: Rosetta
• Product Version: 7.2+

Symptoms

After installing Format Library 7.2106 the format identification process using DROID plugin fails with errors when getting signature version:

2023-01-11 00:05:34,521 ERROR [com.exlibris.dps.repository.plugin.formatidentification.FFDroidIdentificationPlugin] (FILE_PROCESSING_QUEUE Queue Job Receiver 99) [] Failed to get agent signature version
2023-01-11 00:05:34,521 ERROR [com.exlibris.dps.repository.plugin.formatidentification.FFDroidIdentificationPlugin] (FILE_PROCESSING_QUEUE Queue Job Receiver 99) [] java.lang.NullPointerException: Cannot invoke "uk.gov.nationalarchives.droid.core.signature.droid6.FFSignatureFile.getVersion()" because "com.exlibris.dps.repository.plugin.formatidentification.FFDroidIdentificationPlugin.sigFile" is null
        at com.exlibris.dps.repository.plugin.formatidentification.FFDroidIdentificationPlugin.getAgentSignatureVersion(FFDroidIdentificationPlugin.java:77)
        at jdk.internal.reflect.GeneratedMethodAccessor1074.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at com.exlibris.core.infra.common.javaclass.PluginInvokationHandler.invoke(PluginInvokationHandler.java:43)
        at jdk.proxy25/jdk.proxy25.$Proxy532.getAgentSignatureVersion(Unknown Source)
        at com.exlibris.dps.repository.task.vs.FileFormatIdentificationTask.writePluginOutputToDNX(FileFormatIdentificationTask.java:342)
        at com.exlibris.dps.repository.task.vs.FileFormatIdentificationTask.findFormatLibrary(FileFormatIdentificationTask.java:186)
        at com.exlibris.dps.repository.task.vs.FileFormatIdentificationTask.executeConcrete(FileFormatIdentificationTask.java:80)
        at com.exlibris.dps.repository.task.AbsVSRepositoryTask.executeTask(AbsVSRepositoryTask.java:141)
        at com.exlibris.core.repository.svc.impl.TaskServicesImpl.executeTaskOnControl(TaskServicesImpl.java:223)
        at com.exlibris.core.repository.svc.impl.TaskServicesImpl.executeTaskOnFile(TaskServicesImpl.java:172)
        at com.exlibris.core.repository.svc.impl.TaskServicesImpl.runTCOnFile(TaskServicesImpl.java:341)
        at jdk.internal.reflect.GeneratedMethodAccessor1088.invoke(Unknown Source)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)