The log at /opt/opendj/logs/access shows the following:
```
[19/Jul/2020:20:35:53 +0000] SEARCH REQ conn=0 op=187 msgID=188 base="ou=attributes,o=gluu" scope=sub filter="(&(&(objectClass=top)(objectClass=gluuAttribute))(&(gluuAttributeName=projAttr1)(oxMultivaluedAttribute=false)))" attrs="gluuAttributeName,oxMultivaluedAttribute,salt,gluuSAML1URI,gluuSAML2URI,gluuAttributeViewType,displayName,lifetime,description,gluuTooltip,inum,oxAuthClaimName,seeAlso,oxSourceAttribute,oxNameIdType,urn,oxValidation,gluuAttributeEditType,gluuAttributeOrigin,oxSCIMCustomAttribute,gluuAttributeType,gluuStatus,gluuAttributeUsageType"
[19/Jul/2020:20:35:53 +0000] SEARCH RES conn=0 op=187 msgID=188 result=0 nentries=0 etime=2
[19/Jul/2020:20:35:53 +0000] SEARCH REQ conn=0 op=188 msgID=189 base="cn=schema" scope=base filter="(objectClass=*)" attrs="objectClasses,attributeTypes"
[19/Jul/2020:20:35:53 +0000] SEARCH RES conn=0 op=188 msgID=189 result=0 nentries=1 etime=17
[19/Jul/2020:20:35:53 +0000] SEARCH REQ conn=0 op=189 msgID=190 base="cn=schema" scope=base filter="(objectClass=*)" attrs="objectClasses,attributeTypes"
[19/Jul/2020:20:35:53 +0000] SEARCH RES conn=0 op=189 msgID=190 result=0 nentries=1 etime=11
[19/Jul/2020:20:35:54 +0000] SEARCH REQ conn=0 op=190 msgID=191 base="ou=configuration,o=gluu" scope=base filter="(objectClass=*)" attrs="gluuSamlEnabled,userPassword,displayName,oxTrustStoreConf,gluuHTTPstatus,gluuConfigurationPollingInterval,description,gluuDSstatus,oxTrustCacheRefreshServerIpAddress,oxLogConfigLocation,inum,gluuHostname,gluuPassportEnabled,oxIDPAuthentication,gluuStatus,gluuSPTR,gluuScimEnabled,oxTrustStoreCert,gluuManageIdentityPermission,gluuOrgProfileMgt,gluuVdsCacheRefreshLastUpdateCount,gluuSslExpiry,oxSmtpConfiguration,gluuVdsCacheRefreshEnabled,gluuConfigurationDnsServer,gluuMaxLogSize,oxCacheConfiguration,gluuVdsCacheRefreshPollingInterval,oxAuthenticationMode,passwordResetAllowed,gluuVdsCacheRefreshLastUpdate,gluuVdsCacheRefreshProblemCount,gluuVDSstatus,oxTrustAuthenticationMode,gluuRadiusEnabled,gluuLastUpdate,oxTrustEmail,oxLogViewerConfig,oxDocumentStoreConfiguration"
[19/Jul/2020:20:35:54 +0000] SEARCH RES conn=0 op=190 msgID=191 result=0 nentries=1 etime=1
[19/Jul/2020:20:35:59 +0000] SEARCH REQ conn=0 op=191 msgID=192 base="ou=oxtrust,ou=configuration,o=gluu" scope=base filter="(objectClass=*)" attrs="oxRevision"
[19/Jul/2020:20:35:59 +0000] SEARCH RES conn=0 op=191 msgID=192 result=0 nentries=1 etime=0
```
Looks like opendj is having issues finding this attribute, but doesn't throw any errors when restarted.