I did a fresh install with mongodb 3.0 and everything worked fine running 1.3.1.Final. However, I need to upgrade from 1.2.0.Beta1 so I tried the same configuration with everything except this time migrating the old database data. I get the following error:

at java.lang.reflect.Constructor.newInstance(Constructor.java:422)

at org.jboss.resteasy.core.ConstructorInjectorImpl.construct(ConstructorInjectorImpl.java:148)

... 19 more

Caused by: java.lang.RuntimeException: Failed to update database

at org.keycloak.connections.mongo.updater.impl.DefaultMongoUpdaterProvider.update(DefaultMongoUpdaterProvider.java:90)

at org.keycloak.connections.mongo.DefaultMongoConnectionFactoryProvider.lazyInit(DefaultMongoConnectionFactoryProvider.java:99)

... 36 more

Caused by: com.mongodb.CommandFailureException: { "serverUsed" : "kcdb/172.17.0.69:27017" , "nIndexesWas" : 1 , "ok" : 0.0 , "errmsg" : "index not found with name [realmId_1_name_1]"}

at com.mongodb.CommandResult.getException(CommandResult.java:71)

at com.mongodb.CommandResult.throwOnError(CommandResult.java:110)

at com.mongodb.DBCollection.dropIndexes(DBCollection.java:847)

at com.mongodb.DBCollection.dropIndex(DBCollection.java:1349)

at org.keycloak.connections.mongo.updater.impl.updates.Update1_2_0_CR1.convertApplicationsToClients(Update1_2_0_CR1.java:33)

at org.keycloak.connections.mongo.updater.impl.updates.Update1_2_0_CR1.update(Update1_2_0_CR1.java:23)

at org.keycloak.connections.mongo.updater.impl.DefaultMongoUpdaterProvider.update(DefaultMongoUpdaterProvider.java:79)

... 37 more

01:17:00,691 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([("deployment" => "keycloak-server.

I mentioned this before and Stian was going to look into it; at the time he thought it might be due to using mongodb 3.0. However, mongodb 3.0 works fine with a fresh install.