java - Register Optional for JDBI -


i got no container builder available com.google.common.base.optional error.

here fuller stack trace:

java.lang.illegalstateexception: no container builder available com.google.common.base.optional     @     org.skife.jdbi.v2.containerfactoryregistry.createbuilderfor(containerfactoryregistry.java:75)     @ org.skife.jdbi.v2.query.first(query.java:271)     @     org.skife.jdbi.v2.sqlobject.resultreturnthing$singlevalueresultreturnthing.result(resultreturnthing.java:112)     @ org.skife.jdbi.v2.sqlobject.resultreturnthing.map(resultreturnthing.java:48)     @ org.skife.jdbi.v2.sqlobject.queryhandler.invoke(queryhandler.java:45)     @ org.skife.jdbi.v2.sqlobject.sqlobject.invoke(sqlobject.java:175)     @ org.skife.jdbi.v2.sqlobject.sqlobject$1.intercept(sqlobject.java:75)     @ org.skife.jdbi.v2.sqlobject.closeinternaldonotusethisclass$$enhancerbycglib$$b270edb1.select(<generated>)

i have dao interface this:

import com.google.common.base.optional;  public interface mydao {     @sqlquery("something")     optional<data> select(); }

here data access layer unit test:

public class mydaotest {     @test     public void shouldselect() {         dbi dbi = new dbi("jdbc:(something)", "something", "something");         mydao mydao = dbi.ondemand(mydao.class);         optional<data> data = mydao.select();         assertfalse(data.absent());     } }

register io.dropwizard.jdbi.optionalcontainerfactory if using com.google.common.base.optional , error no container builder available com.google.common.base.optional.

register io.dropwizard.java8.jdbi.optionalcontainerfactory if using java.util.optional , error no container builder available java.util.optional.

i followed instructions here:

public class mydaotest { @test public void shouldselect() {     dbi dbi = new dbi("jdbc:(something)", "something", "something");     dbi.registercontainerfactory(new optionalcontainerfactory());     ... }

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