Drop All Database Objects fail in liquibase

Liquibase Development
1

when i am trying to drop all objects from a database using Liquibase, its getting error. After running in debug mode i found that its trying to drop sequence after dropping table. So get a error ’ sequence not exists’.
I am running in a schema named “1”, But in public schema it build successfully(not trying to drop sequences).

Here is my ANT target:

<target name="dropAll" depends="prepare" >
     <dropAllDatabaseObjects

            driver="${db.driver}"
             url="${db.url}"
             username="${db.username}"
             password="${db.password}"
             defaultSchemaName="${db.schema}"
             promptOnNonLocalDatabase="yes"
             classpathref="classpath"
             />       

</target>

Here is the log error:

[dropAllDatabaseObjects] Executing EXECUTE database command: DROP TABLE "1"."database_change_log" CASCADE
 [dropAllDatabaseObjects] Executing EXECUTE database command: DROP TABLE "1"."database_change_log_lock" CASCADE
 [dropAllDatabaseObjects] Executing EXECUTE database command: DROP TABLE "1"."party" CASCADE
 [dropAllDatabaseObjects] Executing EXECUTE database command: DROP SEQUENCE "1"."party_id_seq" CASCADE
 [dropAllDatabaseObjects] Release Database Lock
 [dropAllDatabaseObjects] Executing UPDATE database command: UPDATE "1".databasechangeloglock SET LOCKED = FALSE, LOCKEDBY = NULL, LOCKGRANTED = NULL WHERE ID =1
 [dropAllDatabaseObjects] Successfully released change log lock

BUILD FAILED
 D:\Liquibase 3.3.2-ems\common-model\build.xml:90: Unable to drop all objects from database.
     at   liquibase.integration.ant.DropAllTask.executeWithLiquibaseClassloader(DropAllTask.java:31)
     at liquibase.integration.ant.BaseLiquibaseTask.execute(BaseLiquibaseTask.java:82)
     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
     at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
     at org.apache.tools.ant.Task.perform(Task.java:348)
     at org.apache.tools.ant.Target.execute(Target.java:392)
     at org.apache.tools.ant.Target.performTasks(Target.java:413)
     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
     at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
     at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
     at org.apache.tools.ant.Main.runBuild(Main.java:811)
     at org.apache.tools.ant.Main.startAnt(Main.java:217)
     at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
     at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
     Caused by: liquibase.exception.DatabaseException:   org.postgresql.util.PSQLException: ERROR: sequence "party_id_seq" does not exist
     at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:316)
     at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:55)
     at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:122)
     at liquibase.executor.jvm.JdbcExecutor.execute(JdbcExecutor.java:112)
     at liquibase.database.AbstractJdbcDatabase.dropDatabaseObjects(AbstractJdbcDatabase.java:753)
     at liquibase.Liquibase.dropAll(Liquibase.java:743)
     at liquibase.Liquibase.dropAll(Liquibase.java:730)
     at liquibase.integration.ant.DropAllTask.executeWithLiquibaseClassloader(DropAllTask.java:28)
     ... 17 more
    Caused by: org.postgresql.util.PSQLException: ERROR: sequence "party_id_seq"does not exist
     at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2198)
     at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1927)
     at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
     at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:561)
     at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:405)
     at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:397)
     at liquibase.executor.jvm.JdbcExecutor$ExecuteStatementCallback.doInStatement(JdbcExecutor.java:314)
     ... 24 more
2

I see you created https://liquibase.jira.com/browse/CORE-2256 for this, thanks.

Nathan