# generateChangeLog fails with java.lang.IndexOutOfBoundsException **URL:** \ **Category:** General Discussion\ **Created:** [March 30, 2021, 1:56pm UTC](https://forum.liquibase.org/t/generatechangelog-fails-with-java-lang-indexoutofboundsexception/5268 "2021-03-30T13:56:10Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![MagnusHagstrom](https://avatars.discourse-cdn.com/v4/letter/m/a5b964/32.png) [@MagnusHagstrom](https://forum.liquibase.org/u/MagnusHagstrom)\ **Post date:** [March 30, 2021, 1:56pm UTC](https://forum.liquibase.org/t/generatechangelog-fails-with-java-lang-indexoutofboundsexception/5268/1 "2021-03-30T13:56:10Z")
I was trying to evaluate LiquiBase, but I didnt get past generateChangeLog. Running Java version “11.0.8” 2020-07-14 LTS LiquiBase version 4.3.2 10.4.16-MariaDB Driver mariadb-java-client-2.7.2.jar liquibase.properties driver: org.mariadb.jdbc.Driver classpath: ./mariadb-java-client-2.7.2.jar url: jdbc:mariadb://host:port/db username: user password: pwd changeLogFile: myChangeLog.xml liquibase.hub.ApiKey: xx liquibaseProLicenseKey: xx commandrun: liquibase --logLevel=debug generateChangeLog I have removed sequences and views , just in case. Any suggestion where to start? Stacktrace: [2021-03-30 15:53:48] FIN [liquibase.servicelocator] Loaded liquibase.diff.output.changelog.ChangeGenerator instance com.datical.liquibase.ext.storedlogic.trigger.UnexpectedTriggerChangeGenerator [2021-03-30 15:53:48] FIN [liquibase.diff] ChangedObjectChangeGenerator type order: liquibase.structure.core.Catalog liquibase.structure.core.ForeignKey liquibase.structure.core.Schema liquibase.structure.core.Sequence liquibase.structure.core.Table liquibase.structure.core.Column liquibase.structure.core.PrimaryKey liquibase.structure.core.UniqueConstraint liquibase.structure.core.Index liquibase.structure.core.View [2021-03-30 15:53:48] FIN [liquibase.diff] MissingObjectChangeGenerator type order: liquibase.structure.core.Catalog liquibase.structure.core.Schema liquibase.structure.core.Sequence liquibase.structure.core.Table liquibase.structure.core.Column liquibase.structure.core.PrimaryKey liquibase.structure.core.UniqueConstraint liquibase.structure.core.Index liquibase.structure.core.ForeignKey liquibase.structure.core.View Unexpected error running Liquibase: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 For more information, please use the --logLevel flag [2021-03-30 15:53:48] ALLVARLIG [liquibase.integration] Unexpected error running Liquibase: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 liquibase.exception.LiquibaseException: liquibase.command.CommandExecutionException: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 at liquibase.integration.commandline.CommandLineUtils.doGenerateChangeLog(CommandLineUtils.java:251) at liquibase.integration.commandline.Main.doMigration(Main.java:1542) at liquibase.integration.commandline.Main$1.lambda$run$0(Main.java:367) at liquibase.Scope.lambda$child$0(Scope.java:160) at liquibase.Scope.child(Scope.java:169) at liquibase.Scope.child(Scope.java:159) at liquibase.Scope.child(Scope.java:138) at liquibase.integration.commandline.Main$1.run(Main.java:366) at liquibase.integration.commandline.Main$1.run(Main.java:196) at liquibase.Scope.child(Scope.java:169) at liquibase.Scope.child(Scope.java:145) at liquibase.integration.commandline.Main.run(Main.java:196) at liquibase.integration.commandline.Main.main(Main.java:158) Caused by: liquibase.command.CommandExecutionException: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 at liquibase.command.AbstractCommand.execute(AbstractCommand.java:24) at liquibase.integration.commandline.CommandLineUtils.doGenerateChangeLog(CommandLineUtils.java:249) … 12 more Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 at liquibase.diff.output.changelog.DiffToChangeLog.print(DiffToChangeLog.java:203) at liquibase.diff.output.changelog.DiffToChangeLog.print(DiffToChangeLog.java:85) at liquibase.command.core.GenerateChangeLogCommand.run(GenerateChangeLogCommand.java:74) at liquibase.command.AbstractCommand.execute(AbstractCommand.java:19) … 13 more Caused by: java.lang.RuntimeException: java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 at liquibase.diff.output.changelog.DiffToChangeLog$1.run(DiffToChangeLog.java:186) at liquibase.Scope.lambda$child$0(Scope.java:160) at liquibase.Scope.child(Scope.java:169) at liquibase.Scope.child(Scope.java:159) at liquibase.Scope.child(Scope.java:138) at liquibase.diff.output.changelog.DiffToChangeLog.print(DiffToChangeLog.java:127) … 16 more Caused by: java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 at java.base/jdk.internal.util.Preconditions.outOfBounds(Unknown Source) at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Unknown Source) at java.base/jdk.internal.util.Preconditions.checkIndex(Unknown Source) at java.base/java.util.Objects.checkIndex(Unknown Source) at java.base/java.util.ArrayList.get(Unknown Source) at liquibase.change.ColumnConfig.(ColumnConfig.java:154) at liquibase.change.AddColumnConfig.(AddColumnConfig.java:16) at liquibase.diff.output.changelog.core.MissingIndexChangeGenerator.fixMissing(MissingIndexChangeGenerator.java:70) at liquibase.diff.output.changelog.ChangeGeneratorChain.fixMissing(ChangeGeneratorChain.java:48) at liquibase.diff.output.changelog.ChangeGeneratorFactory.fixMissing(ChangeGeneratorFactory.java:95) at liquibase.diff.output.changelog.DiffToChangeLog.generateChangeSets(DiffToChangeLog.java:302) at liquibase.diff.output.changelog.DiffToChangeLog.printNew(DiffToChangeLog.java:226) at liquibase.diff.output.changelog.DiffToChangeLog$1.run(DiffToChangeLog.java:133) … 21 more ---
**Author:** ![ronak](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.liquibase.org/ronak/32/221_2.png) [@ronak](https://forum.liquibase.org/u/ronak)\ **Post date:** [April 13, 2021, 3:42am UTC](https://forum.liquibase.org/t/generatechangelog-fails-with-java-lang-indexoutofboundsexception/5268/2 "2021-04-13T03:42:29Z")
Hi @MagnusHagstrom , Thanks for providing all that info. It was very helpful to see exact command ran and liquibase property values. May we take a look at the whole log and not only the stack trace? I noticed you had log level set to debug so it should provide more context. Thanks, Ronak ---
**Author:** ![MagnusHagstrom](https://avatars.discourse-cdn.com/v4/letter/m/a5b964/32.png) [@MagnusHagstrom](https://forum.liquibase.org/u/MagnusHagstrom)\ **Post date:** [April 13, 2021, 7:52am UTC](https://forum.liquibase.org/t/generatechangelog-fails-with-java-lang-indexoutofboundsexception/5268/3 "2021-04-13T07:52:56Z")
Sure thing, I didnt find any way to attach a file on this forum, I used a online service. The file is valid for 30 days > **[easyupload.io](https://easyupload.io/kqdcm5)** > > easyupload.io ---
**Author:** ![MagnusHagstrom](https://avatars.discourse-cdn.com/v4/letter/m/a5b964/32.png) [@MagnusHagstrom](https://forum.liquibase.org/u/MagnusHagstrom)\ **Post date:** [April 14, 2021, 1:55pm UTC](https://forum.liquibase.org/t/generatechangelog-fails-with-java-lang-indexoutofboundsexception/5268/4 "2021-04-14T13:55:48Z")
I put alot of time testing yesterday. I created a new database and took the script for creating our database to generate all the tables , views and sequences. I ran generateChangeLog and it failed. I created a new database , this time I took the same script as above, but I created the tables,views and sequnces in the correct order ( ie SET FOREIGN\_KEY\_CHECKS=1; was on the whole time.) This time the generateChangeLog didnt fail. Maybe this is some good information for you, it seems that LiquiBase has som difficulties figuring out the correct order of things. It is some good news for me, I now have a workaround : 1. Create the tables in the correct order in a tmp database. 2. GenerateChangeLog 3. Do a changeLogSync 4. Transfer tables (DATABASECHANGELOG, DATABASECHANGELOGLOCK) to the correct destination database.