# Migrate 1.9.5 to 4.1.1 **URL:** \ **Category:** General Discussion\ **Created:** [October 22, 2020, 7:16pm UTC](https://forum.liquibase.org/t/migrate-1-9-5-to-4-1-1/4748 "2020-10-22T19:16:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![tom2011](https://avatars.discourse-cdn.com/v4/letter/t/8797f3/32.png) [@tom2011](https://forum.liquibase.org/u/tom2011)\ **Post date:** [October 22, 2020, 7:16pm UTC](https://forum.liquibase.org/t/migrate-1-9-5-to-4-1-1/4748/1 "2020-10-22T19:16:18Z")
Is there documentation to migrate from a very old version 1.9.5 to latest? I was trying to use liquibase-maven-plugin 4.1.1 on 1.9.5 databasechangelog table. I added all new columns but it is giving me the following error Caused by: org.apache.maven.plugin.MojoExecutionException: Error setting up or running Liquibase: java.lang.NullPointerException at org.liquibase.maven.plugins.AbstractLiquibaseMojo.lambda$null$0(AbstractLiquibaseMojo.java:449) at liquibase.Scope.lambda$child$0(Scope.java:160) at liquibase.Scope.child(Scope.java:169) at liquibase.Scope.child(Scope.java:159) at liquibase.Scope.child(Scope.java:138) at org.liquibase.maven.plugins.AbstractLiquibaseMojo.lambda$execute$1(AbstractLiquibaseMojo.java:372) at liquibase.Scope.lambda$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.Scope.child(Scope.java:222) at liquibase.Scope.child(Scope.java:226) at org.liquibase.maven.plugins.AbstractLiquibaseMojo.execute(AbstractLiquibaseMojo.java:306) … 21 more Caused by: liquibase.exception.LiquibaseException: java.lang.NullPointerException at liquibase.Liquibase.runInScope(Liquibase.java:2282) at liquibase.Liquibase.update(Liquibase.java:215) at liquibase.Liquibase$1.run(Liquibase.java:394) at liquibase.Scope.lambda$child$0(Scope.java:160) at liquibase.Scope.child(Scope.java:169) at liquibase.Scope.child(Scope.java:159) at liquibase.Scope.child(Scope.java:138) at liquibase.Liquibase.runInScope(Liquibase.java:2277) at liquibase.Liquibase.update(Liquibase.java:379) at liquibase.Liquibase.update(Liquibase.java:371) at liquibase.Liquibase.update(Liquibase.java:666) at org.liquibase.maven.plugins.LiquibaseUpdateSQL.doUpdate(LiquibaseUpdateSQL.java:51) at org.liquibase.maven.plugins.AbstractLiquibaseUpdateMojo.performLiquibaseTask(AbstractLiquibaseUpdateMojo.java:30) at org.liquibase.maven.plugins.AbstractLiquibaseMojo.lambda$null$0(AbstractLiquibaseMojo.java:446) … 33 more Caused by: java.lang.NullPointerException at liquibase.changelog.StandardChangeLogHistoryService.getRanChangeSets(StandardChangeLogHistoryService.java:329) at liquibase.changelog.AbstractChangeLogHistoryService.upgradeChecksums(AbstractChangeLogHistoryService.java:65) at liquibase.changelog.StandardChangeLogHistoryService.upgradeChecksums(StandardChangeLogHistoryService.java:292) at liquibase.Liquibase.checkLiquibaseTables(Liquibase.java:1788) at liquibase.Liquibase.lambda$update$1(Liquibase.java:232) at liquibase.Scope.lambda$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.Liquibase.runInScope(Liquibase.java:2277) … 46 more ---
**Author:** ![tom2011](https://avatars.discourse-cdn.com/v4/letter/t/8797f3/32.png) [@tom2011](https://forum.liquibase.org/u/tom2011)\ **Post date:** [October 23, 2020, 12:10am UTC](https://forum.liquibase.org/t/migrate-1-9-5-to-4-1-1/4748/2 "2020-10-23T00:10:37Z")
I found from the liquibase source code that it is reading the value of ORDEREXECUTED and EXECTYPE so I have set those values as -1 and ‘EXECUTED’ update databasechangelog set ORDEREXECUTED = -1, exectype=‘EXECUTED’ It seems to be working but it just keep on showing the following WARNING And it generates a lots of update statements to MD5SUM to existing changesets. Is it the way to migrate to 4.1.1? [WARNING] Cannot create filesystem for url file:/C:/projects/workspace/myproject/target/classes: C:\projects\workspace\myproject\target\classes java.nio.file.FileSystemNotFoundException: C:\projects\workspace\IntelliJ\myproject\target\classes at com.sun.nio.zipfs.ZipFileSystem. (ZipFileSystem.java:120) at com.sun.nio.zipfs.ZipFileSystemProvider.newFileSystem (ZipFileSystemProvider.java:139) at java.nio.file.FileSystems.newFileSystem (FileSystems.java:390) at liquibase.resource.ClassLoaderResourceAccessor.loadRootPaths (ClassLoaderResourceAccessor.java:63) at liquibase.resource.ClassLoaderResourceAccessor.loadRootPaths (ClassLoaderResourceAccessor.java:79) at liquibase.resource.ClassLoaderResourceAccessor.init (ClassLoaderResourceAccessor.java:47) at liquibase.resource.ClassLoaderResourceAccessor.openStreams (ClassLoaderResourceAccessor.java:94) at org.liquibase.maven.plugins.MavenResourceAccessor.openStreams (MavenResourceAccessor.java:21) at liquibase.resource.CompositeResourceAccessor.openStreams (CompositeResourceAccessor.java:33) at liquibase.resource.AbstractResourceAccessor.openStream (AbstractResourceAccessor.java:17) at liquibase.parser.core.xml.XMLChangeLogSAXParser.parseToNode (XMLChangeLogSAXParser.java:51) at liquibase.parser.core.xml.AbstractChangeLogParser.parse (AbstractChangeLogParser.java:15) at liquibase.Liquibase.getDatabaseChangeLog (Liquibase.java:337) at liquibase.Liquibase.lambda$update$1 (Liquibase.java:229) at liquibase.Scope.lambda$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.Liquibase.runInScope (Liquibase.java:2277) at liquibase.Liquibase.update (Liquibase.java:215) at liquibase.Liquibase$1.run (Liquibase.java:394) at liquibase.Scope.lambda$child$0 (Scope.java:160) at liquibase.Scope.child (Scope.java:169) at liquibase.Scope.child (Scope.java:159) at liquibase.Scope.child (Scope.java:138) at liquibase.Liquibase.runInScope (Liquibase.java:2277) at liquibase.Liquibase.update (Liquibase.java:379) at liquibase.Liquibase.update (Liquibase.java:371) at liquibase.Liquibase.update (Liquibase.java:666) at org.liquibase.maven.plugins.LiquibaseUpdateSQL.doUpdate (LiquibaseUpdateSQL.java:51) at org.liquibase.maven.plugins.AbstractLiquibaseUpdateMojo.performLiquibaseTask (AbstractLiquibaseUpdateMojo.java:30) at org.liquibase.maven.plugins.AbstractLiquibaseMojo.lambda$null$0 (AbstractLiquibaseMojo.java:446) at liquibase.Scope.lambda$child$0 (Scope.java:160) at liquibase.Scope.child (Scope.java:169) at liquibase.Scope.child (Scope.java:159) at liquibase.Scope.child (Scope.java:138) at org.liquibase.maven.plugins.AbstractLiquibaseMojo.lambda$execute$1 (AbstractLiquibaseMojo.java:372) at liquibase.Scope.lambda$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.Scope.child (Scope.java:222) at liquibase.Scope.child (Scope.java:226) at org.liquibase.maven.plugins.AbstractLiquibaseMojo.execute (AbstractLiquibaseMojo.java:306) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289) at org.apache.maven.cli.MavenCli.main (MavenCli.java:193) at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke (Method.java:498) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282) at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347) at org.codehaus.classworlds.Launcher.main (Launcher.java:47) ---
**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:** [October 27, 2020, 8:27pm UTC](https://forum.liquibase.org/t/migrate-1-9-5-to-4-1-1/4748/3 "2020-10-27T20:27:42Z")
Hi @tom2011, There has _definitely_ been md5checksum changes, so that looks like you are on the right path. Honestly, if it were me, I would sign up for a Pro Trial and schedule a meeting with Support to at least validate your strategy: > **[Try Liquibase Pro Free | Liquibase.com](https://www.liquibase.com/trial)** > > No credit card required. No strings attached. Get a 30-day free trial of Liquibase Pro with advanced database change features and support. Full disclosure I work for the company but, I think this is a pretty good play. -Ronak