I had a zookeeper with version 3.4.10 and curator with version 2.12.0 but zookeeper with versions less than 3.5.8 has a strict transitive dependency on log4j1.
I would like to use log4j2 that's why it's require to update zookeeper version. I tried different combinations:
zookeeper 3.6.1 and curator 5.1.0
zookeeper 3.5.9 and curator 5.1.0
zookeeper 3.5.9 and curator 5.0.0
zookeeper 3.5.9 and curator 5.1.0 + exclude zookeeper dependency from curator
zookeeper 3.5.9 and curator 4.3.0 + exclude zookeeper dependency from curator
zookeeper 3.6.1 and curator 5.1.0 + exclude zookeeper dependency from curator
All of these options fail.
1 option is failing with the following stacktrace:
java.lang.NoSuchMethodError: org.apache.zookeeper.ZooKeeper.close(I)Z
2021-04-05 14:22:19.633 WARN o.a.c.loader.WebappClassLoaderBase The web application [ROOT] appears to have started a thread named [main-EventThread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2044)
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495)
2021-04-05 14:22:19.638 ERROR c.w.event.ApplicationFailedListener ApplicationFailedEvent, possibly port is not available or analyze message above, application will be restarted
2-6 options look like has the same stracktrace:
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'zookeeperPropertySourceLocator' defined in org.springframework.cloud.zookeeper.config.ZookeeperConfigBootstrapConfiguration: Unsatisfied dependency
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'curatorFramework' defined in org.springframework.cloud.zookeeper.ZookeeperAutoConfiguration: Bean instantiation via factory method failed; nested exception i ...
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.curator.framework.CuratorFramework]: Factory method 'curatorFramework' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/zookee
Caused by: java.lang.NoClassDefFoundError: org/apache/zookeeper/admin/ZooKeeperAdmin
at org.apache.curator.framework.CuratorFrameworkFactory.<clinit>(CuratorFrameworkFactory.java:65)
Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.admin.ZooKeeperAdmin
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
Actually, ZooKeeperAdmin class presents in Zookeeper since 3.5.7 that's why it's strange why it cannot be found.
Could someone suggest any ideas? Is it an issue with dependencies versions (I couldn't find any details for zk > 3.4 with curator)? Or any way to debug and get understanding of this issue?
you may need to check the env of the zookeeper version to whether has the class of org/apache/zookeeper/admin/ZooKeeperAdmin.
As I checked the ISSUE of Zookeeper, found that the zookeeperAdmin was new in the below issue.
https://issues.apache.org/jira/browse/ZOOKEEPER-3689
and refer to the pr https://github.com/apache/zookeeper/pull/1285
So you may have two methods to solve this problem.
downgrade the zookeeper version to 3.4.13, and using curator 4.2.0, please refer to https://curator.apache.org/zk-compatibility-34.html.
upgrade the curator to 5.2.1 and upgrade the env of zookeeper which needs 3.6.1 above.
Related
This question was migrated from Geographic Information Systems Stack Exchange because it can be answered on Stack Overflow.
Migrated 14 days ago.
I have been trying to port an existing application using PostGIS from Spring 5 to Spring 6.
I get an error saying that org.hibernate.spatial.dialect.postgis.PostgisDialect is not more available:
Task :packages:discover-app-back-api:bootRun FAILED
Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
Caused by: org.hibernate.boot.registry.selector.spi.StrategySelectionException: Unable to resolve name [org.hibernate.spatial.dialect.postgis.PostgisDialect] as strategy [org.hibernate.dialect.Dialect]
Caused by: org.hibernate.boot.registry.classloading.spi.ClassLoadingException: Unable to load class [org.hibernate.spatial.dialect.postgis.PostgisDialect]
Caused by: java.lang.ClassNotFoundException: Could not load requested class : org.hibernate.spatial.dialect.postgis.PostgisDialect
Spring boot 3.0.2
Spring security 6.0.1
Hibernate 6.1.6
Indeed, this class is no more available in the version 6.X.
What configuration should I use?
You no longer need to specify the dialect:
The PostgisDialect class was first replaced by PostgisPG9xDialect / PostgisPG10Dialect classes, but now these are also deprecated ("A SpatialDialect is no longer required.").
So the correct dialect is the default (org.hibernate.dialect.PostgreSQLDialect).
But since it is the default it shouldn't be necessary to specify it in your Spring-Boot application, both the default driver and dialect can be derived from what you specify in spring.datasource.url
I'm switching my log4j config from PatternLayout to JasonLayout. After the change, I started having the following error:
ERROR Could not create plugin of type class org.apache.logging.log4j.core.layout.JsonLayout for element JsonLayout: java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ser/FilterProvider java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ser/FilterProvider
at org.apache.logging.log4j.core.layout.JsonLayout.<init>(JsonLayout.java:159)
at org.apache.logging.log4j.core.layout.JsonLayout.<init>(JsonLayout.java:71)
at org.apache.logging.log4j.core.layout.JsonLayout$Builder.build(JsonLayout.java:103)
at org.apache.logging.log4j.core.layout.JsonLayout$Builder.build(JsonLayout.java:79)
at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:124)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1138)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1063)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1055)
at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1055)
at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:664)
at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:258)
at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:304)
at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:621)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:694)
at org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:711)
at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:196)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:599)
at de.ic_consult.planetarium.listener.ListenerEmbedded.<clinit>(ListenerEmbedded.java:49)
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.databind.ser.FilterProvider
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
... 21 more
This class comes from jackson-databind, which in my case, is version 2.13.1, that comes as dependency from log4j 2.17.2.
I'm using gradle to manage the dependencies, and the log4j dependency comes from an internal framework, in which I saw that log4j is loaded as:
implementation('org.apache.logging.log4j:log4j-api')
runtimeOnly('org.apache.logging.log4j:log4j-core')
runtimeOnly('org.apache.logging.log4j:log4j-jcl')
Could it be that the fact that I'm loading log4j-core and logj4-jcl as runtimeOnly is causing this problem?
jackson-databind is an optional dependency of log4j-core. Basically it means that if you want to include it, you'll have to declare it explicitly as dependency on your project (cf. Maven optional dependencies).
Summary
We have spring boot projects that working on Tomcat in Centos 7. I'm using kafka for message transactions. When tomcat started, #KafkaListener 's trying to get metadata. At that time I'm getting exception;
java.lang.NoClassDefFoundError: java/util/Base64$Encoder
What I've Tried
At the first place i thought this was all about old kafka-logs. I removed them and restarted the server. Everything was fine. But today i got this exception again. Removing kafka-logs didn't solve my issue.
Kafka Broker Version: kafka_2.13-2.8.0
Kafka Client Version: org.apache.kafka:kafka-clients:jar:2.8.0
OpenJDK: 1.8.0_292
SLF4J: Failed toString() invocation on an object of type
[org.apache.kafka.common.requests.MetadataRequest] Reported exception:
java.lang.NoClassDefFoundError: java/util/Base64$Encoder
at org.apache.kafka.common.Uuid.toString(Uuid.java:101)
at org.apache.kafka.common.message.MetadataRequestData$MetadataRequestTopic.toString(MetadataRequestData.java:662)
at org.apache.kafka.common.protocol.MessageUtil.deepToString(MessageUtil.java:53)
at org.apache.kafka.common.message.MetadataRequestData.toString(MetadataRequestData.java:373)
at org.apache.kafka.common.requests.AbstractRequest.toString(AbstractRequest.java:115)
at org.apache.kafka.common.requests.AbstractRequest.toString(AbstractRequest.java:120)
at org.slf4j.helpers.MessageFormatter.safeObjectAppend(MessageFormatter.java:277)
at org.slf4j.helpers.MessageFormatter.deeplyAppendParameter(MessageFormatter.java:249)
at org.slf4j.helpers.MessageFormatter.arrayFormat(MessageFormatter.java:211)
at org.slf4j.helpers.MessageFormatter.arrayFormat(MessageFormatter.java:161)
at org.apache.kafka.common.utils.LogContext$LocationAwareKafkaLogger.writeLog(LogContext.java:428)
at org.apache.kafka.common.utils.LogContext$LocationAwareKafkaLogger.debug(LogContext.java:229)
at org.apache.kafka.clients.NetworkClient.doSend(NetworkClient.java:522)
at org.apache.kafka.clients.NetworkClient.doSend(NetworkClient.java:501)
at org.apache.kafka.clients.NetworkClient.sendInternalMetadataRequest(NetworkClient.java:467)
at org.apache.kafka.clients.NetworkClient$DefaultMetadataUpdater.maybeUpdate(NetworkClient.java:1141)
at org.apache.kafka.clients.NetworkClient$DefaultMetadataUpdater.maybeUpdate(NetworkClient.java:1046)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:559)
at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:265)
at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:236)
at org.apache.kafka.clients.consumer.KafkaConsumer.pollForFetches(KafkaConsumer.java:1296)
at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1237)
at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1210)
at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.doPoll(KafkaMessageListenerContainer.java:1206)
at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.pollAndInvoke(KafkaMessageListenerContainer.java:1110)
at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.run(KafkaMessageListenerContainer.java:1031)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:748)
I am developing a Flink application and it will use Cassandra Driver to interact with Cassandra DB. The Cassandra Driver is implemented in Singleton fashion and multiple Flink process functions will interact with it to get data from Cassandra. I also add a future callback to each Session.executeAsync's ResultSetFuture. The app is run on Kubernetes through Docker containers.
The environment is:
Flink version is 1.10.0 and using shaded netty, hadoop, guava and jackson.
Using cassandra-driver-mapping: 3.9.0 and shaded cassandra-driver-core: 3.9.0.
All dependencies are packaged in a single jar using Bazel. Before starting the Flink app, I check all the required classes are in the jar and are correct and complete. And I use the shaded dependency in order to avoid class loading conflict in JVM. But, when I start and run the Flink app. I keep seeing the following ClassNotFoundException in the Taskmanager logs.
java.lang.NoClassDefFoundError: com/datastax/driver/core/SessionManager$State
at com.datastax.driver.core.SessionManager.getState(SessionManager.java:211)
at io.uhana.cassandra.CassandraDriver.sessionNeedsReconnect(CassandraDriver.java:508)
at io.uhana.cassandra.CassandraDriver.access$000(CassandraDriver.java:61)
at io.uhana.cassandra.CassandraDriver$1.onFailure(CassandraDriver.java:518)
at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1387)
at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1015)
at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:868)
at com.google.common.util.concurrent.AbstractFuture.setException(AbstractFuture.java:713)
at com.datastax.driver.core.DefaultResultSetFuture.onSet(DefaultResultSetFuture.java:230)
at com.datastax.driver.core.RequestHandler.setFinalResult(RequestHandler.java:235)
at com.datastax.driver.core.RequestHandler.access$2600(RequestHandler.java:61)
at com.datastax.driver.core.RequestHandler$SpeculativeExecution.setFinalResult(RequestHandler.java:1011)
at com.datastax.driver.core.RequestHandler$SpeculativeExecution.onSet(RequestHandler.java:647)
at com.datastax.driver.core.Connection$Dispatcher.channelRead0(Connection.java:1262)
at com.datastax.driver.core.Connection$Dispatcher.channelRead0(Connection.java:1180)
at com.datastax.shaded.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
at com.datastax.shaded.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
at com.datastax.shaded.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
at com.datastax.shaded.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312)
at com.datastax.shaded.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
at com.datastax.shaded.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
at com.datastax.driver.core.InboundTrafficMeter.channelRead(InboundTrafficMeter.java:38)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
at com.datastax.shaded.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1304)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
at com.datastax.shaded.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
at com.datastax.shaded.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:921)
at com.datastax.shaded.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:135)
at com.datastax.shaded.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646)
at com.datastax.shaded.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:546)
at com.datastax.shaded.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:500)
at com.datastax.shaded.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
at com.datastax.shaded.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
at com.datastax.shaded.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ClassNotFoundException: com.datastax.driver.core.SessionManager$State
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at org.apache.flink.util.ChildFirstClassLoader.loadClass(ChildFirstClassLoader.java:69)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 49 more
and
ConstantReconnectionPolicy$ConstantSchedule' [enable DEBUG level for full stacktrace] was thrown by a user handler's exceptionCaught() method while handling the following exception:
java.lang.NoClassDefFoundError: com/datastax/shaded/netty/handler/timeout/IdleState
at com.datastax.shaded.netty.handler.timeout.IdleStateHandler$ReaderIdleTimeoutTask.run(IdleStateHandler.java:493)
at com.datastax.shaded.netty.handler.timeout.IdleStateHandler$AbstractIdleTask.run(IdleStateHandler.java:466)
at com.datastax.shaded.netty.util.concurrent.PromiseTask$RunnableAdapter.call(PromiseTask.java:38)
at com.datastax.shaded.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:120)
at com.datastax.shaded.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:399)
at com.datastax.shaded.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:464)
at com.datastax.shaded.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
at com.datastax.shaded.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ClassNotFoundException: com.datastax.shaded.netty.handler.timeout.IdleState
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at org.apache.flink.util.ChildFirstClassLoader.loadClass(ChildFirstClassLoader.java:69)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 9 more
I also notice that these issues are easier to reproduce when giving more resources and parallelism to the Flink app and the process functions. And the issues are most likely happen in the future callback.
Any help appreciated!
I am currently working on a Java8 WebApp with Hibernate and Vaadin and Liquibase as a dependency which I tried to run on Azure for testing.I didn't write this app myself and the version that was given to me was originally using Liquibase 3.0.7 and apparently running on a Tomcat 8.0.28
I updated this to 3.7.0 (see bottom for specific reasons why) and now get the following error:
liquibase.exception.UnexpectedLiquibaseException: Cannot find LockService for unsupported
liquibase.lockservice.LockServiceFactory.getLockService(LockServiceFactory.java:74)
liquibase.Liquibase.update(Liquibase.java:183)
liquibase.Liquibase.update(Liquibase.java:179)
liquibase.Liquibase.update(Liquibase.java:175)
liquibase.Liquibase.update(Liquibase.java:168)
com.app.test.AppServlet.initDB(AppServlet.java:86)
com.app.test.AppServlet.servletInitialized(AppServlet.java:44)
com.vaadin.server.VaadinServlet.init(VaadinServlet.java:217)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:660)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:798)
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:808)
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:748)
I am testing locally with a tomcat 8.5.47 and a Tomcat 7 as well as the tomcat7 maven plugin that allows me to run the app with maven and see all the logging in the console. I am trying to deploy the .war to a Tomcat 8.5 on Azure.
So I got the following Servers:
Tomcat 8.5.47 (local)
Tomcat 7.0.96 (local)
Tomcat 7.x (Maven Plugin)
Tomcat 8.5.41 (Azure)
The above problem occurs only on Azure
All the local Servers seem to work (I did not go too deep into testing though, but at least they render the front-page).
The database is a MariaDB also running on Azure and all of the configuration for the connection is made in the code via hibernate config or in the jdbc connection string, so all the servers run the same code and connect to the exact same db.
I already tried the latest Version 3.8.0 but have the same problem there so I got back to 3.7.0
How can I fix this error?
Update:
I found more errors in the server log after activating verbose logging:
2019-10-23T13:30:58.611225727Z Caused by: liquibase.exception.ServiceNotFoundException: liquibase.exception.ServiceNotFoundException: Could not find unique implementation of liquibase.executor.Executor. Found 0 implementations
2019-10-23T13:30:58.611235727Z at liquibase.servicelocator.ServiceLocator.newInstance(ServiceLocator.java:216) ~[liquibase-core-3.7.0.jar:na]
2019-10-23T13:30:58.611246427Z at liquibase.executor.ExecutorService.lambda$getExecutor$0(ExecutorService.java:26) ~[liquibase-core-3.7.0.jar:na]
2019-10-23T13:30:58.611256327Z ... 31 common frames omitted
2019-10-23T13:30:58.611265628Z Caused by: liquibase.exception.ServiceNotFoundException: Could not find unique implementation of liquibase.executor.Executor. Found 0 implementations
2019-10-23T13:30:58.611275428Z at liquibase.servicelocator.ServiceLocator.findClass(ServiceLocator.java:188) ~[liquibase-core-3.7.0.jar:na]
2019-10-23T13:30:58.611285028Z at liquibase.servicelocator.ServiceLocator.newInstance(ServiceLocator.java:214) ~[liquibase-core-3.7.0.jar:na]
2019-10-23T13:30:58.611294328Z ... 32 common frames omitted
and
2019-10-24T08:59:39.545505776Z 24.10.2019 08:59:39.483 INFO com.app.test.AppServlet - servletInitialized
2019-10-24T08:59:39.546076490Z 24.10.2019 08:59:39.492 INFO com.app.test.AppServlet - initDB
2019-10-24T08:59:40.130035108Z 24.10.2019 08:59:40.129 WARN liquibase.database.DatabaseFactory - Unknown database: MySQL
2019-10-24T08:59:40.162920831Z 24.10.2019 08:59:40.162 INFO l.database.core.UnsupportedDatabase - Error getting default schema
2019-10-24T08:59:40.162974433Z liquibase.exception.UnexpectedLiquibaseException: liquibase.exception.ServiceNotFoundException: liquibase.exception.ServiceNotFoundException: Could not find
unique implementation of liquibase.executor.Executor. Found 0 implementations
More Background
Azure only allows me to create App Services with Tomcat 8.5 or 9 and the App in it's original state would not work on both of the Tomcat 8.5 servers.
I received an error: Could not find implementation of liquibase.logging.Logger
Updating Liquibase to 3.2.3 (because that's where the error should've been fixed) fixed this for all of my local machines, but I still received it on Azure.
After updating to 3.7.0 I do not receive the could not find implementation.. error anymore but now receive the error above as well as a problem with my xml scheme which doesn't seem to crash the app though and doesn't seem to be related:
Caused by: org.xml.sax.SAXParseException: s4s-elt-schema-ns: Namespace des Elements 'databaseChangeLog' muss aus dem Schema-Namespace 'http://www.w3.org/2001/XMLSchema' stammen.