Hi,

If a user commits a commit message with some "special" character, the bamboo fails to start the build. (we use mysql as a db) 

The message was: ".... packages, 📦 updated dependecies.....".

We had to change the column USER_COMMIT.COMMIT_COMMENT_CLOB to a multibyte type (utf8mb4) 

It would be great to have this setting by default.

Thanks

Stack trace:

2017-03-13 12:23:29,754 ERROR [5-DelayedChangeDetectionThread:pool-11-thread-5] [ChainExecutionManagerImpl] Plan 'MT-C33' could not be started. Exception: JDBC exception on Hibernate data access: SQLException for SQL [insert into USER_C
OMMIT (REPOSITORY_CHANGESET_ID, AUTHOR_ID, COMMIT_DATE, COMMIT_REVISION, COMMIT_COMMENT_CLOB, FOREIGN_COMMIT, COMMIT_ID) values (?, ?, ?, ?, ?, ?, ?)]; SQL state [HY000]; error code [1366]; could not execute batch; nested exception is o
rg.hibernate.exception.GenericJDBCException: could not execute batch
org.springframework.orm.hibernate4.HibernateJdbcException: JDBC exception on Hibernate data access: SQLException for SQL [insert into USER_COMMIT (REPOSITORY_CHANGESET_ID, AUTHOR_ID, COMMIT_DATE, COMMIT_REVISION, COMMIT_COMMENT_CLOB, FO
REIGN_COMMIT, COMMIT_ID) values (?, ?, ?, ?, ?, ?, ?)]; SQL state [HY000]; error code [1366]; could not execute batch; nested exception is org.hibernate.exception.GenericJDBCException: could not execute batch
at org.springframework.orm.hibernate4.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:170)
at org.springframework.orm.hibernate4.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:730)
at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:592)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:761)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:730)
at sun.reflect.GeneratedMethodAccessor151.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy31.commit(Unknown Source)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:484)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:291)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
at com.sun.proxy.$Proxy69.updateResultSummaryWithBuildChanges(Unknown Source)
at com.atlassian.bamboo.chains.ChainExecutionManagerImpl$1.getChainState(ChainExecutionManagerImpl.java:253)
at com.atlassian.bamboo.chains.ChainExecutionManagerImpl.tryStartChainState(ChainExecutionManagerImpl.java:334)
at com.atlassian.bamboo.chains.ChainExecutionManagerImpl.delayedStart(ChainExecutionManagerImpl.java:232)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
at com.sun.proxy.$Proxy152.delayedStart(Unknown Source)
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.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy152.delayedStart(Unknown Source)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$1$1$1.lambda$call$0(PlanExecutionManagerImpl.java:413)
at com.atlassian.bamboo.util.CacheAwareness$3.call(CacheAwareness.java:159)
at com.atlassian.bamboo.util.CacheAwareness$3.call(CacheAwareness.java:155)
at com.atlassian.bamboo.util.CacheAwareness.withValuesOlderThanTimestampReloaded(CacheAwareness.java:188)
at com.atlassian.bamboo.util.CacheAwareness.withValuesOlderThanTimestampReloaded(CacheAwareness.java:154)
at com.atlassian.bamboo.util.CacheAwareness.withValuesOlderThanTimestampReloaded(CacheAwareness.java:219)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$1$1$1.call(PlanExecutionManagerImpl.java:412)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$1$1$1.call(PlanExecutionManagerImpl.java:403)
at io.atlassian.util.concurrent.ManagedLocks$ManagedLockImpl.withLock(ManagedLocks.java:293)
at com.atlassian.bamboo.plan.PlanExecutionLockServiceImpl.lock(PlanExecutionLockServiceImpl.java:85)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.doWithProcessLock(PlanExecutionManagerImpl.java:783)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl.access$400(PlanExecutionManagerImpl.java:130)
at com.atlassian.bamboo.plan.PlanExecutionManagerImpl$1$1.run(PlanExecutionManagerImpl.java:397)
at com.atlassian.bamboo.utils.BambooRunnables$1.run(BambooRunnables.java:51)
at com.atlassian.bamboo.security.ImpersonationHelper.runWith(ImpersonationHelper.java:31)
at com.atlassian.bamboo.security.ImpersonationHelper.runWithSystemAuthority(ImpersonationHelper.java:20)
at com.atlassian.bamboo.security.ImpersonationHelper$1.run(ImpersonationHelper.java:52)
at java.lang.Thread.run(Thread.java:745)

Caused by: org.hibernate.exception.GenericJDBCException: could not execute batch
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126)
at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.performExecution(BatchingBatch.java:136)
at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.addToBatch(BatchingBatch.java:98)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3124)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3581)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:104)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:465)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:351)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:350)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1258)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:425)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:177)
at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:584)
... 53 more
Caused by: java.sql.BatchUpdateException: Incorrect string value: '\xF0\x9F\x93\xA6 u...' for column 'COMMIT_COMMENT_CLOB' at row 1
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
at com.mysql.jdbc.Util.getInstance(Util.java:387)
at com.mysql.jdbc.SQLError.createBatchUpdateException(SQLError.java:1154)
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1773)
at com.mysql.jdbc.PreparedStatement.executeBatchInternal(PreparedStatement.java:1257)
at com.mysql.jdbc.StatementImpl.executeBatch(StatementImpl.java:959)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeBatch(NewProxyPreparedStatement.java:2544)
at org.hibernate.engine.jdbc.batch.internal.BatchingBatch.performExecution(BatchingBatch.java:127)
... 66 more
Caused by: java.sql.SQLException: Incorrect string value: '\xF0\x9F\x93\xA6 u...' for column 'COMMIT_COMMENT_CLOB' at row 1
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:957)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3878)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3814)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2478)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2625)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2551)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1861)
at com.mysql.jdbc.PreparedStatement.executeUpdateInternal(PreparedStatement.java:2073)
at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:1751)
... 70 more