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2019-09-19 07:38:30.286 ERROR [main][ReleaseManagerOSGiCommands:93] bundle com.liferay.portal.upgrade.impl:3.0.6 (143)[com.liferay.portal.upgrade.internal.release.osgi.commands.ReleaseManagerOSGiCommands(410)] : The activate method has thrown an exception
com.liferay.portal.kernel.upgrade.UpgradeException: Bundle com.liferay.portal.workflow.metrics.service_1.0.3 [928] has invalid content in tables.sql:_create table WorkflowMetricsSLADefinition (_ mvccVersion LONG default 0 not null,_ uuid_ VARCHAR(75) null,_ workflowMetricsSLADefinitionId LONG not null primary key,_ groupId LONG,_ companyId LONG,_ userId LONG,_ userName VARCHAR(75) null,_ createDate DATE null,_ modifiedDate DATE null,_ name STRING null,_ description TEXT null,_ duration LONG,_ calendarKey VARCHAR(75) null,_ processId LONG,_ processVersion VARCHAR(75) null,_ pauseNodeKeys VARCHAR(75) null,_ startNodeKeys VARCHAR(75) null,_ stopNodeKeys VARCHAR(75) null,_ status INTEGER_); [Sanitized]
at com.liferay.portal.spring.extender.internal.upgrade.InitialUpgradeExtender$InitialUpgradeStep.upgrade(InitialUpgradeExtender.java:179)
[..]
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
Caused by: com.ibm.db2.jcc.am.SqlSyntaxErrorException: DB2 SQL Error: SQLCODE=-601, SQLSTATE=42710, SQLERRMC=JOSE.WORKFLOWMETRICSSLADEFINITION;TABLE, DRIVER=4.26.14
at com.ibm.db2.jcc.am.b7.a(b7.java:810)
[..]
at com.liferay.portal.dao.db.BaseDB.runSQL(BaseDB.java:344)
[..]
at com.liferay.portal.spring.extender.internal.upgrade.InitialUpgradeExtender$InitialUpgradeStep.upgrade(InitialUpgradeExtender.java:175)
... 122 more
2019-09-19 07:38:33.573 INFO [main][SystemCheckOSGiCommands:54] System check is enabled. You can run a system check with the command "system:check" in Gogo shell.
19-Sep-2019 07:38:34.996 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [54,546] milliseconds
ブラウザでのリクエストは、次のようなエラーで空白のページが返されることがあります：
An unexpected system error occurred.
java.lang.NullPointerException