2016-08-25 14:09:40,504 ERROR [http-nio-8080-exec-1] [extra.calendar3.rest.CalendarResource] getResponseError Unable to create or update event te
 -- referer: https://tvpconfluence.cz.tmo/calendar/mycalendar.action | url: /rest/calendar-services/1.0/calendar/events.json | traceId: 6d4e49af8ca41d7f | userName: admin2
com.atlassian.activeobjects.internal.ActiveObjectsSqlException: There was a SQL exception thrown by the Active Objects library:
Database:
        - name:Oracle
        - version:Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
        - minor version:1
        - major version:12
Driver:
        - name:Oracle JDBC driver
        - version:12.1.0.1.0

java.sql.SQLIntegrityConstraintViolationException: ORA-01400: cannot insert NULL into ("SY_CONF"."AO_950DC3_TC_EVENTS"."ID")

        at com.atlassian.activeobjects.internal.EntityManagedActiveObjects.create(EntityManagedActiveObjects.java:88)
        at com.atlassian.activeobjects.osgi.TenantAwareActiveObjects.create(TenantAwareActiveObjects.java:261)
        at sun.reflect.GeneratedMethodAccessor831.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.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:56)
        at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:60)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
        at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.eclipse.gemini.blueprint.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:70)
        at org.eclipse.gemini.blueprint.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:53)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.eclipse.gemini.blueprint.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:57)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
        at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
        at com.sun.proxy.$Proxy2214.create(Unknown Source)
        at com.atlassian.confluence.extra.calendar3.DefaultActiveObjectsServiceWrapper.createEventEntity(DefaultActiveObjectsServiceWrapper.java:117)
        at com.atlassian.confluence.extra.calendar3.DefaultActiveObjectsServiceWrapper.createEventEntity(DefaultActiveObjectsServiceWrapper.java:83)
        at com.atlassian.confluence.extra.calendar3.calendarstore.AbstractCalendarDataStore.addEvent(AbstractCalendarDataStore.java:2046)
        at com.atlassian.confluence.extra.calendar3.calendarstore.SanboxSubCalendarDataStoreCachingDecorator.addEvent(SanboxSubCalendarDataStoreCachingDecorator.java:325)
        at com.atlassian.confluence.extra.calendar3.calendarstore.DelegatingCalendarDataStore.addEvent(DelegatingCalendarDataStore.java:741)
        at com.atlassian.confluence.extra.calendar3.DefaultCalendarManager.addEvent(DefaultCalendarManager.java:899)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
        at com.atlassian.plugins.spring.interceptor.plugin.ExportableInterceptorAdapter$WrappedMethodInvocation.proceed(ExportableInterceptorAdapter.java:53)
        at com.atlassian.plugins.spring.interceptor.spi.SpringInterceptorAdapter$SpringMethodInvocationAdapter.proceed(SpringInterceptorAdapter.java:50)
        at com.atlassian.spring.interceptors.SpringProfilingInterceptor.invoke(SpringProfilingInterceptor.java:16)
....

Caused by: java.sql.SQLIntegrityConstraintViolationException: ORA-01400: cannot insert NULL into ("SY_CONF"."AO_950DC3_TC_EVENTS"."ID")

        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:450)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:399)
        at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:1017)
        at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:655)
        at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:249)
        at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:566)
        at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:215)
        at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:58)
        at oracle.jdbc.driver.T4CPreparedStatement.executeForRows(T4CPreparedStatement.java:943)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1075)
        at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3820)
        at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:3897)
        at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeUpdate(OraclePreparedStatementWrapper.java:1361)
        at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:410)
        at net.java.ao.db.OracleDatabaseProvider.executeInsertReturningKey(OracleDatabaseProvider.java:294)
        at net.java.ao.DatabaseProvider.insertReturningKey(DatabaseProvider.java:1869)
        at net.java.ao.EntityManager.create(EntityManager.java:366)
        at com.atlassian.activeobjects.internal.EntityManagedActiveObjects.create(EntityManagedActiveObjects.java:86)
        ... 391 more