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All connections in the Universal Connection Pool are in use
oracle.ucp.UniversalConnectionPoolException: All connections in the Universal Connection Pool are in use	at oracle.ucp.util.UCPErrorHandler.newUniversalConnectionPoolException(UCPErrorHandler.java:368)	at oracle.ucp.util.UCPErrorHandler.throwUniversalConnectionPoolException(UCPErrorHandler.java:49)	at oracle.ucp.util.UCPErrorHandler.throwUniversalConnectionPoolException(UCPErrorHandler.java:80)	at oracle.ucp.util.UCPErrorHandler.throwUniversalConnectionPoolException(UCPErrorHandler.java:131)	at oracle.ucp.common.UniversalConnectionPoolImpl.borrowConnectionWithoutCountingRequests(UniversalConnectionPoolImpl.java:279)	at oracle.ucp.common.UniversalConnectionPoolImpl.borrowConnection(UniversalConnectionPoolImpl.java:142)	at com.oracle.oim.gcp.ucp.UCPPool.borrowConnectionFromPool(UCPPool.java:45)	at oracle.iam.notification.provider.UMSClientConnectionService.getConnection(UMSClientConnectionService.java:246)	at oracle.iam.notification.provider.UMSEmailServiceProvider.sendMessage(UMSEmailServiceProvider.java:253)	at oracle.iam.notification.provider.UMSEmailServiceProvider.sendNotification(UMSEmailServiceProvider.java:209)	at sun.reflect.GeneratedMethodAccessor1692.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)	at oracle.iam.platform.utils.DMSMethodInterceptor.invoke(DMSMethodInterceptor.java:35)	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)	at com.sun.proxy.$Proxy497.sendNotification(Unknown Source)