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orcl.oracle.com : ORA-01422: exact fetch returns more than requested number of rows
java.lang.Exception: orcl.oracle.com : ORA-01422: exact fetch returns more than requested number of rows	at oracle.sysman.db.discovery.target.manager.TargetSaveManager.doSave(TargetSaveManager.java:163)	at oracle.sysman.db.discovery.ui.trainbean.guideddiscovery.DbGuidedDiscoveryTrainBean.doSave(DbGuidedDiscoveryTrainBean.java:138)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at com.sun.el.parser.AstValue.invoke(AstValue.java:254)	at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302)	at oracle.sysman.emSDK.view.util.AdfUtil.invokeEL(AdfUtil.java:641)	at oracle.sysman.sdkImpl.core.uifwk.ui.progress.ProgressBackingBean.pollListener(ProgressBackingBean.java:221)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at com.sun.el.parser.AstValue.invoke(AstValue.java:254)	at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302)	at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodExpression(UIXComponentBase.java:2016)	at org.apache.myfaces.trinidad.component.UIXPoll.broadcast(UIXPoll.java:98)	at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)	at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)	at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:111)	at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)	at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)	at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:168)	at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:510)	at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:171)	at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:115)	at javax.faces.component.UIViewRoot.broadcastEvents(Unknown Source)	at javax.faces.component.UIViewRoot.processApplication(Unknown Source)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._invokeApplication(LifecycleImpl.java:1074)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:402)	at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:225)	at javax.faces.webapp.FacesServlet.service(Unknown Source)	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)	at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)	at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)	at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:346)	at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:192)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.adf.view.page.editor.webapp.WebCenterComposerFilter.doFilter(WebCenterComposerFilter.java:117)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.adf.share.http.ServletADFFilter.doFilter(ServletADFFilter.java:77)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:105)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:502)	at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:502)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:327)	at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:229)	at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.sysman.eml.app.EMRepLoginFilter.doFilter(EMRepLoginFilter.java:800)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.sysman.eml.app.MBeanServerConnFilter.doFilter(MBeanServerConnFilter.java:43)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:202)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.sysman.emInternalSDK.core.model.utils.EntityManagerFilter.doFilter(EntityManagerFilter.java:46)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.sysman.eml.app.ContextInitFilter.doFilter(ContextInitFilter.java:561)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.adfinternal.view.faces.caching.filter.AdfFacesCachingFilterImpl.doFilter(AdfFacesCachingFilterImpl.java:136)	at oracle.adf.view.rich.webapp.AdfFacesCachingFilter.doFilter(AdfFacesCachingFilter.java:66)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.sysman.core.app.exception.EMRuntimeExceptionFilter.doFilter(EMRuntimeExceptionFilter.java:150)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:137)	at java.security.AccessController.doPrivileged(Native Method)	at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)	at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)	at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:120)	at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:217)	at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:81)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:220)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)	at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3436)	at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3402)	at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)	at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)	at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)	at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2285)	at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2201)	at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)	at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1575)	at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:255)	at weblogic.work.ExecuteThread.execute(ExecuteThread.java:311)	at weblogic.work.ExecuteThread.run(ExecuteThread.java:263)