JON fails to display metric graph and logs 'IllegalArgumentException: lowValue (nnn) is not less than or equal to value (nnn).'

Issue

• Server log contains:

java.lang.IllegalArgumentException: lowValue (270.0) is not less than or equal to value (135.13888888888889).

• The following exception is logged in the server.log:

WARN  [org.rhq.coregui.server.gwt.MeasurementDataGWTServiceImpl] (http-/0.0.0.0:8443-9) Sending exception to client: [1401794902338] : javax.ejb.EJBException: java.lang.IllegalArgumentException: lowValue (270.0) is not less than or equal to value (135.13888888888889).
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInNoTx(CMTTxInterceptor.java:191) [jboss-as-ejb3-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInNoTx(CMTTxInterceptor.java:237) [jboss-as-ejb3-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.notSupported(CMTTxInterceptor.java:299) [jboss-as-ejb3-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:212) [jboss-as-ejb3-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]
    ...

Caused by: java.lang.IllegalArgumentException: lowValue (270.0) is not less than or equal to value (135.13888888888889).
    at org.rhq.core.domain.measurement.composite.MeasurementDataNumericHighLowComposite.<init>(MeasurementDataNumericHighLowComposite.java:49) [rhq-core-domain-ejb3.jar:4.9.0.JON320GA-redhat-1]
    at org.rhq.server.metrics.MetricsServer.createComposites(MetricsServer.java:375) [rhq-server-metrics-4.9.0.JON320GA.jar:4.9.0.JON320GA]
    at org.rhq.server.metrics.MetricsServer.findDataForResource(MetricsServer.java:182) [rhq-server-metrics-4.9.0.JON320GA.jar:4.9.0.JON320GA]
    at org.rhq.enterprise.server.measurement.MeasurementDataManagerBean.findDataForResource(MeasurementDataManagerBean.java:844) [rhq-server.jar:4.9.0.JON320GA-redhat-1]
    ...

• No graph is displayed
• Unable to display metrics