Java.lang.NoClassDefFoundError: oracle/dfw/impl/common/TempFileManager

After successfully installing second OAM application on the server which already have an up and running OAM application, while starting the Admin and OAM Managed server  , i got below error in log file under $DOMAIN_HOME/servers/oam_server1/logs/oam_server1.out Caused by: java.lang.NoClassDefFoundError: oracle/dfw/impl/common/TempFileManager at oracle.dfw.spi.portable.PortableDiagnosticsFrameworkProvider.init(PortableDiagnosticsFrameworkProvider.java:120) at oracle.dfw.framework.DiagnosticsFramework.initializeProvider(DiagnosticsFramework.java:98) at oracle.dfw.framework.DiagnosticsFramework.<init>(DiagnosticsFramework.java:53) at oracle.dfw.spi.portable.JMXDiagnosticsConfig.load(JMXDiagnosticsConfig.java:85) at oracle.as.jmx.framework.util.ConfigMBeanSupport.preRegister(ConfigMBeanSupport.java:195) at oracle.dfw.spi.portable.JMXDiagnosticsConfig.preRegister(JMXDiagnosticsConfig.java:163) at oracle.as.jmx.framework.standardmbeans.spi.OracleStandardEmitterMBean.doPreRegister  Reason: […]