Getting Java exception in webview log

Products

• CA Application Performance Management (APM / Wily / Introscope)

Issue/Introduction

This is to inform you that, we are getting some java exception in web view logs and we already removed the OSGI cache file but still getting same expection in logs. How to fix them?

[WARN] [org.eclipse.jetty.server.HttpChannel] /apm/page
org.owasp.esapi.errors.ConfigurationException: java.lang.reflect.InvocationTargetException Encoder class (org.owasp.esapi.reference.DefaultEncoder) CTOR threw exception.
        at org.owasp.esapi.util.ObjFactory.make(ObjFactory.java:129)
        at org.owasp.esapi.ESAPI.encoder(ESAPI.java:101)
        at com.wily.util.xss.XSSUtil.htmlAtrributeEncode(XSSUtil.java:20)
        at com.ca.apm.introscope.workstation.webapp.server.servlet.MessageServiceImpl.doGet(MessageServiceImpl.java:129)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1459)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
        at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1631)
        at com.wily.webserver.filter.RequestLocaleFilter.doFilter(RequestLocaleFilter.java:46)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webapps.common.filter.XSSFilter.doFilter(XSSFilter.java:32)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webapps.common.filter.ClickJackFilter.doFilter(ClickJackFilter.java:52)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webapps.common.filter.WebViewSSOFilter.doFilter(WebViewSSOFilter.java:251)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webapps.common.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:176)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webapps.common.filter.LocaleSwitch.doFilter(LocaleSwitch.java:52)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webapps.common.filter.BrowserFilter.doFilter(BrowserFilter.java:69)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webapps.common.filter.ContentSecurityPolicyFilter.doFilter(ContentSecurityPolicyFilter.java:71)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.webserver.filter.CustomResponseHeadersFilter.doFilter(CustomResponseHeadersFilter.java:51)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.webserver.filter.CustomResponseHeadersFilter.doFilter(CustomResponseHeadersFilter.java:51)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.webserver.filter.CustomResponseHeadersFilter.doFilter(CustomResponseHeadersFilter.java:51)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webapps.common.filter.ForwardedHeadersFilter.doFilter(ForwardedHeadersFilter.java:63)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:201)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at com.wily.introscope.webview.server.IntroscopeWebView$ConnectionFilter.doFilter(IntroscopeWebView.java:558)
        at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
        at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234)
        at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:763)
        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
        at org.eclipse.jetty.server.Server.handle(Server.java:516)
        at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487)
        at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479)
        at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
        at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
        at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:555)
        at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:410)
        at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:164)
        at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
        at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)
        at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
        at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)
        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)
        at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)
        at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.owasp.esapi.util.ObjFactory.make(ObjFactory.java:86)
        ... 84 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.owasp.esapi.logging.java.JavaLogFactory
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:264)
        at org.owasp.esapi.util.ObjFactory.loadClassByStringName(ObjFactory.java:158)
        at org.owasp.esapi.util.ObjFactory.make(ObjFactory.java:81)
        at org.owasp.esapi.ESAPI.logFactory(ESAPI.java:139)
        at org.owasp.esapi.ESAPI.getLogger(ESAPI.java:155)
        at org.owasp.esapi.reference.DefaultEncoder.<init>(DefaultEncoder.java:83)
        at org.owasp.esapi.reference.DefaultEncoder.getInstance(DefaultEncoder.java:67)
        ... 88 more
 [INFO] [WebView] MetricCountTypeViewerServer.fetchMetrics: time out

Environment

• Release: 10.8

Resolution

Followed the KB Article:

APM - How to clear the Introscope OSGI cache?

to clear the em and webview cache.

Followed the steps twice followed by em and webview restart.