[jolokia] some read requests fail

org.jboss.tools.jmx.core.JMXException: Error executing JMX request.
	at org.jboss.tools.jmx.jolokia.JolokiaConnectionWrapper.run(JolokiaConnectionWrapper.java:342)
	at org.jboss.tools.jmx.core.MBeanAttributeInfoWrapper.getValue(MBeanAttributeInfoWrapper.java:47)
	at org.jboss.tools.jmx.ui.internal.editors.AttributeDetails.update(AttributeDetails.java:216)
	at org.jboss.tools.jmx.ui.internal.editors.AttributeDetails.selectionChanged(AttributeDetails.java:184)
	at org.eclipse.ui.forms.DetailsPart$1.run(DetailsPart.java:269)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.forms.DetailsPart.showPage(DetailsPart.java:255)
	at org.eclipse.ui.forms.DetailsPart.update(DetailsPart.java:228)
	at org.eclipse.ui.forms.DetailsPart.selectionChanged(DetailsPart.java:213)
	at org.eclipse.ui.forms.ManagedForm.fireSelectionChanged(ManagedForm.java:125)
	at org.jboss.tools.jmx.ui.internal.editors.AttributesSection$1.selectionChanged(AttributesSection.java:57)
	at org.eclipse.jface.viewers.Viewer$1.run(Viewer.java:158)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173)
	at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:155)
	at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2191)
	at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1229)
	at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1258)
	at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:242)
	at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:236)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:405)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5219)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1340)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4553)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4143)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1121)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1022)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:687)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:604)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1519)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1492)
Caused by: java.lang.ClassCastException: org.jolokia.client.request.J4pReadResponse cannot be cast to java.util.List
	at org.jboss.tools.jmx.jolokia.internal.connection.JolokiaMBeanServerConnection.getAttributes(JolokiaMBeanServerConnection.java:224)
	at org.jboss.tools.jmx.jolokia.internal.connection.JolokiaMBeanServerConnection.getAttribute(JolokiaMBeanServerConnection.java:203)
	at org.jboss.tools.jmx.core.MBeanAttributeInfoWrapper$1.run(MBeanAttributeInfoWrapper.java:50)
	at org.jboss.tools.jmx.jolokia.JolokiaConnectionWrapper.run(JolokiaConnectionWrapper.java:338)
	... 48 more