<style>
.ui-panel {
margin: 15px;
width: 300px;
}
</style>
<div class="card">
<p:panel id="pnl" header="Draggable Panel">
<h:outputText value="A regular p:panel."/>
</p:panel>
<p:draggable for="pnl"/>
<p:panel id="handlepnl" header="Handle">
<h:outputText value="Can only be dragged with my header."/>
</p:panel>
<p:draggable for="handlepnl" handle=".ui-panel-titlebar"/>
<p:panel id="hpnl" header="Horizontal Only">
<h:outputText value="Can only be dragged horizontally."/>
</p:panel>
<p:draggable for="hpnl" axis="x"/>
<p:panel id="vpnl" header="Vertical Only">
<h:outputText value="Can only be dragged vertically"/>
</p:panel>
<p:draggable for="vpnl" axis="y"/>
<p:panel id="rpnl" header="Revert">
<h:outputText value="Will be reverted back to my original position"/>
</p:panel>
<p:draggable for="rpnl" revert="true"/>
<p:panel id="opnl" header="Opacity">
<h:outputText value="Opacity is lower when I'm being dragged"/>
</p:panel>
<p:draggable for="opnl" opacity="0.3"/>
<p:panel id="gpnl" header="Grid">
<h:outputText value="Dragged in grid mode"/>
</p:panel>
<p:draggable for="gpnl" grid="20,40"/>
<p:outputPanel id="restrictPanel" layout="block"
style="width:400px;height:200px;border:1px solid var(--surface-d);margin-bottom:20px">
<p:panel id="conpnl" header="Restricted">
<h:outputText value="Restricted to my parent's boundaries"/>
</p:panel>
</p:outputPanel>
<p:draggable for="conpnl" containment="parent"/>
<p:graphicImage id="pic" name="demo/images/nature/nature10.jpg"/>
<p:draggable for="pic"/>
</div>
Session expired
Reloading page
Message:
StackTrace: java.util.ConcurrentModificationException at java.base/java.util.HashMap.computeIfAbsent(Unknown Source) at org.primefaces.component.lifecycle.LifecyclePhaseListener.getPhaseInfo(LifecyclePhaseListener.java:51) at org.primefaces.component.lifecycle.LifecyclePhaseListener.beforePhase(LifecyclePhaseListener.java:69) at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersBefore(PhaseListenerManager.java:78) at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:160) at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:125) at jakarta.faces.lifecycle.LifecycleWrapper.execute(LifecycleWrapper.java:61) at jakarta.faces.webapp.FacesServlet.service(FacesServlet.java:223) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) at org.primefaces.webapp.filter.NoCacheFilter.doFilter(NoCacheFilter.java:50) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) at org.primefaces.webapp.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) at org.apache.openejb.server.httpd.EEFilter.doFilter(EEFilter.java:67) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:397) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:905) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.base/java.lang.Thread.run(Unknown Source)