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In all forms in the case management module, check if the "save" or "ok" button are protected against user double-clicking on that.

For example, case edit page, if the user double clicks on the save button, an error happens in the server side:

org.jboss.seam.RequiredException 
@In attribute requires non-null value: caseBDHome.caseHome 
org.jboss.seam.RequiredException: @In attribute requires non-null value: caseBDHome.caseHome 
at org.jboss.seam.Component.getValueToInject(Component.java:2361) 
at org.jboss.seam.Component.injectAttributes(Component.java:1739) 
at org.jboss.seam.Component.inject(Component.java:1557) 
at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:61) 
at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) 
at org.jboss.seam.transaction.TransactionInterceptor$1.work(TransactionInterceptor.java:97) 

Solution:

Check all forms and for all command button, implement the java script bellow:

Save button:

onclick="if (!disableButton(this)) return false;" 

Cancel button

onclick="disableButton(this)"