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Published Jun. 30, 2025

Trying to save a form with many fields fails showing a blank page

Written By

Jorge García Jiménez

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Issue

  • I'm creating a new form that has numerous fields.
  • At some point when I try to save the form it won't let me add any more fields: when I try to save it, a blank page appears and the error below is shown in the logs: 
    PortletServlet:117] null
    javax.portlet.PortletException: java.lang.IllegalStateException: The property "serializedFormContext" is required
    at com.liferay.portal.kernel.portlet.bridges.mvc.BaseTransactionalMVCActionCommand.processAction(BaseTransactionalMVCActionCommand.java:58) ~[portal-kernel.jar:?]
    ....
    Caused by: java.lang.IllegalStateException: The property "serializedFormContext" is required
    at com.liferay.dynamic.data.mapping.form.builder.internal.context.DDMFormContextToDDMForm.deserialize(DDMFormContextToDDMForm.java:77) ~[?:?]
  • Is there any limitation regarding the number of fields in a form?

Environment

  • Liferay DXP 7.4

Resolution

  • This is a known issue, but there's an existing workaround.
  • Modify default value of the property com.liferay.portal.kernel.upload.FileItem.threshold.size in portal-ext.properties. Its default value is 1048576 (1 MB). Increase it to 2097152 (2 MB) or more.
  • If the new value is higher than 2 MB, and you are using tomcat, you also have to modify server.xml file increasing the maxPostSize value.  
    <Connector port="8080" protocol="HTTP/1.1"
                 connectionTimeout="20000"
                 redirectPort="8443" URIEncoding="UTF-8"
                 maxPostSize="8000000" />

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