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Editorial Team
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Asked: 2026-05-31T04:38:06+00:00

I am working on a jsf migration project. In the process of migration to

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I am working on a jsf migration project. In the process of migration to jsf 2.0, I have replaced myfaces-api-1.1.5 and myfaces-impl1.1.5 with myfaces-impl(2.1.6). I got the following Exception.

at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:121)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1824)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1759)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_22]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_22]
    at java.lang.Thread.run(Thread.java:662) [:1.6.0_22]
Caused by: java.lang.NoClassDefFoundError: org/apache/myfaces/el/ValueBindingImpl
    at java.lang.Class.getDeclaredConstructors0(Native Method) [:1.6.0_22]
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389) [:1.6.0_22]
    at java.lang.Class.getConstructor0(Class.java:2699) [:1.6.0_22]
    at java.lang.Class.getConstructor(Class.java:1657) [:1.6.0_22]
    at org.jboss.as.web.deployment.jsf.JsfManagedBeanProcessor.deploy(JsfManagedBeanProcessor.java:105)
    at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:115)
    ... 5 more
Caused by: java.lang.ClassNotFoundException: org.apache.myfaces.el.ValueBindingImpl from [Module "deployment.ASSET.war:main" from Service Module Loader]
    at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:191)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:361)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:333)
    at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:310)
    at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:103)
    ... 11 more

When I try to find out ValueBindingImpl in the jar files, I am not able to find org.apache.myfaces.el.ValueBindingImpl in the myfaces-impl(2.1.6).. Is there any alternative?

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1 Answer

  1. Editorial Team

    It seems that your code is using MyFaces 1.1 specific implementation classes instead of the JSF 1.1 API classes. For example,

    ValueBinding binding = new ValueBindingImpl(...);

    instead of

    ValueBinding binding = application.createValueBinding(...);

    You’d need to fix the code to remove MyFaces 1.1 specific implementation classes.

    Note that ValueBinding is deprecated since JSF 1.2, if you can, replace by ValueExpression.

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