Class loader error deploying to Wildfly

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Brian Heaphy

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Apr 23, 2020, 9:29:44 AM4/23/20

to modelmapper

Hi,

I'm trying to deploy a spring boot application containing a ModelMapper bean, which I have defined in a @Configuration file.

The mapper works fine when deployed on a local Tomcat server, but when being deployed to a Wildfly instance I receive the following errors:

Caused by: java.lang.NoClassDefFoundError: sun/misc/Unsafe

at org.modelmapper.internal.typetools.TypeResolver$1.run(TypeResolver.java:67)

at org.modelmapper.internal.typetools.TypeResolver$1.run(TypeResolver.java:64)

at java.security.AccessController.doPrivileged(Native Method)

at org.modelmapper.internal.typetools.TypeResolver.<clinit>(TypeResolver.java:64)

at org.modelmapper.internal.TypeResolvingList.addElement(TypeResolvingList.java:124)

at org.modelmapper.internal.TypeResolvingList.add(TypeResolvingList.java:52)

at org.modelmapper.internal.valueaccess.ValueAccessStore.<init>(ValueAccessStore.java:33)

at org.modelmapper.internal.InheritingConfiguration.<init>(InheritingConfiguration.java:76)

at org.modelmapper.ModelMapper.<init>(ModelMapper.java:54)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)

... 32 more

Caused by: java.lang.ClassNotFoundException: sun.misc.Unsafe from [Module "apps.lib:main" from local module loader @4d88c779 (finder: local module finder @31c76f6d (roots: C:\UI\wildfly\modules,C:\UI\wildfly\modules\system\layers\base))]

at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:213)

at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:459)

at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:408)

at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:389)

at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:134)