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    Check if the version of resteasy is using is the same JBoss is using. To find it out, search for resteasy-jaxrs* in JBoss/Wildfly directory and at your pom.xml.

Solutions on the web

via jboss.org by Unknown author, 2 years ago
java.lang.NoClassDefFoundError: com/sun/imageio/spi/FileImageInputStreamSpi
via jboss.org by Unknown author, 2 years ago
java.lang.NoClassDefFoundError: com/sun/imageio/spi/FileImageInputStreamSpi
via jboss.org by Unknown author, 1 year ago
java.lang.NoClassDefFoundError: com/sun/imageio/spi/FileImageInputStreamSpi
via GitHub by sbalasub
, 2 years ago
java.lang.NoClassDefFoundError: com/sun/imageio/spi/FileImageInputStreamSpi
java.lang.ClassNotFoundException: com.sun.imageio.spi.FileImageInputStreamSpi from [Module "deployment.geoserver.war:main" from Service Module Loader] 	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)	at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)	at it.geosolutions.imageio.stream.input.spi.FileImageInputStreamExtImplSpi.onRegistration(FileImageInputStreamExtImplSpi.java:106)	at javax.imageio.spi.SubRegistry.registerServiceProvider(ServiceRegistry.java:715)	at javax.imageio.spi.ServiceRegistry.registerServiceProvider(ServiceRegistry.java:302)	at javax.imageio.spi.IIORegistry.registerApplicationClasspathSpis(IIORegistry.java:211)	at javax.imageio.spi.IIORegistry.(IIORegistry.java:138)	at javax.imageio.spi.IIORegistry.getDefaultInstance(IIORegistry.java:159)	at org.geotools.image.io.ImageIOExt.allowNativeCodec(ImageIOExt.java:170)	at org.geoserver.GeoserverInitStartupListener.contextInitialized(GeoserverInitStartupListener.java:117)	at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:3392)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:3850)	at org.jboss.as.web.deployment.WebDeploymentService.start(WebDeploymentService.java:77)	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.runWorker(ThreadPoolExecutor.java:1110)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)	at java.lang.Thread.run(Thread.java:722)