IllegalAccessError: Could not instantiate Seam component
I have a stateless session bean called UploadService that handles file uploads. I was able to use it with no problems for days till I added few setters/getters and a method to scale the uploaded image.
After login and once a reference of uploadService is encountered, an instantiation exception is thrown that is caused by " IllegalAccessError: class XYZ cannot access its superinterface com.truerunes.core.Upload"
23:09:17,761 ERROR [STDERR] Oct 12, 2007 11:09:17 PM com.sun.facelets.FaceletViewHandler handleRenderException SEVERE: Error Rendering View[/artwork.xhtml] org.jboss.seam.InstantiationException: Could not instantiate Seam component: uploadService at org.jboss.seam.Component.newInstance(Component.java:1971) at org.jboss.seam.Component.getInstance(Component.java:1874) at org.jboss.seam.Component.getInstance(Component.java:1841) at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64) at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) at org.jboss.el.parser.AstValue.getValue(AstValue.java:63) at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71) at javax.faces.component.UIOutput.getValue(UIOutput.java:173) at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:189) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:320) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:200) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836) at org.jboss.seam.ui.util.cdk.RendererBase.renderChild(RendererBase.java:190) at org.jboss.seam.ui.util.cdk.RendererBase.renderChildren(RendererBase.java:166) at org.jboss.seam.ui.renderkit.ValidateAllRendererBase.doEncodeChildren(ValidateAllRendererBase.java:33) at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.java:92) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886) at javax.faces.render.Renderer.encodeChildren(Renderer.java:137) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:577) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:150) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.RuntimeException: by java.lang.IllegalAccessError: class org.javassist.tmp.java.lang.Object_$$_javassist_7 cannot access its superinterface com.truerunes.core.Upload at org.jboss.seam.util.ProxyFactory.createClass(ProxyFactory.java:190) at org.jboss.seam.Component.createProxyFactory(Component.java:2261) at org.jboss.seam.Component.getProxyFactory(Component.java:1376) at org.jboss.seam.Component.wrap(Component.java:1367) at org.jboss.seam.Component.instantiateSessionBean(Component.java:1289) at org.jboss.seam.Component.instantiate(Component.java:1274) at org.jboss.seam.Component.newInstance(Component.java:1967) ... 72 more Caused by: javassist.CannotCompileException: by java.lang.IllegalAccessError: class org.javassist.tmp.java.lang.Object_$$_javassist_7 cannot access its superinterface com.truerunes.core.Upload at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:165) at org.jboss.seam.util.ProxyFactory.createClass(ProxyFactory.java:186) ... 78 more Caused by: java.lang.IllegalAccessError: class org.javassist.tmp.java.lang.Object_$$_javassist_7 cannot access its superinterface com.truerunes.core.Upload at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at sun.reflect.GeneratedMethodAccessor100.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at javassist.util.proxy.FactoryHelper.toClass2(FactoryHelper.java:177) at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:159)
@Local
interface Upload {
byte[] getData();
void setData(byte[] data);
String getContentType();
void setContentType(String contentType);
String getFileName();
void setFileName(String fileName);
String getTitle();
void setTitle(String title);
int getSize();
void setSize(int size);
void upload();
}
I did not include the scale code since it is a bit verbose and might be irrelevant to the problem. However, you can find the imports used:
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import javax.ejb.Stateless;
import javax.imageio.ImageIO;
import javax.persistence.EntityManager;
import org.jboss.seam.annotations.Factory;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Out;
import org.jboss.seam.annotations.security.Restrict;
import org.jboss.seam.log.Log;
@Stateless
@Name("uploadService")
public class UploadService implements Upload {
@Logger Log log;
@In(create = true, value = "entityManager")
private EntityManager em;
private byte[] data;
private String contentType;
private String fileName;
private String title;
private int size;
// setters/getters omitted.
@Restrict("#{s:hasRole('gsadmin')}")
public void upload() {
}
private byte[] scale(){
}
}
here is the page that references the uploadService component:
<h:form id="registration-form" enctype="multipart/form-data">
<span class="error"><h:messages globalOnly="true"/></span>
<s:validateAll>
<fieldset>
<legend>Enter file to upload</legend>
<div>
<h:outputLabel for="title" value="Title"/>
<h:inputText styleClass="input-field" id="title" required="true"
value="#{uploadService.title}" size="40" maxlength="40"/>
<h:message styleClass="error" for="title"/>
</div>
<div>
<h:outputLabel for="artwork" value="Artwork"/>
<s:fileUpload id="artwork" styleClass="input-field"
data="#{uploadService.data}" accept="image/*"
contentType="#{uploadService.contentType}"
fileName="#{uploadService.fileName}" fileSize="#{uploadService.size}"
size="40" maxlength="40" required="true"/>
<h:message styleClass="error" for="artwork"/>
</div>
</fieldset>
<div class="submit-buttons">
<h:commandButton value="Upload"
action="#{uploadService.upload}" id="registerButton"/>
</div>
</s:validateAll>
</h:form>
I tried updating from JDK 5 to JDK 6, rebuilding and removing the old deployed archive but the problem is still there.
