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    Two or more classes in the same package with different signature data, especially when they come from different JARs that have signatures signed with different certificates. Make sure all JARs are signed using the same certificate.

Solutions on the web

via SpringSource Issue Tracker by Kris De Volder (c), 2 years ago
class "javax.servlet.AsyncContext"'s signer information does not match signer information of other classes in the same package
via SpringSource Issue Tracker by Kris De Volder (c), 1 year ago
class "javax.servlet.AsyncContext"'s signer information does not match signer information of other classes in the same package
via Stack Overflow by kappolo
, 2 years ago
class "javax.servlet.AsyncContext"'s signer information does not match signer information of other classes in the same package
via GitHub by robfletcher
, 2 years ago
class "org.junit.Rule"'s signer information does not match signer information of other classes in the same package
via Stack Overflow by sfosdal
, 2 years ago
class "javax.servlet.FilterRegistration"'s signer information does not match signer information of other classes in the same package
via Stack Overflow by Pere Villega
, 2 years ago
class "com.sun.mail.util.PropUtil"'s signer information does not match signer information of other classes in the same package
java.lang.SecurityException: class "javax.servlet.AsyncContext"'s signer information does not match signer information of other classes in the same package	at java.lang.ClassLoader.checkCerts(ClassLoader.java:806)	at java.lang.ClassLoader.preDefineClass(ClassLoader.java:487)	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:625)	at java.lang.ClassLoader.defineClass(ClassLoader.java:615)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)	at java.net.URLClassLoader.access$000(URLClassLoader.java:58)	at java.net.URLClassLoader$1.run(URLClassLoader.java:197)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)	at java.lang.Class.getDeclaredMethods0(Native Method)	at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)	at java.lang.Class.getDeclaredMethods(Class.java:1791)	at org.codehaus.groovy.vmplugin.v5.Java5.configureClassNode(Java5.java:356)	at org.codehaus.groovy.ast.ClassNode.lazyClassInit(ClassNode.java:350)	at org.codehaus.groovy.ast.ClassNode.getMethods(ClassNode.java:471)	at org.codehaus.groovy.grails.compiler.injection.AbstractGrailsArtefactTransformer.performInjection(AbstractGrailsArtefactTransformer.java:121)	at org.codehaus.groovy.grails.compiler.injection.GrailsAwareInjectionOperation.call(GrailsAwareInjectionOperation.java:140)	at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1138)	at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:610)	at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:588)	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:565)	at org.codehaus.jdt.groovy.internal.compiler.ast.GroovyCompilationUnitDeclaration.processToPhase(GroovyCompilationUnitDeclaration.java:171)	at org.codehaus.jdt.groovy.internal.compiler.ast.GroovyCompilationUnitDeclaration.analyseCode(GroovyCompilationUnitDeclaration.java:2077)	at org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:826)	at org.eclipse.jdt.internal.compiler.ProcessTaskManager.run(ProcessTaskManager.java:137)	at java.lang.Thread.run(Thread.java:662)