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  1. ,

    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 GitHub by wattdjaun
, 1 year ago
class "javax.servlet.http.HttpUpgradeHandler"'s si gner information does not match signer information of other classes in the same package
via GitHub by kermitas
, 2 years ago
class "javax.servlet.HttpConstraintElement"'s signer information does not match signer information of other classes in the same package
via activeintelligence.org by Unknown author, 2 years ago
class "javax.servlet.FilterRegistration"'s signer information does not match signer information of other classes in the same package
via eclipse.org by Unknown author, 2 years ago
class " .PackageHelper"'s signer information does not match signer information of other classes in the same package
via redhat.com by Unknown author, 1 year ago
class "javax.servlet.FilterRegistration"'s signer information does not match signer information of other classes in the same package
via GitHub by cbvoxel
, 2 years ago
class "javax.servlet.ServletRegistration"'s signer information does not match signer information of other classes in the same package
java.lang.SecurityException: class "javax.servlet.http.HttpUpgradeHandler"'s si
gner information does not match signer information of other classes in the same
package	at java.lang.ClassLoader.checkCerts(ClassLoader.java:898)	at java.lang.ClassLoader.preDefineClass(ClassLoader.java:668)	at java.lang.ClassLoader.defineClass(ClassLoader.java:761)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at org.apache.coyote.http11.AbstractHttp11Protocol.createProcessor(AbstractHttp11Protocol.java:636)	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:788)	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410)	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)	at java.lang.Thread.run(Thread.java:745)