Seretseab,

On 6/27/22 09:01, Kenaw, Seretseab wrote:
We just upgraded from Tomcat 9.0.12 to 9.0.62, and after the upgrade the new 
Tomcat version is throwing an error while deploying the ROOT module. All the 
ROOT module has is a redirection to a specific page when the user tries to 
access the website. Here is the error message, any help is appreciated.
SEVERE: Error deploying deployment descriptor [E:\EBX1\EBX 
Server\conf\Catalina\localhost\ROOT.xml]
java.lang.IllegalStateException: Error starting child
               at 
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:729)
               at 
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:698)
               at 
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:696)
               at 
org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:690)
               at 
org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1889)
               at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
               at 
java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
               at 
org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
               at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:118)
               at 
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:583)
               at 
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:473)
               at 
org.apache.catalina.startup.HostConfig.start(HostConfig.java:1618)
               at 
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:319)
               at 
org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
               at 
org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:423)
               at 
org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:366)
               at 
org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:946)
               at 
org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835)
               at 
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
               at 
org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396)
               at 
org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386)
               at 
java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
               at 
org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
               at 
java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:140)
               at 
org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919)
               at 
org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:263)
               at 
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
               at 
org.apache.catalina.core.StandardService.startInternal(StandardService.java:432)
               at 
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
               at 
org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:927)
               at 
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
               at org.apache.catalina.startup.Catalina.start(Catalina.java:772)
               at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
               at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
               at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
               at java.base/java.lang.reflect.Method.invoke(Method.java:566)
               at 
org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345)
               at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:476)
Caused by: org.apache.catalina.LifecycleException: Failed to start component 
[OpenIDConnectAuthenticator[StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]]
               at 
org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
               at 
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
               at 
org.apache.catalina.core.StandardPipeline.startInternal(StandardPipeline.java:176)
               at 
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
               at 
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5147)
               at 
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
               at 
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:726)
               ... 37 more

Your application is failing to start because of this error:

Caused by: java.lang.IllegalStateException: Impossible modulus [1]
               at 
org.apache.tomcat.util.codec.binary.Base64.decode(Base64.java:682)
               at 
org.apache.tomcat.util.codec.binary.BaseNCodec.decode(BaseNCodec.java:362)
               at 
org.apache.tomcat.util.codec.binary.Base64.decodeBase64(Base64.java:157)
               at 
org.apache.tomcat.util.codec.binary.Base64.decodeBase64(Base64.java:152)
               at 
org.apache.tomcat.util.codec.binary.Base64.decodeInteger(Base64.java:189)
               at 
org.bsworks.catalina.authenticator.oidc.JWKSet.<init>(JWKSet.java:58)
               at 
org.bsworks.catalina.authenticator.oidc.OPConfiguration$1.parseDocument(OPConfiguration.java:63)
               at 
org.bsworks.catalina.authenticator.oidc.OPConfiguration$1.parseDocument(OPConfiguration.java:1)
               at 
org.bsworks.catalina.authenticator.oidc.ConfigProvider.loadDocument(ConfigProvider.java:146)
               at 
org.bsworks.catalina.authenticator.oidc.ConfigProvider.get(ConfigProvider.java:106)
               at 
org.bsworks.catalina.authenticator.oidc.OPConfiguration.<init>(OPConfiguration.java:66)
               at 
org.bsworks.catalina.authenticator.oidc.OPConfigurationsProvider$1.parseDocument(OPConfigurationsProvider.java:40)
               at 
org.bsworks.catalina.authenticator.oidc.OPConfigurationsProvider$1.parseDocument(OPConfigurationsProvider.java:1)
               at 
org.bsworks.catalina.authenticator.oidc.ConfigProvider.loadDocument(ConfigProvider.java:146)
               at 
org.bsworks.catalina.authenticator.oidc.ConfigProvider.get(ConfigProvider.java:106)
               at 
org.bsworks.catalina.authenticator.oidc.OPConfigurationsProvider.getOPConfiguration(OPConfigurationsProvider.java:72)
               at 
org.bsworks.catalina.authenticator.oidc.BaseOpenIDConnectAuthenticator.startInternal(BaseOpenIDConnectAuthenticator.java:765)
               at 
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

Your authentication component (OpenID from BSWorks?) appears to be getting confused while loading its configuration. It is using Tomcat's base64 decoder in a way that appears to be incorrect.

This is not likely to be a problem in Tomcat or Tomcat's base64 decoder (which is actually commons-codec but re-packaged into a shaded JAR to avoid conflicts with application libraries).

I would take a close look at your OpenID configuration and make sure it looks correct. I would specifically look at your JWKs to make sure they are in the expected format.

-chris

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