Error generating metadata when installing Shibboleth IdP v 4.0.1

[Feinstein, Moses]

I am running into metadata generation issue when building IdP v4.0.1.

All installation files seem to be created just fine except for idp metadata, build throws an error and /opt/shibboleth-idp/metadata/idp-metadata.xml file is empty

Do you know why this may be occurring?

Environment:
Centos 8
Red Hat OpenJDK 11
Running as root.
sh install.sh -Didp.keysize=2048


INFO [net.shibboleth.idp.installer.V4Install:433] - Creating Metadata to /opt/shibboleth-idp/metadata/idp-metadata.xml

BUILD FAILED
/opt/shibboleth-identity-provider-4.0.1/bin/build.xml:20: java.lang.NullPointerException
        at net.shibboleth.idp.installer.metadata.impl.MetadataGeneratorImpl.writeKeyDescriptors(MetadataGeneratorImpl.java:597)
        at net.shibboleth.idp.installer.metadata.impl.MetadataGeneratorImpl.writeKeyDescriptors(MetadataGeneratorImpl.java:561)
        at net.shibboleth.idp.installer.metadata.impl.MetadataGeneratorImpl.writeIDPSSO(MetadataGeneratorImpl.java:334)
        at net.shibboleth.idp.installer.metadata.impl.MetadataGeneratorImpl.generate(MetadataGeneratorImpl.java:263)
        at net.shibboleth.idp.installer.V4Install.generateMetadata(V4Install.java:442)
        at net.shibboleth.idp.installer.V4Install.execute(V4Install.java:110)
        at net.shibboleth.idp.installer.ant.impl.V4InstallTask.execute(V4InstallTask.java:95)
        at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
        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.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
        at org.apache.tools.ant.Task.perform(Task.java:350)
        at org.apache.tools.ant.Target.execute(Target.java:449)
        at org.apache.tools.ant.Target.performTasks(Target.java:470)
        at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1391)
        at org.apache.tools.ant.Project.executeTarget(Project.java:1364)
        at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
        at org.apache.tools.ant.Project.executeTargets(Project.java:1254)
        at org.apache.tools.ant.Main.runBuild(Main.java:830)
        at org.apache.tools.ant.Main.startAnt(Main.java:223)
        at org.apache.tools.ant.Main.start(Main.java:190)
        at org.apache.tools.ant.Main.main(Main.java:274)



Moses Feinstein

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