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https://issues.apache.org/jira/browse/KNOX-3317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on KNOX-3317 started by Sandor Molnar.
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> Fix NPE when no token metadata headers defined for ICEBERG-REST
> ---------------------------------------------------------------
>
> Key: KNOX-3317
> URL: https://issues.apache.org/jira/browse/KNOX-3317
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Affects Versions: 3.0.0
> Reporter: Sandor Molnar
> Assignee: Sandor Molnar
> Priority: Critical
> Fix For: 3.0.0
>
>
> NOX-3279 introduces the ability to apply custom headers Knox dispatches to
> ICEBERG-REST.
> The issue is that {{service.xml}} doesn't contain any dispatch element with `
> token-metadata-headers` which ends up in the following runtime exception:
>
> {noformat}
> Caused by: java.lang.NullPointerException: Cannot invoke
> "String.split(String)" because "tokenMetadataHeadersConfig" is null at
> org.apache.knox.gateway.service.restcatalog.TokenMetadataHeaderHandler.getMetadataHeaderConfig(TokenMetadataHeaderHandler.java:93)
> ~[gateway-service-restcatalog-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT] at
> org.apache.knox.gateway.service.restcatalog.TokenMetadataHeaderHandler.<init>(TokenMetadataHeaderHandler.java:67)
> ~[gateway-service-restcatalog-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT] at
> org.apache.knox.gateway.service.restcatalog.RestCatalogHaDispatch.<init>(RestCatalogHaDispatch.java:36)
> ~[gateway-service-restcatalog-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT] at
> jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method) ~[?:?] at
> jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
> ~[?:?] at
> jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> ~[?:?] at
> java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
> ~[?:?] at java.lang.reflect.Constructor.newInstance(Constructor.java:481)
> ~[?:?] at
> org.apache.knox.gateway.dispatch.GatewayDispatchFilter.newInstanceFromName(GatewayDispatchFilter.java:226)
> ~[gateway-spi-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT] at
> org.apache.knox.gateway.dispatch.GatewayDispatchFilter.init(GatewayDispatchFilter.java:75)
> ~[gateway-spi-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT] at
> org.apache.knox.gateway.GatewayFilter$Holder.getInstance(GatewayFilter.java:421)
> ~[gateway-server-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]{noformat}
>
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