./gradlew -Ppublishing -PjavaLinkageArtifactIds=beam-sdks-java-core,beam-sdks-java-io-google-cloud-platform,beam-runners-google-cloud-dataflow-java,beam-sdks-java-io-hadoop-format :checkJavaLinkage
Configuration on demand is an incubating feature.
> Task :checkJavaLinkage
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.lang.NullPointerException
at com.google.cloud.tools.opensource.classpath.IncompatibleLinkageProblem.formatSymbolProblem(IncompatibleLinkageProblem.java:36)
at com.google.cloud.tools.opensource.classpath.LinkageProblem.lambda$formatLinkageProblems$4(LinkageProblem.java:146)
at com.google.common.collect.RegularImmutableMap.forEach(RegularImmutableMap.java:185)
at com.google.cloud.tools.opensource.classpath.LinkageProblem.formatLinkageProblems(LinkageProblem.java:138)
at com.google.cloud.tools.opensource.classpath.LinkageCheckerMain.main(LinkageCheckerMain.java:114)
> Task :checkJavaLinkage FAILED
