java.lang.NullPointerException: This exception has no message.

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via GitHub by nevillelyh
, 11 months ago
This exception has no message.
java.lang.NullPointerException:
at java.util.AbstractMap.hashCode(AbstractMap.java:530)
at java.util.Arrays.hashCode(Arrays.java:4146)
at java.util.Objects.hash(Objects.java:128)
at com.google.cloud.dataflow.sdk.util.WindowedValue$ValueInGlobalWindow.hashCode(WindowedValue.java:254)
at java.util.HashMap.hash(HashMap.java:338)
at java.util.HashMap.get(HashMap.java:556)
at com.google.cloud.dataflow.sdk.repackaged.com.google.common.collect.AbstractMapBasedMultimap.put(AbstractMapBasedMultimap.java:193)
at com.google.cloud.dataflow.sdk.repackaged.com.google.common.collect.AbstractSetMultimap.put(AbstractSetMultimap.java:128)
at com.google.cloud.dataflow.sdk.repackaged.com.google.common.collect.HashMultimap.put(HashMultimap.java:49)

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