java.util.ConcurrentModificationException: This exception has no message.

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This exception has no message.
via GitHub by ivilata
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This exception has no message.
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This exception has no message.
via GitHub by ivilata
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This exception has no message.
java.util.ConcurrentModificationException:
at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1545)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
at org.meridor.perspective.openstack.ListProjectsOperation.getFetchMap(ListProjectsOperation.java:82)
at org.meridor.perspective.openstack.ListProjectsOperation.perform(ListProjectsOperation.java:59)
at org.meridor.perspective.worker.operation.impl.OperationProcessorImpl.consumeImpl(OperationProcessorImpl.java:42)
at org.meridor.perspective.worker.operation.impl.OperationProcessorImpl.consume(OperationProcessorImpl.java:32)
at org.meridor.perspective.worker.fetcher.impl.ProjectsFetcher.fetch(ProjectsFetcher.java:66)
at org.meridor.perspective.worker.fetcher.impl.BaseFetcher.lambda$null$14(BaseFetcher.java:54)

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