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  1.  
  2. import java.util.stream.Stream;
  3.  
  4. class Ideone
  5. {
  6. 	public static void main (String[] args) throws java.lang.Exception
  7. 	{
  8. 		Stream.of("")
  9. 		  .flatMap(x -> Stream.of("").onClose(() -> System.out.println("closed")))
  10. 		  .forEach(x -> { throw new RuntimeException(); });
  11. 	}
  12. }
Runtime error #stdin #stdout #stderr 0.08s 33820KB
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stdin
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Standard input is empty
stdout
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closed
stderr
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Exception in thread "main" java.lang.RuntimeException
	at Ideone.lambda$main$2(Main.java:10)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
	at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411)
	at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658)
	at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:274)
	at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
	at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
	at Ideone.main(Main.java:10)
https://ideone.com/U6IpqL
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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