Use getMessage() to retrieve a concatenation of the composite exceptions.
getMessage()
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RxJavaPlugins.getInstance().getErrorHandler().handleError(e); T result = resultFunction.call(e); child.onNext(result); } catch (Throwable x) { child.onError(new CompositeException(Arrays.asList(e, x))); return; } child.onCompleted(); }
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if (es.isEmpty()) { actual.onCompleted(); } else if (es.size() == 1) { actual.onError(es.poll()); } else { actual.onError(new CompositeException(es)); } } else { actual.onCompleted(); } } else {