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@ -683,7 +683,6 @@ public class HeapReader {
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* @throws IOException
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*/
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public CloneableIterator<byte[]> keys(final boolean up, final boolean rotating) throws IOException {
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assert (this.index != null) : "index == null; closeDate=" + this.closeDate + ", now=" + new Date();
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if (this.index == null) {
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log.severe("this.index == null in keys(); closeDate=" + this.closeDate + ", now=" + new Date() + this.heapFile == null ? "" : (" file = " + this.heapFile.toString()));
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return null;
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