<artifactId>default</artifactId>
        <version>3.0</version>
        <configuration>
          <defaults><!-- equivalent to combine.children="merge" combine.self="merge" -->
            <!-- merge the content of the configuration element according to element name -->
            <parent>child</parent>
            <child>child</child>
            <parent-only>parent</parent-only>

        String dateBefore = gregorianDate();

        RemoteSnapshotMetadata metadata =
                new RemoteSnapshotMetadata(new DefaultArtifact("a:b:1-SNAPSHOT"), new Date(), null);
        metadata.merge(new Metadata());

        String dateAfter = gregorianDate();

        String ts = metadata.metadata.getVersioning().getSnapshot().getTimestamp();
        String datePart = DATE_FILTER.matcher(ts).replaceAll("");

            parent.appendChild(chapter);
            chapter.setAttribute("id", classDoc.getId());
            descriptionRenderer.renderTo(classDoc, chapter);
            merge(classDoc, chapter);
        } finally {
            listener.finish();
        }
    }

    void merge(ClassDoc classDoc, Element chapter) {
        for (ClassDocMemberRenderer memberRenderer : memberRenderers) {
            memberRenderer.renderSummaryTo(classDoc, chapter);

    Iterator<C> merged =
        mergeSorted(
            transform(backingMap.values(), (Map<C, V> input) -> input.keySet().iterator()),
            comparator);

    return new AbstractIterator<C>() {
      @Nullable C lastValue;

      @Override
      protected @Nullable C computeNext() {
        while (merged.hasNext()) {
          C next = merged.next();

              <include>org.apache.maven.toolchain.merge</include>
            </includes>
            <excludes>
              <!--              <exclude>org.apache.maven.toolchain.building.DefaultToolchainsBuilder#DefaultToolchainsBuilder():CONSTRUCTOR_REMOVED</exclude>-->

     * and will be merged, but overlapping ranges will cause an exception when {@link #build()} is
     * called.
     */
    @CanIgnoreReturnValue
    public Builder<C> addAll(RangeSet<C> ranges) {
      return addAll(ranges.asRanges());
    }

    /**
     * Add all of the specified ranges to this builder. Adjacent ranges are permitted and will be

        runner.refresh();

        // Verify the item was updated (should have merged frequencies)
        GetResponse getResponse =
                runner.client().prepareGet().setIndex(suggester.getIndex()).setId(item.getId()).get(TimeValue.timeValueSeconds(30));
        assertTrue(getResponse.isExists());
        // The actual frequency value would depend on merge logic
    }

    @Test

			tq = tq.merge(q.QStats)
		}

		for arn, stat := range bucketStat.ReplicationStats.Stats {
			oldst := stats[arn]
			if oldst == nil {
				oldst = &BucketReplicationStat{
					XferRateLrg: newXferStats(),
					XferRateSml: newXferStats(),
				}
			}
			fstats := stat.FailStats.merge(oldst.FailStats)
			lrg := oldst.XferRateLrg.merge(*stat.XferRateLrg)

			want: sizeHistogram{0: 10, 5: 20, 6: 3, 7: 4, 8: 5, 9: 6, 10: 7},
		},
	}
	for i, test := range tests {
		t.Run(fmt.Sprintf("test-%d", i), func(t *testing.T) {
			var got sizeHistogram
			got.mergeV1(test.v)
			if got != test.want {
				t.Fatalf("Expected %v but got %v", test.want, got)
			}
		})
	}

mapreduce.job.reduce.slowstart.completedmaps=0.99 # 99% map, then reduce
mapreduce.reduce.shuffle.input.buffer.percent=0.9 # Min % buffer in RAM
mapreduce.reduce.shuffle.merge.percent=0.9 # Minimum % merges in RAM
mapreduce.reduce.speculative=false # Disable speculation for reducing
mapreduce.task.io.sort.factor=999 # Threshold before writing to disk