oak-upgrade/src/main/java/org/apache/jackrabbit/oak/upgrade/cli/blob/AzureDataStoreFactory.java [137:167]:
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        return new Closeable() {
            @Override
            public void close() throws IOException {
                try {
                    while (store.getStats().get(1).getElementCount() > 0) {
                        Thread.sleep(100);
                    }
                } catch (InterruptedException e) {
                    throw new IOException(e);
                } finally {
                    try {
                        store.close();
                    } catch (DataStoreException e) {
                        throw new IOException(e);
                    }
                }
            }
        };
    }

    static String stripValue(String value) {
        Matcher matcher = STRIP_VALUE_PATTERN.matcher(value);
        if (matcher.matches()) {
            return matcher.group(1);
        } else {
            return value;
        }
    }

    @Override
    public String toString() {
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oak-upgrade/src/main/java/org/apache/jackrabbit/oak/upgrade/cli/blob/S3DataStoreFactory.java [128:158]:
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        return new Closeable() {
            @Override
            public void close() throws IOException {
                try {
                    while (store.getStats().get(1).getElementCount() > 0) {
                        Thread.sleep(100);
                    }
                } catch (InterruptedException e) {
                    throw new IOException(e);
                } finally {
                    try {
                        store.close();
                    } catch (DataStoreException e) {
                        throw new IOException(e);
                    }
                }
            }
        };
    }

    static String stripValue(String value) {
        Matcher matcher = STRIP_VALUE_PATTERN.matcher(value);
        if (matcher.matches()) {
            return matcher.group(1);
        } else {
            return value;
        }
    }

    @Override
    public String toString() {
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