@RequiresRestart(RequiresRestart.RestartScope.SYSTEM)
    @JsonPropertyDescription(
            "Sets the prepStmtCacheSqlLimit property on the at the JDBC driver level. The " +
                    "maximum length for a prepared SQL statement that can be cached. " +
                    COMMON_JDBC_DESC)
    @Min(0)
    public int getPrepStmtCacheSqlLimit() {
        return prepStmtCacheSqlLimit;
    }
Merges the non-null values of other into this. If other is null return this.
stroom-config/stroom-config-common/src/main/java/stroom/config/common/ConnectionPoolConfig.java