title: Error on importing pypgx on jupyter notebook
body: <p>We are trying to import pypgx on a jupyter notebook. The default version of Java is 8. However we are changing the version to 11 with the following code snippet</p>
  <pre><code>import os
  os.environ['JAVA_HOME'] = '/data/jdk'
  os.environ['PATH'] = '/data/jdk/bin:' + os.environ['PATH']
  os.environ['CLASSPATH'] = '/home/orcunt/oracle-graph-client-22.3.0/lib/*'
  print(os.environ['PATH'])
  </code></pre>
  <p>After we run the following code, we see that our Java version changed to &quot;openjdk version &quot;11.0.8&quot; 2020-07-14 LTS&quot;.</p>
  <p>After changing java_home, we are running import pypgx</p>
  <pre><code>import pypgx
  </code></pre>
  <p>However we are getting the following error.</p>
  <pre><code>---------------------------------------------------------------------------
  AttributeError                            Traceback (most recent call last)
  &lt;ipython-input-7-35cee121df1f&gt; in &lt;module&gt;
  ----&gt; 1 import pypgx.pg.rdbms.graph_server as graph_server
  
  ~/.local/lib/python3.6/site-packages/pypgx/__init__.py in &lt;module&gt;
       25 from pypgx._utils.error_handling import PgxError
       26 from pypgx._utils.loglevel import setloglevel
  ---&gt; 27 from pypgx.api._pgx import get_instance, get_session
       28 from pypgx.api.filters import EdgeFilter, VertexFilter, GraphFilter
       29 
  
  ~/.local/lib/python3.6/site-packages/pypgx/api/__init__.py in &lt;module&gt;
       13 
       14 from ._all_paths import AllPaths
  ---&gt; 15 from ._analyst import Analyst
       16 from ._compiled_program import CompiledProgram
       17 from ._entity_provider_meta_data import (
  
  ~/.local/lib/python3.6/site-packages/pypgx/api/_analyst.py in &lt;module&gt;
        7 from jnius import autoclass
        8 
  ----&gt; 9 import pypgx._utils.algorithms_metadata as alg_metadata
       10 from pypgx._utils import pgx_types
       11 from pypgx._utils.arguments_validator import validate_arguments
  
  ~/.local/lib/python3.6/site-packages/pypgx/_utils/algorithms_metadata.py in &lt;module&gt;
        7 from pypgx.api._pgx_collection import VertexSet, VertexSequence, EdgeSequence, EdgeSet
        8 from pypgx.api._pgx_entity import PgxVertex
  ----&gt; 9 from pypgx.api._pgx_graph import PgxGraph, BipartiteGraph
       10 from pypgx.api._pgx_map import PgxMap
       11 from pypgx.api._property import VertexProperty, EdgeProperty
  
  ~/.local/lib/python3.6/site-packages/pypgx/api/_pgx_graph.py in &lt;module&gt;
       12 from pypgx.api._mutation_strategy import MutationStrategy
       13 from pypgx.api._mutation_strategy_builder import MergingStrategyBuilder, PickingStrategyBuilder
  ---&gt; 14 from pypgx.api._pgql_result_set import PgqlResultSet
       15 from pypgx.api._pgx_collection import (
       16     EdgeSequence,
  
  ~/.local/lib/python3.6/site-packages/pypgx/api/_pgql_result_set.py in &lt;module&gt;
       23 PythonClientResultSetUtil = autoclass('oracle.pgx.pypgx.internal.PythonClientResultSetUtil')
       24 
  ---&gt; 25 DEFAULT_PRINT_LIMIT = ResultSetFormatter.DEFAULT_PRINT_LIMIT
       26 
       27 
  
  AttributeError: type object 'oracle.pgql.lang.ResultSetFormatter' has no attribute 'DEFAULT_PRINT_LIMIT'
  </code></pre>