I am getting following error in NiFi `ExecuteScript` processor.   ```java 18:07:09 UTCERROR9e1d9c5e-0188-1000-ffff-fffffbc25817 10.42.62.250:8080ExecuteScript[id=9e1d9c5e-0188-1000-ffff-fffffbc25817] ExecuteScript[id=9e1d9c5e-0188-1000-ffff-fffffbc25817] failed to process due to org.apache.nifi.processor.exception.ProcessException: javax.script.ScriptException: java.lang.IllegalStateException: java.lang.IllegalStateException: StandardFlowFileRecord[uuid=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1686706804350-73290, container=default, section=586], offset=6556, length=39642],offset=0,name=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,size=39642] already in use for an active callback or an InputStream created by ProcessSession.read(FlowFile) has not been closed in <script> at line number 37 - Caused by: javax.script.ScriptException: java.lang.IllegalStateException: java.lang.IllegalStateException: StandardFlowFileRecord[uuid=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1686706804350-73290, container=default, section=586], offset=6556, length=39642],offset=0,name=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,size=39642] already in use for an active callback or an InputStream created by ProcessSession.read(FlowFile) has not been closed in <script> at line number 37 - Caused by: Traceback (most recent call last):   File "<script>", line 37, in <module> at org.apache.nifi.controller.repository.StandardProcessSession.validateRecordState(StandardProcessSession.java:3715) at org.apache.nifi.controller.repository.StandardProcessSession.validateRecordState(StandardProcessSession.java:3710) at org.apache.nifi.controller.repository.StandardProcessSession.transfer(StandardProcessSession.java:2349) at jdk.internal.reflect.GeneratedMethodAccessor2736.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) java.lang.IllegalStateException: java.lang.IllegalStateException: StandardFlowFileRecord[uuid=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1686706804350-73290, container=default, section=586], offset=6556, length=39642],offset=0,name=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,size=39642] already in use for an active callback or an InputStream created by ProcessSession.read(FlowFile) has not been closed   - Caused by: java.lang.IllegalStateException: StandardFlowFileRecord[uuid=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1686706804350-73290, container=default, section=586], offset=6556, length=39642],offset=0,name=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,size=39642] already in use for an active callback or an InputStream created by ProcessSession.read(FlowFile) has not been closed; rolling back session: {} 18:07:09 UTCERROR9e1d9c5e-0188-1000-ffff-fffffbc25817 10.42.62.250:8080ExecuteScript[id=9e1d9c5e-0188-1000-ffff-fffffbc25817] Processing failed: org.apache.nifi.processor.exception.ProcessException: javax.script.ScriptException: java.lang.IllegalStateException: java.lang.IllegalStateException: StandardFlowFileRecord[uuid=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1686706804350-73290, container=default, section=586], offset=6556, length=39642],offset=0,name=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,size=39642] already in use for an active callback or an InputStream created by ProcessSession.read(FlowFile) has not been closed in <script> at line number 37 - Caused by: javax.script.ScriptException: java.lang.IllegalStateException: java.lang.IllegalStateException: StandardFlowFileRecord[uuid=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1686706804350-73290, container=default, section=586], offset=6556, length=39642],offset=0,name=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,size=39642] already in use for an active callback or an InputStream created by ProcessSession.read(FlowFile) has not been closed in <script> at line number 37 - Caused by: Traceback (most recent call last):   File "<script>", line 37, in <module> at org.apache.nifi.controller.repository.StandardProcessSession.validateRecordState(StandardProcessSession.java:3715) at org.apache.nifi.controller.repository.StandardProcessSession.validateRecordState(StandardProcessSession.java:3710) at org.apache.nifi.controller.repository.StandardProcessSession.transfer(StandardProcessSession.java:2349) at jdk.internal.reflect.GeneratedMethodAccessor2736.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) java.lang.IllegalStateException: java.lang.IllegalStateException: StandardFlowFileRecord[uuid=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1686706804350-73290, container=default, section=586], offset=6556, length=39642],offset=0,name=40d42213-2c7a-49a2-8c5d-5a7fc58bad2d,size=39642] already in use for an active callback or an InputStream created by ProcessSession.read(FlowFile) has not been closed ```   I am trying to run following script in NiFi `ExecuteScript` processor   ``` import xml.etree.ElementTree as ET import os import java.io from org.apache.commons.io import IOUtils from java.nio.charset import StandardCharsets def find_pattern_in_xml(file_path, target_string):     tree = ET.ElementTree(ET.fromstring(file_path))     root = tree.getroot()       found_elements = []       # Iterate through all elements in the XML tree     for element in root.iter():         # Check if the target string is present in the element text         if target_string in element.text:             found_elements.append(element)       return found_elements flowFile = session.get() if flowFile is not None:     try:         stream_content = session.read(flowFile)         text_content = IOUtils.toString(stream_content, StandardCharsets.UTF_8)         # flowfile_path = flowFile.getAttribute('sourceFileName')         target_string = "~Indv"         found_elements = find_pattern_in_xml(flowfile_path, target_string)           # Print the found elements         for element in found_elements:             session.remove(flowFile)             print(element.tag, element.text)     except Exception as e:         # Log the error and route the flowfile to failure         log.error("Error processing flowfile"+ str(e))         session.transfer(flowFile, REL_FAILURE) session.commit()   ``` ... 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