IT44455: COMPILATION OF RESTAPI PROJECT USING 'MQSICREATEBAR' COMMAND ENCOUNTERS SNAKE-PARSING YAML ERROR FOR YAML-TYPE SPECIFICATION

APAR status

• Closed as program error.

Error description

• When executing the "MQSICREATEBAR" command against a project
  involving a RESTAPI and utilizing an OpenAPI specification file
  in YAML format, users may encounter a parsing error related to
  snake-parsing YAML content.
  
  
  "[INFO] [Worker-2: Building] WARN
  io.swaggter.v3.parser.util.DeserializationUtils - Error
  snake-parsing yaml content
  [INFO] java.lang.NoSuchMethodError:
  org/yaml/snakeyaml/constructor/SafeConstructor.<init>()V"
  
  The command execution completes with this warning message and
  the bar file will be generated.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM App Connect Enterprise V12 executing
  mqsicreatebar command on RESTAPI applications.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  <p>When users execute the mqsicreatebar command on REST API
  projects that include an OpenAPI specification file in YAML
  format, they may encounter an error message saying "Error
  snake-parsing YAML content." Despite this error, a valid BAR
  file will still be generated.
   </p><p>The console error message will appear similar to:</p>
  [Worker-3: Building] WARN
  io.swagger.v3.parser.util.DeserializationUtils - Error
  snake-parsing yaml content java.lang.NoSuchMethodError:
  org/yaml/snakeyaml/constructor/SafeConstructor.<init>()V (loaded
  from file:/C:/Program
  Files/IBM/ACE/12.0.9.0/tools/plugins/com.ibm.etools.mft.config_1
  2.0.9.0/snakeyaml-2.0.jar by
  org.eclipse.osgi.internal.loader.EquinoxClassLoader@9e292f3[com.
  ibm.etools.mft.config:12.0.9.0(id=244)]) called from class
  io.swagger.v3.parser.util.DeserializationUtils$CustomSnakeYamlCo
  nstructor (loaded from file:/C:/Program
  Files/IBM/ACE/12.0.9.0/tools/plugins/com.ibm.etools.mft.config_1
  2.0.9.0/swagger-parser-v3-2.0.33.jar by
  org.eclipse.osgi.internal.loader.EquinoxClassLoader@9e292f3[com.
  ibm.etools.mft.config:12.0.9.0(id=244)]). at
  io.swagger.v3.parser.util.DeserializationUtils$CustomSnakeYamlCo
  nstructor.<init>(DeserializationUtils.java:372) at
  io.swagger.v3.parser.util.DeserializationUtils.readYamlTree(Dese
  rializationUtils.java:190)"
  

Problem conclusion

• The mqsicreatebar command executes successfully on REST API
  projects that include an OpenAPI specification file in YAML
  format.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v12.0      12.0.12.4
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  APP CONNECT ENT

• Fixed component ID

  5724J0560

Applicable component levels