PI88404: RDZ 9.5.1, Exception opening a sequential dataset after a member was opened from a PDS of the same name

APAR status

• Closed as program error.

Error description

• In Rational Developer for z Systems (RDz) v9.5.1, if a PDS
  containing a member is deleted and subsequently a new PDSE with
  the same name is created,  attempting to open PDSE will result
  in the following exception:
  
  java.lang.ClassNotFoundException:
  com.ibm.ftt.projects.core.logical.ILogicalResource cannot be
  found by com.ibm.ftt.resources.zos_12.6.8.201704171819
  	at
  org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(
  Unknown Source)
  	at
  org.eclipse.osgi.internal.loader.BundleLoader.findClass(Unknown
  Source)
  	at
  org.eclipse.osgi.internal.loader.BundleLoader.findClass(Unknown
  Source)
  	at
  org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(Unk
  nown Source)
  	at java.lang.ClassLoader.loadClass(Unknown Source)
  	at
  com.ibm.ftt.resources.core.impl.extensions.SingleParameterDispat
  ch.isAssignableFrom(Unknown Source)
  	at
  com.ibm.ftt.resources.core.impl.extensions.DefaultDispatchStrate
  gy.getDelegateInstance(Unknown Source)
  	at
  com.ibm.ftt.ui.resources.core.editor.EditorUtilsRegistry.getEdit
  orUtils(Unknown Source)
  	at
  com.ibm.ftt.ui.resources.core.editor.EditorUtils.getDefaultEdito
  r(Unknown Source)
  	at
  com.ibm.ftt.ui.resources.core.editor.EditorOpener.open(Unknown
  Source)
  	at
  com.ibm.ftt.rse.mvs.client.ui.views.MVSFileResourceAdapter.handl
  eDoubleClick(Unknown Source)
  
  The same exception occurs when a PDS with the same name as a
  deleted PDSE is created and its member is opened in the editor.
  

Local fix

• After deleting the data set, clear the file cache using Window >
  Preferences > Remote Systems > File Cache and click on Clear
  Cached Files and then open the  new PDSE or PDS member.
  

Problem summary

• A sequential dataset fails to open in an editor when the user
  has previously opened a member for a (now-deleted) PDS of the
  same name.
  

Problem conclusion

• A workspace folder was created representing a PDS to contain
  replica files for edited PDS members.  After the PDS has been
  deleted and a sequential dataset of the same name gets created,
  an edit of the sequential dataset will be mapped to a file and
  it happens to be in the same workspace location as the directory
  that represented the (previously existing) PDS.  Because it is
  a directory rather than a file, RSE fails when attempting to
  write content to it.
  

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

  EXP FOR Z/OS CL

• Fixed component ID

  5655EXP00

Applicable component levels