10:48 p.m.
Teiid embedded non-delegating classloader issues
------------------------------------------------
Key: TEIID-479
URL: https://jira.jboss.org/jira/browse/TEIID-479
Project: Teiid
Issue Type: Bug
Components: Embedded
Affects Versions: 6.1.0
Reporter: Steven Hawkins
Assignee: Ramesh Reddy
Priority: Critical
Fix For: 6.0.0
The non-delegating classloader for lib and patches entries will create problems if any of
the jars duplicate classes from a higher level classloader - without overriding all of the
referenced classes. See TEIIDDES-141 for a similar situation in a designer install.
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10:48 p.m.
New subject: [JBoss JIRA] Updated: (TEIID-479) Teiid embedded non-delegating classloader issues
[
https://jira.jboss.org/jira/browse/TEIID-479?page=com.atlassian.jira.plug...
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Steven Hawkins updated TEIID-479:
---------------------------------
Fix Version/s: 6.1.0
(was: 6.0.0)
Affects Version/s: 6.0.0
(was: 6.1.0)
Teiid embedded non-delegating classloader issues
------------------------------------------------
Key: TEIID-479
URL: https://jira.jboss.org/jira/browse/TEIID-479
Project: Teiid
Issue Type: Bug
Components: Embedded
Affects Versions: 6.0.0
Reporter: Steven Hawkins
Assignee: Ramesh Reddy
Priority: Critical
Fix For: 6.1.0
The non-delegating classloader for lib and patches entries will create problems if any of
the jars duplicate classes from a higher level classloader - without overriding all of the
referenced classes. See TEIIDDES-141 for a similar situation in a designer install.
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6:12 a.m.
New subject: [JBoss JIRA] Commented: (TEIID-479) Teiid embedded non-delegating classloader issues
[
https://jira.jboss.org/jira/browse/TEIID-479?page=com.atlassian.jira.plug...
]
Ramesh Reddy commented on TEIID-479:
------------------------------------
There three different this issue will be fixing
1) Convert the Embedded's runtime engine to use "delegating" class loader
instead of the "non-delegating" currently in use.
2) The directory where the runtime libraries are dynamically loaded from should be
configurable.
3) The extensions mechanism, needs allow configuration to specify multiple directories.
Teiid embedded non-delegating classloader issues
------------------------------------------------
Key: TEIID-479
URL: https://jira.jboss.org/jira/browse/TEIID-479
Project: Teiid
Issue Type: Bug
Components: Embedded
Affects Versions: 6.0.0
Reporter: Steven Hawkins
Assignee: Ramesh Reddy
Priority: Critical
Fix For: 6.1.0
The non-delegating classloader for lib and patches entries will create problems if any of
the jars duplicate classes from a higher level classloader - without overriding all of the
referenced classes. See TEIIDDES-141 for a similar situation in a designer install.
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4:43 p.m.
New subject: [JBoss JIRA] Commented: (TEIID-479) Teiid embedded non-delegating classloader issues
[
https://jira.jboss.org/jira/browse/TEIID-479?page=com.atlassian.jira.plug...
]
Ramesh Reddy commented on TEIID-479:
------------------------------------
By changing to delegate model, we run into risk of using in-compatible libraries than
those tested in the application server scenarios, especially in the JBoss AS, as embedded
uses the JBoss Cache and JBoss Transactions etc. Teiid may need to make more effort in
terms of using same versions as the AS to reduce any conflicts or may need to come up
another class loading scheme, where libraries like jta, connector-api loaded using the
delegating, but all others are loaded with non-delegating. We will make this decision
based on more testing and user feedback.
Teiid embedded non-delegating classloader issues
------------------------------------------------
Key: TEIID-479
URL: https://jira.jboss.org/jira/browse/TEIID-479
Project: Teiid
Issue Type: Bug
Components: Embedded
Affects Versions: 6.0.0
Reporter: Steven Hawkins
Assignee: Ramesh Reddy
Priority: Critical
Fix For: 6.1.0
The non-delegating classloader for lib and patches entries will create problems if any of
the jars duplicate classes from a higher level classloader - without overriding all of the
referenced classes. See TEIIDDES-141 for a similar situation in a designer install.
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6:40 p.m.
New subject: [JBoss JIRA] Resolved: (TEIID-479) Teiid embedded non-delegating classloader issues
[
https://jira.jboss.org/jira/browse/TEIID-479?page=com.atlassian.jira.plug...
]
Ramesh Reddy resolved TEIID-479.
--------------------------------
Resolution: Done
To keep the old behaviour in tact of using the post-delegation class loader, added
dqp.useNonDelegateClassloader=true|false
so, if user supplies this property in the URL, post delegation class loader will be used
in loading the embedded. However, the default class loading is delegating.
Teiid designer is using the delegation model.
Teiid embedded non-delegating classloader issues
------------------------------------------------
Key: TEIID-479
URL: https://jira.jboss.org/jira/browse/TEIID-479
Project: Teiid
Issue Type: Bug
Components: Embedded
Affects Versions: 6.0.0
Reporter: Steven Hawkins
Assignee: Ramesh Reddy
Priority: Critical
Fix For: 6.1.0
The non-delegating classloader for lib and patches entries will create problems if any of
the jars duplicate classes from a higher level classloader - without overriding all of the
referenced classes. See TEIIDDES-141 for a similar situation in a designer install.
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7:19 p.m.
New subject: [JBoss JIRA] Reopened: (TEIID-479) Teiid embedded non-delegating classloader issues
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https://jira.jboss.org/jira/browse/TEIID-479?page=com.atlassian.jira.plug...
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Ramesh Reddy reopened TEIID-479:
--------------------------------
This method of deployment is not working for the JBoss AS as Embedded has version
differences in the common libraries that of JBoss. This option does not give the fine
grained classloading that is required for library overrides.
Teiid embedded non-delegating classloader issues
------------------------------------------------
Key: TEIID-479
URL: https://jira.jboss.org/jira/browse/TEIID-479
Project: Teiid
Issue Type: Bug
Components: Embedded
Affects Versions: 6.0.0
Reporter: Steven Hawkins
Assignee: Ramesh Reddy
Priority: Critical
Fix For: 6.1.0
The non-delegating classloader for lib and patches entries will create problems if any of
the jars duplicate classes from a higher level classloader - without overriding all of the
referenced classes. See TEIIDDES-141 for a similar situation in a designer install.
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7:24 p.m.
New subject: [JBoss JIRA] Closed: (TEIID-479) Teiid embedded non-delegating classloader issues
[
https://jira.jboss.org/jira/browse/TEIID-479?page=com.atlassian.jira.plug...
]
Ramesh Reddy closed TEIID-479.
------------------------------
Resolution: Done
This property is removed from the Embedded's configuration. Embedded class loading is
be now further refined under TEIID-590
Teiid embedded non-delegating classloader issues
------------------------------------------------
Key: TEIID-479
URL: https://jira.jboss.org/jira/browse/TEIID-479
Project: Teiid
Issue Type: Bug
Components: Embedded
Affects Versions: 6.0.0
Reporter: Steven Hawkins
Assignee: Ramesh Reddy
Priority: Critical
Fix For: 6.1.0
The non-delegating classloader for lib and patches entries will create problems if any of
the jars duplicate classes from a higher level classloader - without overriding all of the
referenced classes. See TEIIDDES-141 for a similar situation in a designer install.
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5714
days inactive
5750
days old
6 comments
2 participants
participants (2)
-
Ramesh Reddy (JIRA) -
Steven Hawkins (JIRA)