Sonar

Implement a child-first classloader strategy for plugins

Details

  • Type: Improvement Improvement
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: None
  • Fix Version/s: 2.4
  • Component/s: API
  • Labels:
    None
  • Number of attachments :
    0

Description

Default classloader strategy is parent-first. Sonar libs are loaded before plugin libs. For this reason a plugin can not ignore Sonar libs or use other versions. It can generate conflicts in some cases, usually on XML libs.

A plugin should have the choice to use the child-first strategy, at its own risk. The property "Plugin-FirstClassloader" must be added with value "true" to the plugin manifest. It requires to improve the sonar-packaging-maven-plugin.

Issue Links

is depended upon by

Improvement - An improvement or enhancement to an existing feature or task. SONAR-1772 Remove the use of the Maven Findbugs plugin to directly pilot the Findbugs library

  • Major - Major loss of function.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.

Improvement - An improvement or enhancement to an existing feature or task. SONARPLUGINS-499 Use sonar-plugin packaging

  • Major - Major loss of function.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.
is related to

New Feature - A new feature of the product, which has yet to be developed. SONAR-1869 sonar-packaging-maven-plugin : should be possible to specify delegation model for plugin classloader

  • Major - Major loss of function.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.

Activity

Ascending order - Click to sort in descending order
Hide
Permalink
Evgeny Mandrikov added a comment -

See http://articles.qos.ch/classloader.html

Show
Evgeny Mandrikov added a comment - See http://articles.qos.ch/classloader.html
Hide
Permalink
Evgeny Mandrikov added a comment -

Note that also another strategy can be used to achieve this goal - see MaskingClassLoader.java

Show
Evgeny Mandrikov added a comment - Note that also another strategy can be used to achieve this goal - see MaskingClassLoader.java
Evgeny Mandrikov made changes -
Field Original Value New Value
Status Open [ 1 ] In Progress [ 3 ]
Hide
Permalink
Evgeny Mandrikov added a comment -

Possibility to use child-first delegation model implemented in r5667, but we still must improve sonar-packaging-maven-plugin - see SONAR-1869.

Show
Evgeny Mandrikov added a comment - Possibility to use child-first delegation model implemented in r5667 , but we still must improve sonar-packaging-maven-plugin - see SONAR-1869 .
Evgeny Mandrikov made changes -
Link This issue is related to SONAR-1869 [ SONAR-1869 ]
Evgeny Mandrikov made changes -
Link This issue is depended upon by SONARPLUGINS-499 [ SONARPLUGINS-499 ]
Hide
Permalink
Evgeny Mandrikov added a comment -

Full support for child-first classloader strategy added in r5670.

Show
Evgeny Mandrikov added a comment - Full support for child-first classloader strategy added in r5670 .
Evgeny Mandrikov made changes -
Status In Progress [ 3 ] Resolved [ 5 ]
Resolution Fixed [ 1 ]
Hide
Permalink
Evgeny Mandrikov added a comment -

Implementation tested on SCM Activity Plugin - see SONARPLUGINS-499.

Show
Evgeny Mandrikov added a comment - Implementation tested on SCM Activity Plugin - see SONARPLUGINS-499 .
Evgeny Mandrikov made changes -
Link This issue is depended upon by SONAR-1772 [ SONAR-1772 ]
Freddy Mallet made changes -
Status Resolved [ 5 ] Closed [ 6 ]

People

  • Assignee:
    Evgeny Mandrikov
    Reporter:
    Simon Brandhof
Vote (0)
Watch (0)

Dates

  • Created:
    Updated:
    Resolved: