0003601: Automatic classpath scanning for EJB's fails under certain conditions

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Category

Severity

Reproducibility

Date Submitted

Last Update

0003601

[Resin]

major

always

07-16-09 16:32

08-27-09 15:10

Reporter

mbrew

View Status

public

Assigned To

ferg

Priority

normal

Resolution

fixed

Status

closed

Product Version

3.1.9

Summary

0003601: Automatic classpath scanning for EJB's fails under certain conditions

Description

I was working on a project upgrading our resin server from version 3.1.5 to version 3.1.9.

The classpath scanning for auto-discovery of EJB's is broken in version 3.1.9 of resin and above. I am trying to deploy an .ear file with .jar and .war files inside. The .jar file contains EJB's. Please find attached a test.ear file demonstrating the problem.

I have debugged the resin server and have tracked down the problem to (DynamicClassLoader.java lines: 1272 and 1163) where it is calling sendAddLoaderEvent();.

Calling sendAddLoaderEvent(); prematurely causes the boolean _hasNewLoader to become false. This becomes a problem later when more URL's from the deploy directory have been added by (EnvironmentClassLoader.java line: 534, scan() function) and the (EnvironmentClassLoader.java line: 573, start() function) calls sendAddLoaderEvent();. As the boolean _hasNewLoader is now false the deploy directory is not scanned and the EJB's are not found by the server.

Later I fixed the bug by removing the Class-Path entries from the MANIFEST.MF file. Exactly why the class-path entries in the manifest affect the scanning of the deploy directory when the jar(with ejb's in it) is expanded eluded me.

Note: The Class-Path entries in MANIFEST.MF in the earlier version of resin did not affect the loading of EJB's. This bug must have been introduced in a version between 3.1.5 and 3.1.9.

Additional Information

Attached Files

test.ear [^] (56,384 bytes) 07-16-09 16:32

Relationships

Notes
(0004189) ferg 08-27-09 15:10	ejb/0i20

Issue History
Date Modified	Username	Field	Change
07-16-09 16:32	mbrew	New Issue
07-16-09 16:32	mbrew	File Added: test.ear
08-27-09 15:10	ferg	Note Added: 0004189
08-27-09 15:10	ferg	Assigned To	=> ferg
08-27-09 15:10	ferg	Status	new => closed
08-27-09 15:10	ferg	Resolution	open => fixed
08-27-09 15:10	ferg	Fixed in Version	=> 4.0.2
08-27-09 15:10	ferg	Description Updated

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