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Posted to java-dev@axis.apache.org by ji...@apache.org on 2004/03/23 21:30:58 UTC
[jira] Created: (AXIS-1261) engineConfigFactoryMissing (for concurrent requests)
Message:
A new issue has been created in JIRA.
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View the issue:
http://issues.apache.org/jira/secure/ViewIssue.jspa?key=AXIS-1261
Here is an overview of the issue:
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Key: AXIS-1261
Summary: engineConfigFactoryMissing (for concurrent requests)
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Philip Fletcher
Created: Tue, 23 Mar 2004 12:29 PM
Updated: Tue, 23 Mar 2004 12:29 PM
Environment: Linux 2.4.20; Java 1.4.1; Tomcat 5.0.19; Axis 1.1 on Pentium4 + 1Gb
Description:
Bug logged at request of Davanum Srinivas:
To attempt to test concurrent performance of Axis (using samples/userguide/example3), I have created two testing classes: TestThread (extends Thread:) which calls samples.userguide.example3.Client.main( args ) from it's run method and Test which simply starts 10 TestThread threads.
Occasionally (1 in 10) I will get a NullPointerException for the first 2-5 threads often accompanied by:
org.apache.axis.configuration.EngineConfigurationFactoryFinder$1 run
SEVERE: Unable to locate a valid EngineConfigurationFactory
java.lang.NullPointerException
The error is generated from line 183 of EngineConfigurationFactoryFinder.java where it has the following comments:
log.error(Messages.getMessage("engineConfigFactoryMissing"));
// we should be throwing an exception here,
//
// but again, requires more refactoring than we want to swallow
// at this point in time. Ifthis DOES occur, it's a coding error:
// factory should NEVER be null.
// Testing will find this, as NullPointerExceptions will be generated
// elsewhere.
The two (very noddy) test classes follow, along with an example stack trace:
===TestThread.java===
public class TestThread extends Thread {
private String mythread;
public void run() {
java.util.Random r = new java.util.Random();
int randomtime = r.nextInt() % 250;
String tname = Thread.currentThread().getName();
String args[] = { "-lhttp://localhost:8080/axis/services/MyService", tname };
//Run twice in this thread
samples.userguide.example3.Client.main( args );
samples.userguide.example3.Client.main( args );
}
}
===Test.java===
class Test {
public static void main(String[] args) {
//Start some threads
for ( int i=0; i<10; i++ ) {
new TestThread().start();
}
}
}
===Stack Trace===
$java Test
Mar 23, 2004 7:25:59 PM org.apache.axis.configuration.EngineConfigurationFactoryFinder$1 run
SEVERE: Unable to locate a valid EngineConfigurationFactory
java.lang.NullPointerException
at org.apache.axis.client.Service.getEngineConfiguration(Service.java:801)
at org.apache.axis.client.Service.getAxisClient(Service.java:143)
at org.apache.axis.client.Service.<init>(Service.java:152)
at Client.main(Client.java:27)
at TestThread.run(TestThread.java:16)
java.lang.NullPointerException
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