Error List

Error List for the ‘Java’ Category

/ error

Applies to:
Ant

Description:
Occurs while using Apache Ant.

Cause:
In Your , You’ve put in an of all files followed by an of just the files You want, but it isn’t giving You any files at all.

JAVA-Tools ,

JBoss AS complains about unclosed connections

Applies to:
Hibernate, JBoss AS

Description:
Occurs at application server.

Cause:
You got the message “[org.jboss.resource.connectionmanager.CachedConnectionManager] Closing a connection for you. Please close them yourself: org.jboss.resource.adapter.jdbc.WrappedConnection”

JAVA-Hibernate , , , , , , , , ,

Error 553: To send mail, first check your mail with a valid POP account

Applies to:
NA

Description:
Occurs while sending a mail

Cause:
In order to prevent their use to send spam, some mail servers will require you to have a valid POP3 account and require you to login to that account before they’ll let you send mail through that mail server.

JAVA-Mail ,

Pooling does not work correctly

Applies to:
JBoss

Description:
The pooling does not appear to be working correctly for a resource adapter you wrote

Cause:
a. You have almost certainly not implemented the ConnectionRequestInfo correctly.
b. You are using the wrong pooling strategy.

JAVA-JBoss , ,

NoSuchColumnException

Errors when trying to , fork or access environment variables

Out of Memory Error when using huge datasets

JasperException: Unable to compile class for JSP

Applies to:
JBoss

Description:
Occurs while starting JBoss and trying to access the jmx-console

Cause:
a. Invalid JAVA_HOME value.
b. Incompability with servlet/JSP api.

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There is always one more "InProcess" message than there should be

Applies to:
JBossMQ

Description:
Occurs when You’ve sent two messages to a queue and created a MessageListener or singleton MDB to read the messages. When the first message arrived, You could not see the second message using a QueueBrowser.

Cause:
This is the read ahead processing within JBossMQ, when you configure it in full asynchronous mode (i.e. messages are “pushed” from the server to the client’s “onMessage()” rather than “receive()” being invoked by the client).
It will deliver the first available message.
While that is being processed, it will go back to the server to get the next message.
This will wait on the client side until the first message was processed, it is no longer
visible in the queue. You can see it in the “InProcess” messages using the JMX interface.
This is obviously more efficient than waiting for the client to finish the onMessage() and only then going to the server to get the next message. A message will usually be ready to be processed as soon as the previous one has been completed.

JAVA-JBoss , , , ,

Error downloading artifact

Applies to:
Maven, Fedora Core 4, Java 1.4

Description:
Occurs while using Maven.

Cause:
You tried to build an application with Maven 2 under Fedora Core 4 and Java 1.4. Some versions of Java 1.4 are incompatible with the IPv6 networking protocol, leading to socket errors when Java attempts to establish network connections. IPv6 is enabled by default in Fedora Core 4, and in recent kernel updates (2.6.12) to Fedora Core 3. This causes maven to fail to download jars from remote repositories. The symptoms are:
java.net.SocketException: Invalid argument or cannot assign requested address

JAVA-Tools , , , , ,