Page History

Systems

Tomcat Trailing slash issue

When accessing the webapp without the trailing slash after the context http://localhost:8080/magnoliaAuthor after login the user is presented with a 404 page rather than admincentral.  This behavior is configurable via the mapperContextRootRedirectEnabled and mapperDirectoryRedirectEnabled attributes of the Context which may be used to restore the previous behavior. See Tomcat 9.0.0.M2 in https://tomcat.apache.org/tomcat-9.0-doc/changelog.html.

Oracle WebLogic and IBM WebSphere

commons-lang

When deploying on Oracle WebLogic 12c, there is a version conflict while using commons-lang. Oracle WebLogic-12c is distributed with commons-lang-2.5.jar, JackRabbit with commons-lang-2.6.jar and Magnolia with commons-lang-2.1.jar.

To resolve this issue, modify setDomainEnv.sh of Oracle WebLogic and add commons-lang-2.6.jar to the PRE_CLASSPATH. 

Bouncy Castle

Magnolia uses the Bouncy Castle cryptography package to decode the license key and to secure the activation process. Oracle WebLogic 12c is distributed with bcprov-jdk16-1.45.jar but Magnolia is distributed with bcprov-jdk15on-1.58.jar. This leads to a library version conflict.

Symptom: after inserting valid license key into the Magnolia license form, the error message "License is empty" is displayed.

To resolve, do one of the following:

• Edit setDomainEnv.sh in Oracle WebLogic and add bcprov-jdk15on-1.58.jar to PRE_CLASSPATH or
• Remove bcprov-jdk16-1.45.jar from Oracle WebLogic 12c common libraries.

Google Guava

Magnolia cannot render images stored in dam workspace. Google Guava library is used by the DAM API which is used for working with images.

Symptom:

java.lang.RuntimeException: java.lang.NoClassDefFoundError: Could not initialize class com.google.common.cache.LocalCache

Workaround:

 Modify the weblogic.xml file in your application's WEB-INF folder with the prefer-application-packages  element:

<container-descriptor>
   <prefer-application-packages>
	 <package-name>com.google.common.*</package-name>
   </prefer-application-packages>
</container-descriptor>

Oracle WebLogic and IBM WebSphere deployment issue with jBPM 6

jBPM 6 cannot be deployed on Oracle WebLogic or IBM WebSphere. jBPM is included in the Magnolia Workflow module. All deployment methods are affected: Administration Console, Oracle WebLogic.Deployer, wldeploy Ant task and autodeploy directory.

Symptom:

weblogic.application.ModuleException: java.lang.ClassNotFoundException: org.jbpm.services.task.lifecycle.listeners.TaskLifeCycleEventListener

Workaround:

1. Deploy an application which doesn't contain Magnolia Workflow with jBPM6, for example Magnolia 5.2.2 or Magnolia 5.3 without the Workflow module.
2. In the deployment target location, replace the deployed webapp with a new webapp that contains workflow with jBPM6

Windows

Firewall is blocking Java

Allow an exception in Windows Firewall for Java.

1. Go to Control Panel > Windows Firewall.
2. Go to the Exceptions tab.
3. Click Add Program and browse to the java.exe file in the Java installation directory, for example C:\Sun\SDK\jdk\bin\java.exe.
4. Click OK.

If you get a security alert during startup, check the Private networks checkbox and click Allow access.

Image Added

CATALINA_HOME environment variable is not defined

CATALINA_HOME environment variable identifies the Tomcat home directory, for example C:\Program Files\magnolia\apache-tomcat. Usually Magnolia finds this directory automatically. When you type magnolia_control.bat start in the bin directory to start the system, a second script named startup.bat tries to find Tomcat home. It assumes that Tomcat home is one level above the bin directory where you issued the command, and sets the value of CATALINA_HOME to that directory.

C:\Program Files
    magnolia
        apache-tomcat   <-- Tomcat home directory
            bin         <-- magnolia_control.bat is here

However, if you added the bin directory to your PATH environment variable you can execute magnolia_control.bat from anywhere. This means startup.bat does not find Tomcat home directory by simply moving up one level from where you are and displays the following error:

Image Added

To correct this define CATALINA_HOME in environment variables. Follow the instructions in Set JAVA_HOME environment variable.

JAR file does not start

When installing the Enterprise Edition on Windows, you can start the installer by double-clicking the JAR file. If this does not work there is a chance that some application on your system has registered the .jar extension.

You can try to fix it yourself by restoring the association of the .jar extension with the javaw.exe executable. .Right-click the JAR file and select Open With. Typically the javaw.exe file is in C:\Program Files (x86)\java\jre6\bin). Alternatively, start the installer from a command prompt with the following command: java -jar magnolia-enterprise-installer-x.y.z.jar. Make sure the file extension is .jar. Internet Explorer has a tendency to append or change it to .zip.

Other issues

Log full of index rules warnings when upgrading from 5.4.x directly to 6.0.x

Jackrabbit 2.16 introduced existence checks for node-types when refreshing indexing configurations. Previously it would accept arbitrary node-type names as strings. If your project is not using Magnolia's SearchIndex implementation, you may find the following messages in your logs:

2018-07-25 17:48:33,691 WARN  rabbit.core.query.lucene.IndexingConfigurationImpl: Unable to refresh index rules
javax.jcr.nodetype.NoSuchNodeTypeException: {http://www.magnolia.info/jcr/mgnl}page
	at org.apache.jackrabbit.core.nodetype.NodeTypeRegistry.getNodeTypeDef(NodeTypeRegistry.java:552) ~[jackrabbit-core-2.16.1.jar:2.16.1]

2018-03-16 11:30:57,892 WARN  rg.apache.jackrabbit.core.query.lucene.SearchIndex: Exception initializing indexing configuration from: /info/magnolia/jackrabbit/indexing_configuration_website.xml
javax.jcr.nodetype.NoSuchNodeTypeException: {http://www.magnolia.info/jcr/mgnl}page
	at org.apache.jackrabbit.core.nodetype.NodeTypeRegistry.getNodeTypeDef(NodeTypeRegistry.java:552) ~[jackrabbit-core-2.16.1.jar:2.16.1]

To mitigate this problem, replace in your Jackrabbit search configuration files

<SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">

with

<SearchIndex class="info.magnolia.jackrabbit.lucene.SearchIndex">

The warnings should not appear in the logs if you follow our recommendation to update first to the latest minor release version before upgrading to the most recent major release, see How to update.

Too many open files

The embedded Derby database, an option that can be used instead of the H2 database, opens several file handles and may run over the maximum limit set by the system. This issue can occur on some Linux and OS X systems such as Macbook Air.

The solution is to increase the system-wide limit on the number of open files. The exact procedure varies from one OS to the next, see Too many open files.

Session de-serialization

When installing or updating to a new version, you may see this error message:

2009-11-24 13:02:14,970 ERROR org.apache.catalina.session.ManagerBase : 
IOException while loading persisted sessions

This can be due to changes in signatures of classes that are stored in user sessions, such as permissions, user, etc. The error happens when Tomcat attempts to de-serialize serialized sessions as the container starts. The de-serialization causes the loss of persisted sessions. Users will have to log in again. Otherwise it is a harmless error and can be ignored.

Port 8080 is already in use

Port 8080 is the default port for Tomcat. You can see it at the end of the default address  http://localhost:8080 . If another application on the computer is already using the same port you may need to change it.

1. Open <CATALINA_HOME>/conf/server.xml in a text editor. This file is under your Magnolia installation directory.

2. Find the following section and set the value of port to something other than 8080, for example 8090:

   Code Block
   xml xml
   <!-- Define a non-SSL HTTP/1.1 Connector on port 8080 --> <Connector port="8090" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" />

Change the defaultBaseUrl property which is used to generate links in emails or other external systems. To do this, you need to now access Magnolia at the new port 8090.

1. Log into the author instance at  http://localhost:8090/magnoliaAuthor/.magnolia  .
2. Go to Configuration.
3. Set the value of /server/defaultBaseUrl property to http://localhost:8090/magnolia/ .
4. Log into the public instance at  http://localhost:8090/magnoliaPublic/.magnolia  .
5. Go to Configuration.
6. Set the value of /server/defaultBaseUrl property to http://localhost:8090/magnolia/ .

Now the Welcome page at  http://localhost:8090   has the correct URLs too.

The port also needs to be changed in publishing configuration, otherwise publishing (activating) changes from the author to public instance fails.

1. On the author instance, 
   1. If you are using the Publishing module, go to Configuration > modules > publishing-core > config > receivers .
   2. If you are using the Activation module, go to Configuration > modules > activation > subscribers .
2. Under the magnoliaPublic8080 receiver (subscriber), set the URL property to  http://localhost:8090/magnoliaPublic  .
3. Rename the receiver (subscriber) to magnoliaPublic8090 .
4. Activate the modified receiver (subscriber) including its subnodes.

Log full of index rules warnings when upgrading from 5.4.x directly to 6.0.x

Jackrabbit 2.16 introduced existence checks for node-types when refreshing indexing configurations. Previously it would accept arbitrary node-type names as strings. If your project is not using Magnolia's SearchIndex implementation, you may find the following messages in your logs:

2018-07-25 17:48:33,691 WARN  rabbit.core.query.lucene.IndexingConfigurationImpl: Unable to refresh index rules
javax.jcr.nodetype.NoSuchNodeTypeException: {http://www.magnolia.info/jcr/mgnl}page
	at org.apache.jackrabbit.core.nodetype.NodeTypeRegistry.getNodeTypeDef(NodeTypeRegistry.java:552) ~[jackrabbit-core-2.16.1.jar:2.16.1]

2018-03-16 11:30:57,892 WARN  rg.apache.jackrabbit.core.query.lucene.SearchIndex: Exception initializing indexing configuration from: /info/magnolia/jackrabbit/indexing_configuration_website.xml
javax.jcr.nodetype.NoSuchNodeTypeException: {http://www.magnolia.info/jcr/mgnl}page
	at org.apache.jackrabbit.core.nodetype.NodeTypeRegistry.getNodeTypeDef(NodeTypeRegistry.java:552) ~[jackrabbit-core-2.16.1.jar:2.16.1]

To mitigate this problem, replace in your Jackrabbit search configuration files

<SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">

with

<SearchIndex class="info.magnolia.jackrabbit.lucene.SearchIndex">

The warnings should not appear in the logs if you follow our recommendation to update first to the latest minor release version before upgrading to the most recent major release, see How to update.

Tomcat Trailing slash issue

When accessing the webapp without the trailing slash after the context http://localhost:8080/magnoliaAuthor after login the user is presented with a 404 page rather than admincentral.  This behavior is configurable via the mapperContextRootRedirectEnabled and mapperDirectoryRedirectEnabled attributes of the Context which may be used to restore the previous behavior. See Tomcat 9.0.0.M2 in https://tomcat.apache.org/tomcat-9.0-doc/changelog.html.

Oracle WebLogic 12c library conflicts

commons-lang

When deploying on Oracle WebLogic 12c, there is a version conflict while using commons-lang. Oracle WebLogic-12c is distributed with commons-lang-2.5.jar, JackRabbit with commons-lang-2.6.jar and Magnolia with commons-lang-2.1.jar.

To resolve this issue, modify setDomainEnv.sh of Oracle WebLogic and add commons-lang-2.6.jar to the PRE_CLASSPATH. 

Bouncy Castle

Magnolia uses the Bouncy Castle cryptography package to decode the license key and to secure the activation process. Oracle WebLogic 12c is distributed with bcprov-jdk16-1.45.jar but Magnolia is distributed with bcprov-jdk15on-1.58.jar. This leads to a library version conflict.

Symptom: after inserting valid license key into the Magnolia license form, the error message "License is empty" is displayed.

To resolve, do one of the following:

• Edit setDomainEnv.sh in Oracle WebLogic and add bcprov-jdk15on-1.58.jar to PRE_CLASSPATH or
• Remove bcprov-jdk16-1.45.jar from Oracle WebLogic 12c common libraries.

Google Guava

Magnolia cannot render images stored in dam workspace. Google Guava library is used by the DAM API which is used for working with images.

Symptom:

java.lang.RuntimeException: java.lang.NoClassDefFoundError: Could not initialize class com.google.common.cache.LocalCache

Workaround:

 Modify the weblogic.xml file in your application's WEB-INF folder with the prefer-application-packages  element:

<container-descriptor>
   <prefer-application-packages>
	 <package-name>com.google.common.*</package-name>
   </prefer-application-packages>
</container-descriptor>

Oracle WebLogic and IBM WebSphere deployment issue with jBPM 6

jBPM 6 cannot be deployed on Oracle WebLogic or IBM WebSphere. jBPM is included in the Magnolia Workflow module. All deployment methods are affected: Administration Console, Oracle WebLogic.Deployer, wldeploy Ant task and autodeploy directory.

Symptom:

weblogic.application.ModuleException: java.lang.ClassNotFoundException: org.jbpm.services.task.lifecycle.listeners.TaskLifeCycleEventListener

Workaround:

1. Deploy an application which doesn't contain Magnolia Workflow with jBPM6, for example Magnolia 5.2.2 or Magnolia 5.3 without the Workflow module.
2. In the deployment target location, replace the deployed webapp with a new webapp that contains workflow with jBPM6

Too many open files

The embedded Derby database, an option that can be used instead of the H2 database, opens several file handles and may run over the maximum limit set by the system. This issue can occur on some Linux and OS X systems such as Macbook Air.

The solution is to increase the system-wide limit on the number of open files. The exact procedure varies from one OS to the next, see Too many open files.

...

1. Find the current maximum number of open files per user in a single session: 
   ulimit -n
   By default the number is 1024 which is too small.
2. Edit the limits.conf file: 
   sudo gedit /etc/security/limits.conf
3. Add the following lines to the file: 
   * soft nofile 10000
* hard nofile 50000
   This sets for all users a soft limit of 10000 open files and a hard limit of 50000. These are just example numbers. Set them according to your system needs. Note that the wildcard option applies only to regular users, not to superuser. If you run Magnolia as superuser replace the asterisk with root.
4. Save the file.
5. Edit the configuration file for session-related modules: 
   sudo gedit /etc/pam.d/common-session

6. Add the following line to the file: 
   session required pam_limits.so


   Info
   On *ubuntu 17.04 you'll probably also have to add the following line DefaultLimitNOFILE=65535 to /etc/systemd/system.conf and to /etc/systemd/user.conf . See Cannot Increase open file limit past 4096 (Ubuntu).

7. Save the file.
8. Restart Ubuntu.
9. Verify the new maximum number of open files: 
   ulimit -n
   The command should now return 10000.

Session de-serialization

When installing or updating to a new version, you may see this error message:

2009-11-24 13:02:14,970 ERROR org.apache.catalina.session.ManagerBase : 
IOException while loading persisted sessions

This can be due to changes in signatures of classes that are stored in user sessions, such as permissions, user, etc. The error happens when Tomcat attempts to de-serialize serialized sessions as the container starts. The de-serialization causes the loss of persisted sessions. Users will have to log in again. Otherwise it is a harmless error and can be ignored.

Port 8080 is already in use

Port 8080 is the default port for Tomcat. You can see it at the end of the default address  http://localhost:8080 . If another application on the computer is already using the same port you may need to change it.

...

Find the following section and set the value of port to something other than 8080, for example 8090:

...

<!-- Define a non-SSL HTTP/1.1 Connector on port 8080 -->
<Connector port="8090" maxHttpHeaderSize="8192"
           maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
           enableLookups="false" redirectPort="8443" acceptCount="100"
           connectionTimeout="20000" disableUploadTimeout="true" />

Change the defaultBaseUrl property which is used to generate links in emails or other external systems. To do this, you need to now access Magnolia at the new port 8090.

1. Log into the author instance at  http://localhost:8090/magnoliaAuthor/.magnolia  .
2. Go to Configuration.
3. Set the value of /server/defaultBaseUrl property to http://localhost:8090/magnolia/ .
4. Log into the public instance at  http://localhost:8090/magnoliaPublic/.magnolia  .
5. Go to Configuration.
6. Set the value of /server/defaultBaseUrl property to http://localhost:8090/magnolia/ .

Now the Welcome page at  http://localhost:8090   has the correct URLs too.

The port also needs to be changed in publishing configuration, otherwise publishing (activating) changes from the author to public instance fails.

1. On the author instance, 
   1. If you are using the Publishing module, go to Configuration > modules > publishing-core > config > receivers .
   2. If you are using the Activation module, go to Configuration > modules > activation > subscribers .
2. Under the magnoliaPublic8080 receiver (subscriber), set the URL property to  http://localhost:8090/magnoliaPublic  .
3. Rename the receiver (subscriber) to magnoliaPublic8090 .
4. Activate the modified receiver (subscriber) including its subnodes.

Issues on Windows

Firewall is blocking Java

Allow an exception in Windows Firewall for Java.

1. Go to Control Panel > Windows Firewall.
2. Go to the Exceptions tab.
3. Click Add Program and browse to the java.exe file in the Java installation directory, for example C:\Sun\SDK\jdk\bin\java.exe.
4. Click OK.

If you get a security alert during startup, check the Private networks checkbox and click Allow access.

Image Removed

CATALINA_HOME environment variable is not defined

CATALINA_HOME environment variable identifies the Tomcat home directory, for example C:\Program Files\magnolia\apache-tomcat. Usually Magnolia finds this directory automatically. When you type magnolia_control.bat start in the bin directory to start the system, a second script named startup.bat tries to find Tomcat home. It assumes that Tomcat home is one level above the bin directory where you issued the command, and sets the value of CATALINA_HOME to that directory.

C:\Program Files
    magnolia
        apache-tomcat   <-- Tomcat home directory
            bin         <-- magnolia_control.bat is here

However, if you added the bin directory to your PATH environment variable you can execute magnolia_control.bat from anywhere. This means startup.bat does not find Tomcat home directory by simply moving up one level from where you are and displays the following error:

Image Removed

To correct this define CATALINA_HOME in environment variables. Follow the instructions in Set JAVA_HOME environment variable.

JAR file does not start

When installing the Enterprise Edition on Windows, you can start the installer by double-clicking the JAR file. If this does not work there is a chance that some application on your system has registered the .jar extension.

...

Java out of memory

If the Java Virtual Machine (JVM) does not have enough memory you may see a java.lang.OutOfMemoryError in the startup log and Magnolia fails to start.

...