Error "com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException"

Hi All,

Iam trying to setup newer version of confluence in a linux machine,

When i change the confluence.cfg.xml to point the mySQL DB i get below error,

in the confluence.cfg.xml , iam changing as below,

<property name="hibernate.connection.url"> jdbc:mysql://localhost/confluence?autoReconnect=true&useUnicode=true&characterEncoding=utf8</property>

Error when i access the confluence URL.

com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException

at com.atlassian.util.concurrent.LazyReference.getInterruptibly(LazyReference.java:152)

at com.atlassian.util.concurrent.LazyReference.get(LazyReference.java:115)

at com.atlassian.confluence.web.filter.LanguageExtractionFilter.getLocaleManager(LanguageExtractionFilter.java:63)

at com.atlassian.confluence.web.filter.LanguageExtractionFilter.doFilter(LanguageExtractionFilter.java:48)

at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

I refereed to the below forums and deleted the cache , plugins but it did not resolve the issue,

https://answers.atlassian.com/questions/94131/confluence-system-error-java-lang-nullpointerexception

https://answers.atlassian.com/questions/95478/oops-an-error-has-occurred

Could any one please help in resolving this issue.

Thanks,

Aravind

1 answer

1 accepted

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Hi Aravind,

You can try creating a new confluence.home, point the confluence-init.properties at this new location, then start the application. This will drive you through the setup process. Point the setup wizard at a new, empty database. Allow the setup process to run through and create the tables for this new instance. Once the setup process has completed, shut down that instance of Confluence, then modify the confluence.cfg.xml to point at the database you originally tried to point Confluence to, mentioned up above.

Depending on what system confluence is running on, your hibernate.connection.url should look like this:

<property name="hibernate.connection.url">jdbc:mysql://localhost/confluence?sessionVariables=storage_engine%3DInnoDB&amp;useUnicode=true&amp;characterEncoding=utf8</property>

This of course is different for different systems as the special characters are represented differently.

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