Java agent v8.9.1

Fixes

• Check HttpHost instance for null before dereferencing it when certain execute() methods are called 1722
• Do an instanceof check in the complete() method before class cast 1719
• Null check on the response object before trying to report an external call 1719

Deprecations

• The browser footer injection APIs have been deprecated and will be removed in a future agent release. The header injection API now adds both the header and footer scripts. 1679

The following instrumentation modules are deprecated and will be removed in the next major release:

• aws-wrap-0.7.0
• java.completable-future-jdk8
• play-2.3
• spring-3.0.0
• netty-3.4
• Struts v1

Update to the latest version

To identify which version of the Java agent you're currently using, run java -jar newrelic.jar -v. Your Java agent version will be printed to your console.

Then, to update to the latest Java agent version:

1. Back up the entire Java agent root directory to another location. Rename that directory to NewRelic_Agent#.#.#, where #.#.# is the agent version number.
2. Download the agent.
3. Unzip the new agent download file, then copy newrelic-api.jar and newrelic.jar into the original Java agent root directory.
4. Compare your old newrelic.yml with the newly downloaded newrelic.yml from the zip, and update the file if needed.
5. Restart your Java dispatcher.

If you experience issues after the Java agent update, restore from the New Relic agent directory backed up.

Update agent config differences

We add new settings to newrelic.yml as we release new agent versions. You can use diff or another diffing utility to see what's changed and add the new config settings to your old file. Make sure not to overwrite any customizations you've made to the file, such as your license key, app name, or changes to default settings.

For example, if you diff the default newrelic.yml files for Java agent versions 7.10.0 and 7.11.0, the results printed to the console will be like this:

➜ diff newrelic_7.10.0.yml newrelic_7.11.0.yml
...
107a108,119
>       # Whether the log events should include context from loggers with support.
>       include_context_data:
>
>         # When true, application logs will contain context data.
>         enabled: false
>
>         # A comma separated list of attribute keys whose values should be sent to New Relic.
>         #include:
>
>         # A comma separated list of attribute keys whose values should not be sent to New Relic.
>         #exclude:
>
125a138
>
128c141
<     enabled: false
---
>     enabled: true
...

In this example, these lines were added to the default newrelic.yml in Java agent version 7.11.0. If you are moving to 7.11.0 or higher, add these new lines to your original newrelic.yml.

Support statement:

• New Relic recommends that you upgrade the agent regularly to ensure you get the latest features and performance benefits. Additionally, older releases will no longer be supported when they reach end-of-life.