Creating a Confluence Gadget in JIRA Fails
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Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles for non-Data Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Symptoms
Adding a Confluence Page Gadget to the JIRA Dashboard fails with the below error:
The following appears in the atlassian-jira.log:
2013-04-15 12:28:58,035 http-bio-8080-exec-22 ERROR captain.planet 748x116340x1 1skg2vg 10.80.0.97,127.0.0.1 /plugins/servlet/gadgets/makeRequest [renderer.internal.http.HttpClientFetcher] Unable to retrieve response
java.io.EOFException
at java.util.zip.GZIPInputStream.readUByte(GZIPInputStream.java:264)
at java.util.zip.GZIPInputStream.readUShort(GZIPInputStream.java:254)
at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:163)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:78)
at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:90)
at com.atlassian.gadgets.renderer.internal.http.HttpClientFetcher$GzipDecompressingEntity.decorate(HttpClientFetcher.java:251)
at com.atlassian.gadgets.renderer.internal.http.HttpClientFetcher$InputStreamDecoratingHttpEntity.getContent(HttpClientFetcher.java:232)
at org.apache.http.conn.BasicManagedEntity.getContent(BasicManagedEntity.java:87)Cause
JIRA is connecting to Confluence through a reverse-proxy that has GZip compression enabled. As both JIRA and Confluence also have GZip compression enabled this is causing problems as double compression is applied.
Resolution
- Disable GZip compression in JIRA as in Configuring JIRA Options.
- Disable HTTP Compression in Confluence as described in Compressing an HTTP Response within Confluence.