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    <title>Magnolia - Issue tracker</title>
    <link>https://jira.magnolia-cms.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-uk</language>    <build-info>
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        <build-number>940002</build-number>
        <build-date>19-01-2023</build-date>
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<item>
            <title>[MGNLIMG-121] Upgrade to Guava 16</title>
                <link>https://jira.magnolia-cms.com/browse/MGNLIMG-121</link>
                <project id="10151" key="MGNLIMG">Imaging</project>
                    <description>&lt;p&gt;Magnolia 5.3 will be shipped with Guava 16. Unfortunately, this means &lt;tt&gt;CachingImageStreamer&lt;/tt&gt; has to be adapted.&lt;br/&gt;
See description in linked ticket &lt;a href=&quot;https://jira.magnolia-cms.com/browse/MAGNOLIA-4847&quot; title=&quot;Upgrade to newer version of guava&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MAGNOLIA-4847&quot;&gt;&lt;del&gt;MAGNOLIA-4847&lt;/del&gt;&lt;/a&gt; for details.&lt;/p&gt;

&lt;p&gt;Details:&lt;br/&gt;
It&apos;ll be necessary to change info.magnolia.imaging.caching.CachingImageStreamer class to &lt;br/&gt;
not use com.google.common.collect.MapMaker but com.google.common.cache.CacheBuilder. &lt;/p&gt;

&lt;p&gt;That&apos;s because caching functionality in MapMaker was move to CacheBuilder. &lt;br/&gt;
Migration guide: &lt;a href=&quot;http://code.google.com/p/guava-libraries/wiki/MapMakerMigration&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://code.google.com/p/guava-libraries/wiki/MapMakerMigration&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="36700">MGNLIMG-121</key>
            <summary>Upgrade to Guava 16</summary>
                <type id="3" iconUrl="https://jira.magnolia-cms.com/secure/viewavatar?size=xsmall&amp;avatarId=10898&amp;avatarType=issuetype">Task</type>
                                            <priority id="1" iconUrl="https://jira.magnolia-cms.com/images/icons/priorities/blocker.svg">Blocker</priority>
                        <status id="6" iconUrl="https://jira.magnolia-cms.com/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="1">Fixed</resolution>
                                        <assignee username="czimmermann">Christopher Zimmermann</assignee>
                                    <reporter username="gjoseph">Magnolia International</reporter>
                        <labels>
                    </labels>
                <created>Tue, 25 Feb 2014 11:01:01 +0100</created>
                <updated>Wed, 9 Apr 2014 09:14:13 +0200</updated>
                            <resolved>Wed, 9 Apr 2014 09:14:13 +0200</resolved>
                                                    <fixVersion>3.1</fixVersion>
                                        <due></due>
                            <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="81222" author="gjoseph" created="Thu, 13 Mar 2014 17:30:49 +0100"  >&lt;p&gt;I just read through the MapMaker migration guide, and I&apos;m not sure this evolved for the better, for our very specific case. Our usage of MapMaker is for &quot;current jobs&quot;, ie. keeping tracks of various image generation jobs running in parallel. Once the job is done, the job stays in the map for 500ms, but the image isn&apos;t regenerated. Further requests don&apos;t even go through this map.&lt;/p&gt;

&lt;p&gt;It looks like what we really needed was simply the ConcurrentMap, and &lt;b&gt;maybe&lt;/b&gt; we took a shortcut by using a Computing version of it.&lt;br/&gt;
Now, Guava replaced this by &lt;tt&gt;CacheBuilder&lt;/tt&gt; and &lt;tt&gt;LoadingCache&lt;/tt&gt;, and I&apos;m concerned, among other things, that using these new concepts will introduce further confusion (as is there wasn&apos;t enough) as to what &lt;tt&gt;CachingImageStreamer&lt;/tt&gt; does and how (what&apos;s cached in which cache)&lt;/p&gt;

&lt;p&gt;Sequence diagrams and some clever decoupling and renaming might help.&lt;/p&gt;</comment>
                            <comment id="81373" author="czimmermann" created="Mon, 17 Mar 2014 16:34:27 +0100"  >&lt;p&gt;In order to upgrade to Guava 16, the usage of MapMaker has been replaced with CacheBuilder, as MapMaker is deprecated.&lt;br/&gt;
This necessitated handling ExecutionException instead of ComputationException in serveImage.&lt;/p&gt;</comment>
                            <comment id="81407" author="czimmermann" created="Tue, 18 Mar 2014 10:27:34 +0100"  >&lt;p&gt;Pushed to master in two commits, one for actual changes, one for upping version to 3.1-SNAPSHOT.&lt;/p&gt;</comment>
                            <comment id="82837" author="mdivilek" created="Tue, 8 Apr 2014 19:10:50 +0200"  >&lt;p&gt;Imaging has dependency to magnolia main 5.0.2, but this version use guava 10.0.1, which is not compatible with guava 16.0.1.&lt;br/&gt;
We should update magnolia main dependency to 5.3, but unfortunately this cause failing tests.&lt;/p&gt;</comment>
                            <comment id="83012" author="czimmermann" created="Wed, 9 Apr 2014 09:14:13 +0200"  >&lt;p&gt;Closing again. Ive linked the existing ticket for the problem that Milan has mentioned.&lt;/p&gt;</comment>
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