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    <title>topic Re: java.lang.ExceptionInInitializerError in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253737#M14654</link>
    <description>&lt;P&gt;Thanks! There doesn't seem to be a clear pattern in that unfortunately.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;For reference, the Dropbox Java SDK contains a "sdk-version.txt" file with the version number for the SDK in it, for use in the User-Agent header string.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Based on the stack trace you shared, it appears the exception is occurring inside Java's getResourceAsStream, when the Dropbox SDK asks for an input stream for that&amp;nbsp;"sdk-version.txt" file.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;It's unclear why that may be happening, so I'll ask engineering to look into it.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Tue, 21 Nov 2017 18:35:43 GMT</pubDate>
    <dc:creator>Greg-DB</dc:creator>
    <dc:date>2017-11-21T18:35:43Z</dc:date>
    <item>
      <title>java.lang.ExceptionInInitializerError</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253612#M14645</link>
      <description>&lt;P&gt;I have an Android app with the Dropbox Java api 3.0.5&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;For some reason some of my users get the exception I'm pasting below, but the majority do not. I've never reproduced the issue, I've only seen it reported on Crashlytics.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Does anyone have any idea what the issue could be? I use multidex on my app, is it maybe related to that?&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Thank you.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;PRE&gt;Fatal Exception: java.lang.ExceptionInInitializerError
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxRequestUtil.buildUserAgentHeader(DbxRequestUtil.java:151)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxRequestUtil.addUserAgentHeader(DbxRequestUtil.java:136)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxRequestUtil.startPostRaw(DbxRequestUtil.java:233)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.v2.DbxRawClientV2$1.execute(DbxRawClientV2.java:107)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.v2.DbxRawClientV2.executeRetriable(DbxRawClientV2.java:284)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.v2.DbxRawClientV2.rpcStyle(DbxRawClientV2.java:102)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.v2.users.DbxUserUsersRequests.getCurrentAccount(DbxUserUsersRequests.java:120)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at mypackage.UserDropbox.(UserDropbox.java)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at mypackage.DropboxHelper$1.run(DropboxHelper.java)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.lang.Thread.run(Thread.java:818)
Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'void java.util.jar.JarVerifier.removeMetaEntries()' on a null object reference
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.util.jar.JarFile.getInputStream(JarFile.java:381)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at libcore.net.url.JarURLConnectionImpl.getInputStream(JarURLConnectionImpl.java:222)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.net.URL.openStream(URL.java:470)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java:444)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.lang.Class.getResourceAsStream(Class.java:1412)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxSdkVersion.loadLineFromResource(DbxSdkVersion.java:34)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxSdkVersion.loadVersion(DbxSdkVersion.java:56)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxSdkVersion.(DbxSdkVersion.java)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxRequestUtil.buildUserAgentHeader(DbxRequestUtil.java:151)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxRequestUtil.addUserAgentHeader(DbxRequestUtil.java:136)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.DbxRequestUtil.startPostRaw(DbxRequestUtil.java:233)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.v2.DbxRawClientV2$1.execute(DbxRawClientV2.java:107)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.v2.DbxRawClientV2.executeRetriable(DbxRawClientV2.java:284)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.v2.DbxRawClientV2.rpcStyle(DbxRawClientV2.java:102)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at com.dropbox.core.v2.users.DbxUserUsersRequests.getCurrentAccount(DbxUserUsersRequests.java:120)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at mypackage.UserDropbox.(UserDropbox.java)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at mypackage.DropboxHelper$1.run(DropboxHelper.java)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; at java.lang.Thread.run(Thread.java:818)&lt;/PRE&gt;</description>
      <pubDate>Fri, 29 May 2020 17:16:11 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253612#M14645</guid>
      <dc:creator>casolorz</dc:creator>
      <dc:date>2020-05-29T17:16:11Z</dc:date>
    </item>
    <item>
      <title>Re: java.lang.ExceptionInInitializerError</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253691#M14651</link>
      <description>&lt;P&gt;[Cross-linking for reference:&amp;nbsp;&lt;A href="https://stackoverflow.com/questions/47537572/exception-while-dropbox-api-tries-to-read-a-resource-might-be-multidex-issue" target="_blank"&gt;https://stackoverflow.com/questions/47537572/exception-while-dropbox-api-tries-to-read-a-resource-might-be-multidex-issue&lt;/A&gt; ]&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;I unfortunately have not seen this issue before. Do you know if it seems to be specific to any particular Android version, device, etc.?&lt;/P&gt;</description>
      <pubDate>Tue, 28 Nov 2017 18:07:32 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253691#M14651</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2017-11-28T18:07:32Z</dc:date>
    </item>
    <item>
      <title>Re: java.lang.ExceptionInInitializerError</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253703#M14652</link>
      <description>So far Android 5 and 6, seems to be on Motorola phones, Samsung phones, and some weird brand I've never head of. I only have this in beta so I don't have that many reports yet.</description>
      <pubDate>Tue, 21 Nov 2017 15:27:50 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253703#M14652</guid>
      <dc:creator>casolorz</dc:creator>
      <dc:date>2017-11-21T15:27:50Z</dc:date>
    </item>
    <item>
      <title>Re: java.lang.ExceptionInInitializerError</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253737#M14654</link>
      <description>&lt;P&gt;Thanks! There doesn't seem to be a clear pattern in that unfortunately.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;For reference, the Dropbox Java SDK contains a "sdk-version.txt" file with the version number for the SDK in it, for use in the User-Agent header string.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Based on the stack trace you shared, it appears the exception is occurring inside Java's getResourceAsStream, when the Dropbox SDK asks for an input stream for that&amp;nbsp;"sdk-version.txt" file.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;It's unclear why that may be happening, so I'll ask engineering to look into it.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Tue, 21 Nov 2017 18:35:43 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253737#M14654</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2017-11-21T18:35:43Z</dc:date>
    </item>
    <item>
      <title>Re: java.lang.ExceptionInInitializerError</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253744#M14655</link>
      <description>That is good to know. I'm wondering if my proguard is maybe renaming that or multidex is putting it on a second dex file and it is having issues getting it out there. I've had that happen before with multidex but only during the Application onCreate. &lt;BR /&gt;&lt;BR /&gt;My proguard file has:&lt;BR /&gt;&lt;BR /&gt;-keep class com.dropbox.** { *; }&lt;BR /&gt;-keepclassmembers class com.dropbox.** { *; }&lt;BR /&gt;&lt;BR /&gt;Maybe I need to add something else to my multidex config to tell it to keep that file on the on the first dex file.</description>
      <pubDate>Tue, 21 Nov 2017 18:56:32 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/java-lang-ExceptionInInitializerError/m-p/253744#M14655</guid>
      <dc:creator>casolorz</dc:creator>
      <dc:date>2017-11-21T18:56:32Z</dc:date>
    </item>
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