blocks|key|2781906|text|Is+there+any+known+issue+with+this+particular+Java+7+version?|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2781907|我们很清楚Java+1.7的问题。|2781908|Is+there+going+to+be+full+Java+7+support+for+GAE+Java+on+the+roadmap?|2781909|在我们正式宣布之前，我们需要耐心等待。|2781910|entityMap^0|0|1P|0|0|0|1X|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Q|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|U|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|M|$]]

<code>Is there any known issue with this particular Java 7 version?</code>

We're well aware of Java 1.7 issues.

<code>Is there going to be full Java 7 support for GAE Java on the roadmap?</code>

Until we've made some official announcement, we have to ask for patience.

blocks|key|1625052|text|从Java1.7.7开始，添加了对AppEngine+7的支持。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1625053|http://googleappengine.blogspot.ca/2013/04/app-engine-177-released.html|offset|length|1625054|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1Z|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

As of AppEngine 1.7.7, support has been added for Java 7. 

<a href="http://googleappengine.blogspot.ca/2013/04/app-engine-177-released.html" rel="nofollow">http://googleappengine.blogspot.ca/2013/04/app-engine-177-released.html</a>

blocks|key|2868525|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2868526|这个特定的Java7版本有什么已知的问题吗？|blockquote|2868527|2868528|2868529|嗯，正如你所说的，它不受支持。|2868530|此外，2011年的thread似乎在OS上引用了一个类似的错误，并宣布了一个错误修复。|offset|length|2868531|2868532|在路线图上会有对GAE+Java的全面Java7支持吗？|2868533|2868534|2868535|可能在相当长的一段时间内不会。|2868536|但是，您可以尝试在Eclipse项目(或您使用的任何构建系统)中强制使用1.6源代码格式和1.6目标类格式。|2868537|进一步阅读：|2868538|2868539|Is+it+possible+to+use+Java+7+on+GAE?+(来自+mailing-list)|unordered-list-item|2868540|Google+App+Engine+and+Java+Version?|2868541|2868542|entityMap|0|LINK|mutability|MUTABLE|url|https://groups.google.com/forum/?fromgroups#!topic/google-appengine-java/IEAohfEN-oE|1|2|https://stackoverflow.com/questions/8139477/google-app-engine-and-java-version^0|0|0|0|0|0|9|6|0|0|0|0|0|0|0|0|0|0|0|10|1|0|0|Z|2|0|0^^$0|@$1|2|3|-4|4|5|6|1E|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|1F|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|1G|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|1H|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|1I|7|@]|8|@]|9|$]]|$1|H|3|I|4|5|6|1J|7|@]|8|@$J|1K|K|1L|1|1M]]|9|$]]|$1|L|3|-4|4|5|6|1N|7|@]|8|@]|9|$]]|$1|M|3|N|4|C|6|1O|7|@]|8|@]|9|$]]|$1|O|3|-4|4|5|6|1P|7|@]|8|@]|9|$]]|$1|P|3|-4|4|5|6|1Q|7|@]|8|@]|9|$]]|$1|Q|3|R|4|5|6|1R|7|@]|8|@]|9|$]]|$1|S|3|T|4|5|6|1S|7|@]|8|@]|9|$]]|$1|U|3|V|4|5|6|1T|7|@]|8|@]|9|$]]|$1|W|3|-4|4|5|6|1U|7|@]|8|@]|9|$]]|$1|X|3|Y|4|Z|6|1V|7|@]|8|@$J|1W|K|1X|1|1Y]]|9|$]]|$1|10|3|11|4|Z|6|1Z|7|@]|8|@$J|20|K|21|1|22]]|9|$]]|$1|12|3|-4|4|5|6|23|7|@]|8|@]|9|$]]|$1|13|3|-4|4|5|6|24|7|@]|8|@]|9|$]]]|14|$15|$4|16|17|18|9|$19|1A]]|1B|$4|16|17|18|9|$19|1A]]|1C|$4|16|17|18|9|$19|1D]]]]

<blockquote>
 Is there any known issue with this particular Java 7 version?
</blockquote>

Well, as you stated it's not supported.

Also, this 2011 <a href="https://groups.google.com/forum/?fromgroups#!topic/google-appengine-java/IEAohfEN-oE" rel="nofollow noreferrer">thread</a> seems to reference a similar bug on OS X and announces a bugfix.

<blockquote>
 Is there going to be full Java 7 support for GAE Java on the roadmap?
</blockquote>

Probably not for a rather long while.

You could, however, try to force the use of a 1.6 source format and a 1.6 target class format, in your Eclipse project (or whichever build system you use).

<h2>Further Reading:</h2>

<ul>
<li><a href="https://groups.google.com/forum/?fromgroups#!topic/google-appengine-java/IEAohfEN-oE" rel="nofollow noreferrer">Is it possible to use Java 7 on GAE?</a> (from the <a href="https://groups.google.com/group/google-appengine-java" rel="nofollow noreferrer">google-appengine-java</a> mailing-list)</li>
<li><a href="https://stackoverflow.com/questions/8139477/google-app-engine-and-java-version">Google App Engine and Java Version?</a></li>
</ul>

blocks|key|2868636|text|以下是最近在here上宣布的内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2868637|2868638|版本1.7.3+-+2012年10月23日|blockquote|2868639|2868640|我们鼓励您尝试使用Java7和App+Engine+SDK测试您的应用程序。请注意，Java+7不是一个受支持的运行时。|2868641|我们鼓励您在开发appserver中尝试的Java7特性：|style|BOLD|2868642|开关中的字符串|2868643|数字文字中的二进制整数文字和下划线|2868644|多次接球和更精确的重抛|2868645|改进了泛型实例创建的类型推断(菱形)|2868646|try-with-resources语句|2868647|简化的varargs方法调用|2868648|2868649|2868650|不支持的|2868651|+Java7功能：|2868652|2868653|所有新的Java+7类(+Google+App+Engine白名单尚未更新)|2868654|方法句柄|2868655|调用动态字节码|2868656|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/p/googleappengine/wiki/SdkForJavaReleaseNotes^0|6|4|0|0|0|0|0|0|L|8|0|0|0|0|0|0|0|0|0|0|1|8|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1L|8|@]|9|@$A|1M|B|1N|1|1O]]|C|$]]|$1|D|3|-4|5|6|7|1P|8|@]|9|@]|C|$]]|$1|E|3|F|5|G|7|1Q|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|1R|8|@]|9|@]|C|$]]|$1|I|3|J|5|6|7|1S|8|@]|9|@]|C|$]]|$1|K|3|L|5|6|7|1T|8|@$A|1U|B|1V|M|N]]|9|@]|C|$]]|$1|O|3|P|5|6|7|1W|8|@]|9|@]|C|$]]|$1|Q|3|R|5|6|7|1X|8|@]|9|@]|C|$]]|$1|S|3|T|5|6|7|1Y|8|@]|9|@]|C|$]]|$1|U|3|V|5|6|7|1Z|8|@]|9|@]|C|$]]|$1|W|3|X|5|6|7|20|8|@]|9|@]|C|$]]|$1|Y|3|Z|5|6|7|21|8|@]|9|@]|C|$]]|$1|10|3|-4|5|6|7|22|8|@]|9|@]|C|$]]|$1|11|3|-4|5|6|7|23|8|@]|9|@]|C|$]]|$1|12|3|13|5|6|7|24|8|@]|9|@]|C|$]]|$1|14|3|15|5|G|7|25|8|@$A|26|B|27|M|N]]|9|@]|C|$]]|$1|16|3|-4|5|6|7|28|8|@]|9|@]|C|$]]|$1|17|3|18|5|6|7|29|8|@]|9|@]|C|$]]|$1|19|3|1A|5|6|7|2A|8|@]|9|@]|C|$]]|$1|1B|3|1C|5|6|7|2B|8|@]|9|@]|C|$]]|$1|1D|3|-4|5|6|7|2C|8|@]|9|@]|C|$]]]|1E|$1F|$5|1G|1H|1I|C|$1J|1K]]]]

Here is what has been announced <a href="http://code.google.com/p/googleappengine/wiki/SdkForJavaReleaseNotes" rel="nofollow noreferrer">here</a> on this recently:
<blockquote>
Version 1.7.3 - October 23, 2012
We encourage you to try and test your application using Java 7 and the
App Engine SDK. Note that Java 7 is not a supported runtime.
Java 7
Features that we encourage you to try in dev appserver:
Strings in switch
Binary integral literals and underscores in number literals
Multi-catch and more precise rethrow
Improved type inference for
generic instance creation (diamond)
try-with-resources statement
Simplified varargs method invocation
</blockquote>
<hr />
<blockquote>
Java 7 features that are NOT supported:
All new Java 7 classes (the Google App Engine whitelist has
not been updated yet)
Method Handles
Invoke Dynamic bytecode
</blockquote>

The Google App Engine Java <a href="https://developers.google.com/appengine/docs/java/overview" rel="nofollow">overview page</a> indicates that the Java versions 5 and 6 are supported. When starting the local development server with Java 7u4 the following error bubbles up:

<pre><code>#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGBUS (0xa) at pc=0x000000010d733a96, pid=32766, tid=140735250205024
#
# JRE version: 7.0_04-b21
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.0-b21 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# J com.google.appengine.repackaged.org.objectweb.asm.MethodWriter.visitInsn(I)V
#
</code></pre>

For more information please refer to the <a href="http://pastebin.com/rP1WAunw" rel="nofollow">output</a> and the <a href="http://pastebin.com/r72ff0gC" rel="nofollow">thread dump</a>.

Is there any known issue with this particular Java 7 version? Is there going to be full Java 7 support for GAE Java on the roadmap?

Java 7 support for Google App Engine Java

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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Google App Engine Java 表明支持Java version5和6。使用Java 7u4启动本地开发服务器时，会出现以下错误：## A fatal error has been detected by the Java Runtime Environment:##  SIGBUS (0xa) at pc=0x000000010d733a96, pid=32766, tid=140

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