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Java 使用AWS 1.6时com.amazonaws.util.versionInfo.initializeUserAgent上的NullPointerException_Java_Servlets_Amazon Web Services - Fatal编程技术网

Java 使用AWS 1.6时com.amazonaws.util.versionInfo.initializeUserAgent上的NullPointerException

Java 使用AWS 1.6时com.amazonaws.util.versionInfo.initializeUserAgent上的NullPointerException,java,servlets,amazon-web-services,Java,Servlets,Amazon Web Services,我的代码可以很好地与aws-java-sdk-1.0配合使用。 我已经下载了aws.java.sdk-1.6.4的源代码,构建了jar,并将其包含在我的项目中 我得到一个空指针异常 java.lang.NullPointerException at com.amazonaws.util.VersionInfoUtils.initializeUserAgent(VersionInfoUtils.java:123) at com.amazonaws.util.VersionInfoU

我的代码可以很好地与aws-java-sdk-1.0配合使用。 我已经下载了aws.java.sdk-1.6.4的源代码,构建了jar,并将其包含在我的项目中

我得到一个空指针异常

java.lang.NullPointerException
    at com.amazonaws.util.VersionInfoUtils.initializeUserAgent(VersionInfoUtils.java:123)
    at com.amazonaws.util.VersionInfoUtils.getUserAgent(VersionInfoUtils.java:86)
    at com.amazonaws.ClientConfiguration.<clinit>(ClientConfiguration.java:34)
    at org.slideme.feed.model.business.catalog.store.DataStore.initAll(DataStore.java:215)
    at org.slideme.feed.web.Catalog.init(Catalog.java:65)
    at javax.servlet.GenericServlet.init(GenericServlet.java:212)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1206)
    at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:827)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    at java.lang.Thread.run(Thread.java:662)
java.lang.NullPointerException
在com.amazonaws.util.VersionInfoUtils.initializeUserAgent(VersionInfoUtils.java:123)上
在com.amazonaws.util.VersionInfoUtils.getUserAgent(VersionInfoUtils.java:86)上
在com.amazonaws.ClientConfiguration.(ClientConfiguration.java:34)
位于org.slideme.feed.model.business.catalog.store.DataStore.initAll(DataStore.java:215)
位于org.slideme.feed.web.Catalog.init(Catalog.java:65)
位于javax.servlet.GenericServlet.init(GenericServlet.java:212)
位于org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1206)
位于org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:827)
位于org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
位于org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
位于org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
位于org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
位于org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
位于org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
位于org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
位于org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
位于org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
运行(Thread.java:662)

有人知道1.0和1.6之间发生了什么变化,比如API的变化吗?

在调查了源代码之后,它似乎抛出了这个异常,因为属性文件
com/amazonaws/sdk/versionInfo.properties
没有属性
platform

@meewoK@meewoK是的,这就是问题所在。Java对它的理解就像属性
version
有一个值
1.6.4 platform=Java
。非常草率……除非与行尾(*ux vs win)混淆。一家大公司发布的代码中出现这样的错误?感觉就像他们说圣诞老人条款不存在。