java.io.ObjectInputStream类型无法解析。它是从所需的.class文件间接引用的 [英] The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files
问题描述
我已经下载了Eclipse，并尝试创建一个示例的servlet程序，但是我遇到以下错误
I have downloaded Eclipse and tried to create a sample servlet program but I got following error
类型java.io.ObjectInputStream不能得到解决它是从必需的.class文件间接引用的。
The type java.io.ObjectInputStream cannot be resolved. It is indirectly referenced from required .class files
我已经正确配置了构建路径。
我正在使用Java 8和Apache Tomcat 7，两者的库都被正确引用。
I have configured build path correctly. I am using Java 8 and Apache Tomcat 7 and libraries for both are referenced correctly.
问题是专门针对Java EE的。通常Java SE项目运行正常。
Problem is specifically for Java EE only. Ordinarily Java SE projects are running fine.
推荐答案
在Java 8 Update 91中发生了破坏现有JSP代码的事情。这似乎很清楚以下是类似问题和错误报告的示例：
Something happened in Java 8 Update 91 that broke existing JSP code. That seems pretty clear. Here is a sample of similar questions and bug reports:
- 无法使用JDK1.8.0_92编译JSP文件
- Spring MVC - 无法编译JSP的类
- 无法访问CloudPlatform客户端
- https：//bugs.openjdk。 java.net/browse/JDK-8155588 （关闭为不是问题）
- https://bugs.openjdk.java.net/browse/JDK-8155223 （关闭为不是问题）
- https://access.redhat.com/solutions/2294701
- https://alluxio.atlassian.net/browse/ALLUXIO-1956
- https://jira.atlassian.com/browse/CWD-4729
- https://community.exoplatform.com/portal/intranet/forum/topic/topic991e097d9e45345236bb2bd1920a4c68
- https://issues.apache.org/jira/browse / OOZIE-2533 （来自评论：这真的像JDK错误）
- https://bugzilla.redhat.com/show_bug.cgi?id=1337940 （评论2提到更改为
java更新91中的.io.ObjectInputStream使其与RHEL6的当前ECJ版本不兼容） - https://github.com/mit-cml/appinventor-sources/issues/814
- https://community.oracle.com/thread / 3953395
- Unable to compile JSP file with JDK1.8.0_92
- Spring MVC - Unable to compile class for JSP
- Unable to access CloudPlatform Client
- https://bugs.openjdk.java.net/browse/JDK-8155588 (closed as "not an issue")
- https://bugs.openjdk.java.net/browse/JDK-8155223 (closed as "not an issue")
- https://access.redhat.com/solutions/2294701
- https://alluxio.atlassian.net/browse/ALLUXIO-1956
- https://jira.atlassian.com/browse/CWD-4729
- https://community.exoplatform.com/portal/intranet/forum/topic/topic991e097d9e45345236bb2bd1920a4c68
- https://issues.apache.org/jira/browse/OOZIE-2533 (from a comment: "This is really looking like a JDK bug")
- https://bugzilla.redhat.com/show_bug.cgi?id=1337940 (comment 2 mentions the change to
java.io.ObjectInputStreamin Update 91 that "made it incompatible with RHEL6's current ECJ version") - https://github.com/mit-cml/appinventor-sources/issues/814
- https://community.oracle.com/thread/3953395
所有这些都是关于Java 8 Update 91（或更高版本）在使用早期版本时不存在的问题JRE / JDK版本。
All these are about problems with Java 8 Update 91 (or later) that are not present when using earlier JRE/JDK versions.
从2016年1月22日起，以下OpenJDK变更集似乎相关： http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/32f64c19b5fb （提交消息8144430：改进JMX连接）。该变更集似乎与此漏洞有关， https： //cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3427 ，这是在对这个红帽错误报告的评论中提到的， https://bugzilla.redhat.com/show_bug.cgi?id=1336481 。
The following OpenJDK changeset from 22 January 2016 appears to be related: http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/32f64c19b5fb (commit message "8144430: Improve JMX connections"). The changeset seems to be related to this vulnerability, https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3427, which is mentioned in a comment to this Red Hat bug report, https://bugzilla.redhat.com/show_bug.cgi?id=1336481.
更新91发行说明文件提到JDK-8144430（非公开机票）： http://www.oracle.com/technetwork/java/javase/8u91-relnotes-2949462.html 。
The Update 91 release notes document mentions JDK-8144430 (non-public ticket): http://www.oracle.com/technetwork/java/javase/8u91-relnotes-2949462.html.
在Oracle重要补丁更新咨询 - 2016年4月中，提到了CVE-2016-3427漏洞： http://www.oracle.com/technetwork/security-advisory/cpua pr2016v3-2985753.html 。
In "Oracle Critical Patch Update Advisory - April 2016", the CVE-2016-3427 vulnerability is mentioned: http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html.
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