Weblogic啟動期間出現LinkageError

Question

當我將ear項目部署到weblogic中時，在應用程序啟動期間， LinkageError出現如下：

<Jun 11, 2018 5:31:00 PM IRDT> <Error> <WLSS.Setup> <BEA-331210> <Skip SIP related logic, because error occurs when parsing sip related annotations of "DSwar"
com.bea.wcp.sip.engine.server.setup.SipAnnotationParsingException: 
    at com.bea.wcp.sip.engine.server.setup.SipAnnotationData.<init>(SipAnnotationData.java:155)
    at com.bea.wcp.sip.util.DeploymentUtil.getOrCreateAnnotationData(DeploymentUtil.java:70)
    at com.bea.wcp.sip.util.DeploymentUtil.isSipModule(DeploymentUtil.java:96)
    at com.bea.wcp.sip.engine.server.SipServerTailModule$1.visit(SipServerTailModule.java:127)
    at com.bea.wcp.sip.engine.server.SipServerTailModule.visitAllContexts(SipServerTailModule.java:112)
    Truncated. see log file for complete stacktrace
Caused By: java.lang.IncompatibleClassChangeError: Implementing class
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at weblogic.utils.classloaders.GenericClassLoader.defineClass(GenericClassLoader.java:343)
    Truncated. see log file for complete stacktrace
> 
<Jun 11, 2018 5:31:06 PM IRDT> <Error> <WLSS.Setup> <BEA-331210> <Skip SIP related logic, because error occurs when parsing sip related annotations of "TTMS"
com.bea.wcp.sip.engine.server.setup.SipAnnotationParsingException: 
    at com.bea.wcp.sip.engine.server.setup.SipAnnotationData.<init>(SipAnnotationData.java:155)
    at com.bea.wcp.sip.util.DeploymentUtil.getOrCreateAnnotationData(DeploymentUtil.java:70)
    at com.bea.wcp.sip.util.DeploymentUtil.isSipModule(DeploymentUtil.java:96)
    at com.bea.wcp.sip.engine.server.SipServerTailModule$1.visit(SipServerTailModule.java:127)
    at com.bea.wcp.sip.engine.server.SipServerTailModule.visitAllContexts(SipServerTailModule.java:112)
    Truncated. see log file for complete stacktrace
Caused By: java.lang.LinkageError: loader constraint violation in interface itable initialization: when resolving method "org.springframework.ui.freemarker.FreeMarkerConfigurationFactory.setResourceLoader(Lorg/springframework/core/io/ResourceLoader;)V" the class loader (instance of weblogic/utils/classloaders/GenericClassLoader) of the current class, org/springframework/web/servlet/view/freemarker/FreeMarkerConfigurer, and the class loader (instance of weblogic/utils/classloaders/ChangeAwareClassLoader) for interface org/springframework/context/ResourceLoaderAware have different Class objects for the type org/springframework/core/io/ResourceLoader used in the signature
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
    at java.lang.Class.privateGetPublicMethods(Class.java:2547)
    at java.lang.Class.getMethods(Class.java:1410)
    at com.bea.wcp.sip.engine.server.setup.SipAnnotationData.classAnnotationParsing(SipAnnotationData.java:344)
    Truncated. see log file for complete stacktrace
> 

weblogic的版本為10.3.6.0

Answer 1

發生這種沖突的原因可能是您的應用程序之一在jar的其中一個中有一個類（org / springframework / core / io / ResourceLoader），而該類與weblogic的嵌入式jar之一存在沖突（ http://www.findjar.com/class/ org / springframework / core / io / ResourceLoader.html ）和同名的類。

Answer 2

此問題是由於JVM在永久代 （ Perm Gen ）中空間不足。

在setDomainEnv.sh的Admin Server的java選項中增加Perm Gen空間。

可以根據需要使用

-XX：MaxPermSize和-XX：PermSize

JVM選項。

需要設置以下內容：

USER_MEM_ARGS=-Xms2048m -Xms2048m -XX:PermSize=512 -XX:MaxPermSize=1024

然后，嘗試重新啟動Admin Server 。

如果這些參數沒有問題，則

可以編輯node.properties文件以更改以下參數：

- SecureListener = false(by default is true)
- StartScriptEnabled = true 
- StopScriptEnabled = true