org.mvel2.PropertyAccessException: [Error: null pointer: xsetz.indexOf('.')] [Near : {... xsetz.indexOf('.') > 0 ....}] ^ [Line: 1, Column: 1] at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:450) at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(ReflectiveAccessorOptimizer.java:163) at org.mvel2.optimizers.dynamic.DynamicOptimizer.optimizeAccessor(DynamicOptimizer.java:80) at org.mvel2.ast.ASTNode.optimize(ASTNode.java:159) at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:115) at org.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:125) at org.mvel2.MVELRuntime.execute(MVELRuntime.java:85) at org.mvel2.compiler.CompiledExpression.getDirectValue(CompiledExpression.java:123) at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:119) at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:113) at org.mvel2.MVEL.executeExpression(MVEL.java:929) at com.creating.services.mdruleexecute.MdruleMain.lambda$runMdResult$0(MdruleMain.java:85) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NullPointerException: null at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(ReflectiveAccessorOptimizer.java:383) ... 14 common frames omitted

这是一个 MVEL2 库的异常，可能是由于使用了 null 对象的属性或方法导致的。具体来说，这个异常可能是因为变量 "xsetz" 为 null 或者不包含字符串 "." 而导致的。您可以检查代码中与变量 "xsetz" 相关的部分，确保在使用它之前对其进行了正确的初始化或检查。另外，您可以使用调试工具逐行检查代码，以确定导致异常的确切位置。

相关问题

Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [ApplicationContext.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are: PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'dataSource' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/jdbc/datasource/TransactionAwareDataSourceProxy

根据提供的引用内容，出现"Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource \[ApplicationContext.xml\]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are: PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'dataSource' threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/jdbc/datasource/TransactionAwareDataSourceProxy"的错误是由于配置文件中的Bean出现问题导致的。具体原因可能是在配置文件中引入的某个类或jar包无法找到，或者是某个属性的设置出现了异常。根据引用\[1\]中的描述，可能是由于org.springframework.core.NestedIOException类的错误导致的。另外，引用\[2\]中提到了一种可能的解决方法，即更改引入的jar包的版本。最后，引用\[3\]中给出了一个可能的配置文件中的错误，即mapperLocations属性的值设置不正确。根据这些信息，可以尝试检查配置文件中的Bean定义，确保引入的类和jar包正确，并检查属性的设置是否正确。
#### 引用[.reference_title]
- *1* *3* [org.springframework.beans.factory.BeanCreationException: Error creating bean with name '****'](https://blog.csdn.net/weixin_39319948/article/details/81326288)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFa](https://blog.csdn.net/javayjc/article/details/104395627)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^control,239^v3^insert_chatgpt"}} ] [.reference_item]
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Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource1' defined in URL [jar:file:/usr/local/tomcat/webapps/nems-hbgl/WEB-INF/lib/iplat4j-core-6.4.1.jar!/spring/framework/context/platApplicationContext-db-multidb-dbcp.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are: PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'driverClassName' threw exception; nested exception is java.lang.RuntimeException: Failed to load driver class in either of HikariConfig class loader or Thread context classloader

根据你提供的信息，这是一个Spring Bean创建异常，具体原因是设置属性值时出错，其中嵌套的异常是一个属性批处理更新异常，其中包含一个属性访问异常。这个异常的具体原因是属性'driverClassName' 抛出了异常，原因是无法加载驱动程序类。可能是由于驱动程序类没有正确地添加到类路径中或驱动程序类的名称不正确。建议检查驱动程序类是否正确添加到类路径中，并检查驱动程序类名称是否正确。