在Java中,遇到错误信息 "cannot invoke "java.lang.Integer.intValue()" because the return value of" 通常意味着你试图调用 intValue() 方法的对象并不是一个 Integer 类型。以下是对这个错误的详细分析和解决方案: 1. 分析用户提供的错误信息 错误信息表明,你尝试调用 intValue() 方法,但是调用它的对象并不...
NullPointerException是Java种一个常见的RuntimeException，正如阿里的Java开发手册所说，对于Java程序员来说...
" is null java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.TreeMap.get(Object)" is null at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122...
[10:31:56] [Server thread/WARN]: [FastAsyncWorldEdit] Task #737285 for FastAsyncWorldEdit v2.3.1-SNAPSHOT-210;fd00635 generated an exception java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because "this.legacyCombinedId" is null at com.sk89q.worldedit.world....
Cannot invoke quot;java.lang.Integer.intValue()quot; because the return value of quot;java.util.HashMap.get(Object)quot; is null,这个错误。。。_牛客网_牛客在手,offer不愁
Cannot invoke com.flyoa.entity.IdEntity.setId on bean class 'class com.flyoa.entity.auth.Role' - argument type mismatch - had objects of type "java.lang.String" but expected signature "java.lang.Integer" File: org/apache/commons/beanutils/PropertyUtilsBean.java ...
at com.xujin.action.ShowUserAllAriticle.execute(ShowUserAllAriticle.java:55) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 而出错部分的代码是如下写的: public int queryUserAllCount(String username) { List find = this.getHibernateTemplate().find("select count(*) from Article art...
lang.NullPointerException: Cannot invoke "java.net.URL.getPath()" because the return value of "java.lang.ClassLoader.getResource(String)" is null at test.AboutPath.main(AboutPath.java:6) 如果通过这种方式找.java文件,只能找其对应的.class文件;可以找src目录下其他类型的文件,但是输出的路径还是在...
org.apache.catalina.core.ApplicationDispatcher invoke SEVERE: Servlet.service() for servlet jsp threw exception javax.el.ELException:Cannot convert 0 of type class java.lang.Integer to class java.lang.Boolean at org.apache.el.lang.ELSupport.coerceToBoolean(ELSupport.java:188) ...
Describe the bug Lunching 1.18 with mods and it shows this error in the latest.txt file after its crash: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.Map.get(Object)"...