AI代码解释 // MyClass.javapublicclassMyClass{publicstaticintMY_FIELD=10;}// Main.javapublicclassMain{publicstaticvoidmain(String[]args){System.out.println(MyClass.MY_FIELD);}} 如果我们修改MyClass,删除了MY_FIELD,但没有重新编译Main.java,运行时就会抛出NoSuchFieldError。 解决方法 确保类库版本一致...
ツリーgetUnknownTree() 未知のツリーを返します。 クラス java.lang.Objectから継承されたメソッド clone、equals、finalize、getClass、hashCode、notify、notifyAll、wait、wait、wait クラス java.lang.Throwableから継承されたメソッド addSuppressed、fillInStackTrace、getCause、getLocalizedMessage、getMessa...
emptyMap(); } Map<String,PropertyInfo> map = new TreeMap<>(); for (Method method : methods) { if (!Modifier.isStatic(method.getModifiers())) { Class<?> returnType = method.getReturnType(); String name = method.getName(); switch (method.getParameterCount()) { case 0: if (return...
(66) The requested operation can only be performed on an entry that has no entries beneath it in the directory tree (in other words, a "leaf" entry). For example, you cannot delete or rename an entry if the entry has subentries beneath it. ...
call.setTargetEndpointAddress("http://localhost:8080/ormrpc/services/WStettreeFacade"); call.setReturnType(new QName("urn:lang.java","String")); call.setReturnClass(String.class); call.setReturnQName(new QName("","addTestReturn")); ...
Returns the next OracleException in the chain ornullif none. voidsetNextException(OracleExceptionnextException) Adds anOracleExceptionto the chain of exceptions. Methods inherited from class java.lang.Throwable fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrac...
Java在操作ArrayList、HashMap、TreeMap等容器类时,遇到了java.util.ConcurrentModificationException异常。以ArrayList为例,如下面的代码片段: import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.concurrent.CopyOnWriteArrayList; ...
Exception in thread "main"java.lang.NullPointerException at finaldemo.NPEDemo.method1(NPEDemo.java:18) at finaldemo.NPEDemo.main(NPEDemo.java:9) 分析错误原因: 其实就是尽管你在之前做了对象不为空的判断,但你并不能保证对象中的值不为空,而且这时候去级联调用就会抛 NPE 。
简介:springboot项目出现Exception in thread “main“ java.lang.NoClassDefFoundError: javax/servlet/Filter 学习过程中遇到了如下问题: Exception in thread "main" java.lang.NoClassDefFoundError: javax/servlet/Filterat java.base/java.lang.ClassLoader.defineClass1(Native Method)at java.base/java.lang.ClassLoa...
(FileInputStream.java:76) at java.io.FileInputStream.<init>(FileInputStream.java:103) at java.io.FileReader.<init>(FileReader.java:66) at miui.content.res.ThemeCompatibilityLoader.getVersion(ThemeCompatibilityLoader.java:108) at miui.content.res.ThemeCompatibilityLoader.getConfigDocumentTree(Theme...