unsupportedoperation

Android connection error java.lang.UnsupportedOperationException

由 試著忘記壹切 提交于 2019-12-11 03:22:57
问题 I have a problem on android studio when I try to make a connection to a mysql database This is the code: public Connection getMySqlConnection() { /* Declare and initialize a sql Connection variable. */ Connection ret = null; try { /* Register for jdbc driver class. */ Class.forName("com.mysql.cj.jdbc.Driver"); /* Create connection url. */ String mysqlConnUrl = "jdbc:mysql://ip/ristorante?useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC"; /* db

java.lang.UnsupportedOperationException for removing a row from the javafx tableview

由 为君一笑 提交于 2019-12-02 04:12:37
问题 I am trying to delete the selected record from the tableview in javafx. Below is how I am populating the table with the data: public void setMainApp(MainAppClass mainApp){ this.mainApp = mainApp; FilteredList<FileModel> filteredData = new FilteredList<>(mainApp.getFileData(), p -> true); // 2. Set the filter Predicate whenever the filter changes. filterField.textProperty().addListener((observable, oldValue, newValue) -> { filteredData.setPredicate(files -> { // If filter text is empty,

java.lang.UnsupportedOperationException for removing a row from the javafx tableview

由 依然范特西╮ 提交于 2019-12-02 02:02:51
I am trying to delete the selected record from the tableview in javafx. Below is how I am populating the table with the data: public void setMainApp(MainAppClass mainApp){ this.mainApp = mainApp; FilteredList<FileModel> filteredData = new FilteredList<>(mainApp.getFileData(), p -> true); // 2. Set the filter Predicate whenever the filter changes. filterField.textProperty().addListener((observable, oldValue, newValue) -> { filteredData.setPredicate(files -> { // If filter text is empty, display all files. if (newValue == null || newValue.isEmpty()) { return true; } String lowerCaseFilter =

java.lang.UnsupportedOperationException: 'posix:permissions' not supported as initial attribute on Windows

由 本秂侑毒 提交于 2019-11-27 07:36:07
问题 I am using Java 7 File API. I wrote a class that is working fine on Ubuntu creating directories perfectly, but when I run same code on Windows then it is throwing error: Exception in thread "main" java.lang.UnsupportedOperationException: 'posix:permissions' not supported as initial attribute at sun.nio.fs.WindowsSecurityDescriptor.fromAttribute(Unknown Source) at sun.nio.fs.WindowsFileSystemProvider.createDirectory(Unknown Source) at java.nio.file.Files.createDirectory(Unknown Source) at java

Java List.add() UnsupportedOperationException

由 ＊爱你＆永不变心＊ 提交于 2019-11-26 12:07:18
I try to add objects to a List<String> instance but it throws an UnsupportedOperationException . Does anyone know why? My Java code: String[] membersArray = request.getParameterValues('members'); List<String> membersList = Arrays.asList(membersArray); for (String member : membersList) { Person person = Dao.findByName(member); List<String> seeAlso; seeAlso = person.getSeeAlso(); if (!seeAlso.contains(groupDn)){ seeAlso.add(groupDn); person.setSeeAlso(seeAlso); } } The error message: java.lang.UnsupportedOperationException java.util.AbstractList.add(Unknown Source) java.util.AbstractList.add

Java List.add() UnsupportedOperationException

由 女生的网名这么多〃 提交于 2019-11-26 02:50:14
问题 I try to add objects to a List<String> instance but it throws an UnsupportedOperationException . Does anyone know why? My Java code: String[] membersArray = request.getParameterValues(\'members\'); List<String> membersList = Arrays.asList(membersArray); for (String member : membersList) { Person person = Dao.findByName(member); List<String> seeAlso; seeAlso = person.getSeeAlso(); if (!seeAlso.contains(groupDn)){ seeAlso.add(groupDn); person.setSeeAlso(seeAlso); } } The error message: java
订阅 unsupportedoperation