illegalargumentexception

问题 I am receiving the following error when trying to access font file : 011.08.31 12:12:42.704 ERROR [PDFOutputHandler] - Unable to resolve Unicode font java.lang.IllegalArgumentException: URI scheme is not "file" at java.io.File.<init>(File.java:366) at com.xx.reports.output.handler.PDFOutputHandler.addUnicodeFont(PDFOutputHandler.java:393) at com.xx.reports.output.handler.PDFOutputHandler.renderOutput(PDFOutputHandler.java:104) at com.xx.reports.output.handler.PDFOutputHandler.renderOutput

问题 Using android studio 2.0 stable version and previous version 1.5 I on Ubuntu, I always get this exception all the time. Any ideas? It appears in the EventLog 来源： https://stackoverflow.com/questions/36523377/android-studio-2-0-illegalargumentexception-button-doesnt-exist-0

问题 I got this error from the user logs on an android app I created. I have been unable to replicate the error thus far. Any help would be extremely appreciated. The error is: java.lang.IllegalArgumentException: provider=gps at android.os.Parcel.readException(Parcel.java:1326) at android.os.Parcel.readException(Parcel.java:1276) at android.location.ILocationManager$Stub$Proxy.requestLocationUpdates(ILocationManager.java:646) at android.location.LocationManager._requestLocationUpdates

问题 I was wondering if any knows hows to get the size of an array object using reflection? I have a Vehicles component containing an array object of type Car . Vehicles.java public class Vehicles{ private Car[] cars; // Getter and Setters } Car.java public class Car{ private String type; private String make; private String model; // Getter and Setters } I was wondering how I would be able to get the size of the cars array within the vehicles component using Java Reflection? I current have the

问题 I'm getting an error : IllegalArgumentException : Executable name has embedded quote, split the arguments While running the Runtime.getRuntime().exec(cmd, envTokens, file1); I'm using Windows7 and Java7 machine . Same line of code is working fine for other environments . Suggest me some way . 回答1: This happens because of a change in Java 7 update 21/Java 6 update 45. The solution to your problem is to refactor your code to use java.lang.ProcessBuilder instead. For instance: ProcessBuilder pb

问题 I have a problem with the CardLayout show method So I declare my CardLayout and apply it to my JPanel CardLayout cl = new CardLayout(); panel.setLayout(cl); Then I add a 2 panels into the CardLayout cl.addLayoutComponent(panel, "menuScreen"); cl.addLayoutComponent(panel1, "gameScreen"); I then have a JButton that when is clicked, I show the gameScreen public void mouseClicked(MouseEvent e) { if(e.getSource() == (startGame)) scenechange.show(panel,"gameScreen"); } The only problem is that it

问题 When writing a method, say, inside one of your DAO objects, and you dont want this method to accept certain input, for discussions sake, say it does not allow null arguments. How do you go about implementing that, taking into account this method is likely to be reused in the future by new team members. The way I do it is: In the interface, I document inside the method javadoc that arguments a, b and c cannot be null. Inside the method I check for null values first thing, and if any of a, b or

问题 When writing a method, say, inside one of your DAO objects, and you dont want this method to accept certain input, for discussions sake, say it does not allow null arguments. How do you go about implementing that, taking into account this method is likely to be reused in the future by new team members. The way I do it is: In the interface, I document inside the method javadoc that arguments a, b and c cannot be null. Inside the method I check for null values first thing, and if any of a, b or

问题 This question already has answers here : java.lang.IllegalArgumentException: Invalid <url-pattern> in servlet mapping (2 answers) Closed 3 years ago . I am trying to deploy a very simple & my first JSF application (following a really good tutorial by BalusC) on glassfish local server. I completed all the steps to create the application. And when I tried to deploy the application on the glassfish server, it just failed with the following exception message:- cannot Deploy Playground Deployment

问题 I have been trying to follow the Android tutorial on sharing files. I set up the FileProvider like this: On the main manifest xml: <provider android:name="android.support.v4.content.FileProvider" android:authorities="com.example.mysecondapp.fileprovider" android:exported="false" android:grantUriPermissions="true" > <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/filepaths" /> </provider> the res/xml/filpaths.xml file: <paths xmlns:android="http://schemas