illegalargumentexception

问题 I'm storing some images on Parse Server for my Instagram Clone app. When trying to retrieve them using: ParseFile file = imageToDisplay.getParseFile("image"); byte[] data = file.getData(); everything works just fine as long as there are still some images in cache but if I reinstall the app or try to get data of other users images I get an exception: 2019-12-12 14:24:44.005 15502-15502/com.example.instagramclone E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.instagramclone, PID:

问题 This is probably a simple one to answer but I can't seem to get right and thought I would ask. I am getting a java.lang.IllegalArgumentException and a java.lang.NullPointerException Here is the error log 03-20 13:13:22.872: E/SurfaceTextureClient(565): dequeueBuffer failed (No such device) 03-20 13:13:22.879: E/BaseSurfaceHolder(565): Exception locking surface 03-20 13:13:22.879: E/BaseSurfaceHolder(565): java.lang.IllegalArgumentException 03-20 13:13:22.879: E/BaseSurfaceHolder(565): at

问题 I'm using Elasticsearch latest version on Ubuntu 16.04 and I'm having a little issue on putting data on it. here is my json document (relevant part of it) { "products" : { "232CDFDW89ENUXRB" : { "sku" : "232CDFDW89ENUXRB", "productFamily" : "Compute Instance", "attributes" : { "servicecode" : "AmazonEC2", "location" : "US East (N. Virginia)", "locationType" : "AWS Region", "instanceType" : "d2.8xlarge", "currentGeneration" : "Yes", "instanceFamily" : "Storage optimized", "vcpu" : "36",

问题 I'm using Elasticsearch latest version on Ubuntu 16.04 and I'm having a little issue on putting data on it. here is my json document (relevant part of it) { "products" : { "232CDFDW89ENUXRB" : { "sku" : "232CDFDW89ENUXRB", "productFamily" : "Compute Instance", "attributes" : { "servicecode" : "AmazonEC2", "location" : "US East (N. Virginia)", "locationType" : "AWS Region", "instanceType" : "d2.8xlarge", "currentGeneration" : "Yes", "instanceFamily" : "Storage optimized", "vcpu" : "36",

问题 I have class AClass and a method someMethod that gets an Object array as parameter. public class AClass { public void someMethod(Object[] parameters) { } } In main, when I try to invoke this method on the the object that I have created and give an object array as a parameter to this method Object[] parameters; // lets say this object array is null Class class = Class.forName("AClass"); Object anObject = class.newInstance(); Method someMethod = class.getDeclaredMethod("someMethod", parameters

问题 I am trying to get Access token using Angular 4. When the user logIn using Google I get the following Data. authToken // * id email . . . name I think that the variable authToken is not the access token because when I try to verify it using the following code ( spring boot), GoogleIdTokenVerifier verifier = new GoogleIdTokenVerifier.Builder(new NetHttpTransport(), JacksonFactory.getDefaultInstance()) .setAudience(Collections.singletonList( "ID_CLIENT") .build(); try { GoogleIdToken idToken =

问题 How do I switch between JPanels of different classes? I do not wish to use a Card Layout. I have 2 classes - MainPage & MenuPage . For instance, I would like to clear the contentPane (a JPanel ) @ MainPage and replace it with the content pane @ MenuPage . For testing purposes, I included a button @ MenuPage . Please see my following attempt - it gives an error: java.lang.IllegalArgumentException: adding a window to a container MainPage public class MainPage extends JFrame { private static

问题 I am creating an application. I have two kinds of view. ThumbView & GridView. For these views I am using two different FragmentStatePagerAdapters for ViewPager. With in the main layout, I have created a space to reuse that subview to load ThumbView or GridView based on the selection. public void loadThumbView() { LinearLayout subLayout= (LinearLayout)findViewById(R.id.subLayout); subLayout.removeAllViews(); View subView =(View)inflater.inflate(R.layout.thumb_layout, null); thumbViewPager=

问题 Hello Picasso+Android Users, I have used following version of Picasso and its working with following Transformation snippet: compile 'com.squareup.picasso:picasso:2.3.2' and created following Transformation for Image Transformation : public class ImageTransformation implements Transformation { int maxWidth; int maxHeight; public ImageTransformation(ImageView imageView) { this.maxWidth = imageView.getWidth(); this.maxHeight = imageView.getHeight(); } @Override public Bitmap transform(Bitmap

问题 The following code throws IllegalArgumentException : trait T{ val x: Long require(x > 0) } object T extends App{ val y = new T{ val x = 42L } } while the following does not: trait T{ def x(): Long require(x() > 0) } object T extends App{ val y = new T{ def x() = 42L } } Why is that? When is require() called? Why is the val even defined at that point? 回答1: Because def declares a method, which is put in the class by the compiler, so it exists as soon as it is compiled. In order to return