out-of-memory

问题 I have made and MVC webapp in Java, but when I run it, once a day, it turns down again due to a memory error. This error is this: Exception in thread "http-apr-12136-exec-42" java.lang.OutOfMemoryError: Java heap space java.sql.SQLException: java.lang.OutOfMemoryError: Java heap space I have the hprof with the stats of the crash, where specific how is the memory used. If I open the hprof with the Eclipse Memory Analizer, I have this results: In rar: https://mega.co.nz/#!Ht41xJDJ

问题 I am not java expert. My code is reading a file into a String . This code gets executed every 5 minutes. The size of file varies. Sometimes it is 100 sometimes it is 1000 lines. I am experience Out Of Memory, after some days. The question I have is, when my codes goes out of scope of the Reading file function , does Java garbage collect the String? I am pretty confused by reading on the internet. Some people says it does not get deleted and use StringBuffer . // Demonstrate FileReader. import

问题 I'm using Volley library in my project but I have problem with OutOfMemory Exception. In my application I'm downloading thumbs and full size images from server via NetworkImageView using setImageUrl method. I'm using BitmapLruCache: public class BitmapLruCache extends LruCache<String, Bitmap> implements ImageLoader.ImageCache { public static int getDefaultLruCacheSize() { final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024); final int cacheSize = maxMemory / 8; return

问题 I'm using Volley library in my project but I have problem with OutOfMemory Exception. In my application I'm downloading thumbs and full size images from server via NetworkImageView using setImageUrl method. I'm using BitmapLruCache: public class BitmapLruCache extends LruCache<String, Bitmap> implements ImageLoader.ImageCache { public static int getDefaultLruCacheSize() { final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024); final int cacheSize = maxMemory / 8; return

问题 I am using AES to encrypt files. The problem first came when i tried to encrypt a large file. So i did some reading online and figured that i need to use a buffer and only encrypt bytes of data at a time. I divided my plaintext into chunks of 8192 bytes of data and then applied the encryption operation on each of these chunks but I am still getting the out of memory error. public static File encrypt(File f, byte[] key) throws Exception { System.out.println("Starting Encryption"); byte[]

问题 I am using AES to encrypt files. The problem first came when i tried to encrypt a large file. So i did some reading online and figured that i need to use a buffer and only encrypt bytes of data at a time. I divided my plaintext into chunks of 8192 bytes of data and then applied the encryption operation on each of these chunks but I am still getting the out of memory error. public static File encrypt(File f, byte[] key) throws Exception { System.out.println("Starting Encryption"); byte[]

问题 I'm trying to write a file with some amount of data using this: public static <T extends SomeClass> void writeFile(String buffer, Class<T> clazz, int fileNumber) { String fileType = ".txt"; File file = new File(clazz.getName()+fileNumber+fileType); PrintWriter printWriter = null; try { FileWriter writer = new FileWriter(file); printWriter = new PrintWriter(writer); printWriter.print(buffer);//error occurs here printWriter.flush(); printWriter.close(); System.out.println("created file: "+file

问题 We have a fairly simple program that's used for creating backups. I'm attempting to parallelize it but am getting an OutOfMemoryException within an AggregateException. Some of the source folders are quite large, and the program doesn't crash for about 40 minutes after it starts. I don't know where to start looking so the below code is a near exact dump of all code the code sans directory structure and Exception logging code. Any advice as to where to start looking? using System; using System

问题 I am trying to run the following program in Prolog. mama_mia1(A,M,LI,HI,LO,HO,AA) :- p1(A,M,LI,HI,LO,HO,PROGS), reverse(PROGS,PROG), atom_chars(AA,PROG), !. p1(_,_,LO,LO,LO,_,[]). p1(_,_,HO,HO,_,HO,[]). p1(_,_,LO,HO,LO,HO,[]). p1(_,_,X,LO,LO,HO,[]) :- X>LO,X<HO. p1(_,_,X,HO,LO,HO,[]) :- X>LO,X<HO. p1(_,_,LO,Y,LO,HO,[]) :- Y>LO,Y<HO. p1(_,_,HO,Y,LO,HO,[]) :- Y>LO,Y<HO. p1(_,_,X,Y,LO,HO,[]) :- X>LO,X<HO,Y>LO,Y<HO. p1(A,M,X,Y,LO,HO,PROG) :- ( (X1 is X+A, H1 is HO+1, X1<H1, Y1 is Y+A, Y1<H1 ) ->

问题 I am trying to run the following program in Prolog. mama_mia1(A,M,LI,HI,LO,HO,AA) :- p1(A,M,LI,HI,LO,HO,PROGS), reverse(PROGS,PROG), atom_chars(AA,PROG), !. p1(_,_,LO,LO,LO,_,[]). p1(_,_,HO,HO,_,HO,[]). p1(_,_,LO,HO,LO,HO,[]). p1(_,_,X,LO,LO,HO,[]) :- X>LO,X<HO. p1(_,_,X,HO,LO,HO,[]) :- X>LO,X<HO. p1(_,_,LO,Y,LO,HO,[]) :- Y>LO,Y<HO. p1(_,_,HO,Y,LO,HO,[]) :- Y>LO,Y<HO. p1(_,_,X,Y,LO,HO,[]) :- X>LO,X<HO,Y>LO,Y<HO. p1(A,M,X,Y,LO,HO,PROG) :- ( (X1 is X+A, H1 is HO+1, X1<H1, Y1 is Y+A, Y1<H1 ) ->