This error message… java.lang.OutOfMemoryError: unable to create new native thread …implies that JVM was unable to create any new native thread as your system have run OutOfMemory OutOfMemoryError Out of Memory error messages can appear when you attempt to start new programs or you try to use programs that are already running, even though you … Read more
I’ve created download page which allows user to download up to 4gb (may be more) few months ago. Here is my working snippet: private void TransmitFile(string fullPath, string outFileName) { System.IO.Stream iStream = null; // Buffer to read 10K bytes in chunk: byte[] buffer = new Byte[10000]; // Length of the file: int length; // … Read more
The method decodeSampledBitmapFromResource is not memory efficient because it uses 3 streams: the ByteArrayOutputStream baos, ByteArrayInputStream is1 and ByteArrayInputStream is2, each of those stores the same stream data of the image (one byte array for each). And when I test with my device (LG nexus 4) to decode an 2560×1600 image on SDcard to target … Read more
Changing the heap size in netbeans.conf only changes the heap for NetBeans itself, not for applications run through NetBeans. The correct way is to right-click on the project and select “Properties” and then “Run”; there you can set the VM options appropriately (-Xmx256m, for instance). It should look something like this: (Thanks to VonC for … Read more
Characters are stored on 16 bits When you see that 256*2**20 characters are in a string, that does not mean that 256 megabytes of memory is allocated. JavaScript stores every character on two bytes (as it is utf16 encoded by the specification). A word about ropes Todays browsers (even IE) store strings in an advanced … Read more
You can use another bitmap-config to heavily decrease the size of the images. The default is RGB-config ARGB8888 which means four 8-bit channels are used (red, green, blue, alhpa). Alpha is transparency of the bitmap. This occupy a lot of memory – imagesize X 4. So if the imagesize is 4 megapixel 16 megabytes will … Read more
The Java Machine Specification states in section 6.3 (emphasis mine): OutOfMemoryError: The Java virtual machine implementation has run out of either virtual or physical memory, and the automatic storage manager was unable to reclaim enough memory to satisfy an object creation request. So the JVM does give a guarantee that it will try what it … Read more
Having enormous blocks of memory is never a good idea, even in 64bit. You get big problems with contiguous memory and fragmentation. The problem here is finding a contiguous block. You could try enabling 3gb mode (which might help it find a few more bytes) but I really advise against it. The answers here are: … Read more
Try to use java.nio.MappedByteBuffer. http://docs.oracle.com/javase/7/docs/api/java/nio/MappedByteBuffer.html You can map a file’s content onto memory without copying it manually. High-level Operating Systems offer memory-mapping and Java has API to utilize the feature. If my understanding is correct, memory-mapping does not load a file’s entire content onto memory (meaning “loaded and unloaded partially as necessary”), so I guess … Read more
We solved our current issue untill able to fix all occurances in our application by using the following VM-parameter: -Dcom.sun.xml.bind.v2.bytecode.ClassTailor.noOptimize=true I hope this will help others with similar issues…