¡@
java Programming Glossary: gcbitmap size exceeds Vm budget error android http://stackoverflow.com/questions/10737582/bitmap-size-exceeds-vm-budget-error-android done all the things like recycle set null and then called GC still I have same error.. creating bitmap.... enter code here.. we check the logcat there is always a log comes up saying GC_ but I could not understand that so I found an amazing doc on..
Error java.lang.OutOfMemoryError: GC overhead limit exceeded http://stackoverflow.com/questions/1393486/error-java-lang-outofmemoryerror-gc-overhead-limit-exceeded java.lang.OutOfMemoryError GC overhead limit exceeded I get this error message as I execute.. as I execute my JUnit tests java.lang.OutOfMemoryError GC overhead limit exceeded I know what an OutOfMemoryError is but.. exceeded I know what an OutOfMemoryError is but what does GC overhead limit mean How can I solve this java garbage collection..
Forcing Garbage Collection in Java? http://stackoverflow.com/questions/1481178/forcing-garbage-collection-in-java and Runtime.gc but they don't force they suggest to do GC but actually no force occurs. Please I need that horribly. Best..
Why would you ever implement finalize()? http://stackoverflow.com/questions/158174/why-would-you-ever-implement-finalize rarely needed. And as commenters point out it comes with GC overhead. Only use if you need that belt and suspenders safety...
Garbage Collection in Java and Circular References http://stackoverflow.com/questions/1910194/garbage-collection-in-java-and-circular-references garbage collection share improve this question Java's GC considers objects garbage if they aren't reachable through a..
Why did java have the reputation of being slow? [closed] http://stackoverflow.com/questions/2163411/why-did-java-have-the-reputation-of-being-slow high level languages now and due to objects and use of GC rather than explicit memory allocation. Plus bad library decisions... in from the beginning. This is partially from good GC rather than explicit allocation which is more friendly to lots..
What does JVM flag CMSClassUnloadingEnabled actually do? http://stackoverflow.com/questions/3334911/what-does-jvm-flag-cmsclassunloadingenabled-actually-do a memory leak. If you enable CMSClassUnloadingEnabled the GC will sweep PermGen too and remove classes which are no longer.. used. EDIT You will also have to enable UseConcMarkSweepGC thanks to Sam Hasler . See this answer http stackoverflow.com..
Where do Java and .NET string literals reside? http://stackoverflow.com/questions/372547/where-do-java-and-net-string-literals-reside the heap. I.e. interned strings are not collected during GC because the interned table roots them. share improve this answer..
How to find a Java Memory Leak http://stackoverflow.com/questions/40119/how-to-find-a-java-memory-leak any cache DB related initialization to take place. Run GC and take memory snapshot. Run the operation again. Depending.. operation may need to be run several to many times. Run GC and take memory snapshot. Run a diff for 2 snapshots and analyze..
If profiler is not the answer, what other choices do we have? http://stackoverflow.com/questions/4387895/if-profiler-is-not-the-answer-what-other-choices-do-we-have whether the program is in I O except for user input or in GC or in a tight CPU loop or whatever. Sampling should read the..
http://stackoverflow.com/questions/66540/system-gc-in-java parameters exactly does the VM decide to do or not do a GC when it sees a System.gc Are there maybe examples in which case..
How do I detect which kind of JRE is installed — 32bit vs. 64bit http://stackoverflow.com/questions/807263/how-do-i-detect-which-kind-of-jre-is-installed-32bit-vs-64bit enabled J9VM 20060915_08260_lHdSMR JIT 20060908_1811_r8 GC 20060906_AA java.vm.name IBM J9 VM java.vm.specification.name..
Why is char[] preferred over String for passwords? http://stackoverflow.com/questions/8881291/why-is-char-preferred-over-string-for-passwords aside from reflection you can get rid of the data before GC kicks in. With an array you can explicitly wipe the data after.. in memory. I believe this is implementation specific the GC may clear all memory as it goes to avoid this sort of thing...
Java Garbage Collection Log messages http://stackoverflow.com/questions/895444/java-garbage-collection-log-messages dump garbage collection information into the logs verbose GC . I am unsure of what the garbage collection entries in the.. For example in 109884K 14201K 139904K is the memory before GC 109884k and then it is reduced to 14201K. How is the third number.. Why would we require a second set of numbers 8109.128 GC PSYoungGen 109884K 14201K 139904K 691015K 595332K 1119040K 0.0454530..
Program not accessing method paintComponent() of extended JPanel class http://stackoverflow.com/questions/12226198/program-not-accessing-method-paintcomponent-of-extended-jpanel-class gd ge.getDefaultScreenDevice GraphicsConfiguration gc gd.getDefaultConfiguration BufferedImage image gc.createCompatibleImage.. gc gd.getDefaultConfiguration BufferedImage image gc.createCompatibleImage w h Graphics2D g2d image.createGraphics..
Java rectangle collision detection confusion http://stackoverflow.com/questions/13825515/java-rectangle-collision-detection-confusion size public Play int state public void init GameContainer gc StateBasedGame sbg throws SlickException worldMap new Image.. initially on startup public void render GameContainer gc StateBasedGame sbg Graphics g throws SlickException worldMap.draw.. everything from screen public void update GameContainer gc StateBasedGame sbg int delta throws SlickException Input input..
Why is it a bad practice to call System.gc? http://stackoverflow.com/questions/2414105/why-is-it-a-bad-practice-to-call-system-gc is it a bad practice to call System.gc After answering to a question about how to force free objects.. in Java the guy was clearing a 1.5GB HashMap with System.gc I've been told it's a bad practice to call System.gc manually.. I've been told it's a bad practice to call System.gc manually but the comments seemed mitigated about it. So much..
Java, how to draw constantly changing graphics http://stackoverflow.com/questions/3742731/java-how-to-draw-constantly-changing-graphics Point p MouseInfo.getPointerInfo .getLocation Graphics2D gc this.image.createGraphics try for int x 0 x 8 x for int y.. try for int x 0 x 8 x for int y 0 y 8 y gc.setColor robot.getPixelColor p.x 4 x p.y 4 y gc.fillOval.. y 8 y gc.setColor robot.getPixelColor p.x 4 x p.y 4 y gc.fillOval x step y step step 3 step 3 gc.setColor Color.GRAY..
How do I write a correct micro-benchmark in Java? http://stackoverflow.com/questions/504103/how-do-i-write-a-correct-micro-benchmark-in-java Rule 2 Always run with XX PrintCompilation verbose gc etc. so you can verify that the compiler and other parts of..
Know of any Java garbage collection log analysis tools? http://stackoverflow.com/questions/541832/know-of-any-java-garbage-collection-log-analysis-tools on a Sun Java 1.4.2 JVM with the following flags verbose gc XX PrintGCTimeStamps XX PrintGCDetails The log output looks..
Export PDF pages to a series of images in Java http://stackoverflow.com/questions/550129/export-pdf-pages-to-a-series-of-images-in-java gs ge.getDefaultScreenDevice GraphicsConfiguration gc gs.getDefaultConfiguration bimage gc.createCompatibleImage.. gc gs.getDefaultConfiguration bimage gc.createCompatibleImage image.getWidth null image.getHeight null..
Remove Top-Level Container on Runtime http://stackoverflow.com/questions/6309407/remove-top-level-container-on-runtime windowClosing Runtime runtime Runtime.getRuntime runtime.gc runtime.runFinalization try Thread.sleep 1000 catch InterruptedException.. Runtime.getRuntime .runFinalization Runtime.getRuntime .gc runProcess false pastRemWins private void pastRemWins.. event is processed on the EventQueue . Even then gc is a suggestion. Addendum Another way to see the nightmare is..
How to handle events from keyboard and mouse in full screen exclusive mode in java? http://stackoverflow.com/questions/7456227/how-to-handle-events-from-keyboard-and-mouse-in-full-screen-exclusive-mode-in-ja systems setIgnoreRepaint true GraphicsConfiguration gc device.getDefaultConfiguration frame new JFrame gc device.setFullScreenWindow.. gc device.getDefaultConfiguration frame new JFrame gc device.setFullScreenWindow frame if device.isDisplayChangeSupported..
List of useful environment settings in Java http://stackoverflow.com/questions/7585699/list-of-useful-environment-settings-in-java j gd.toString gd.getIDstring GraphicsConfiguration gc gd.getConfigurations for int i 0 i gc.length i sb.append.. gc gd.getConfigurations for int i 0 i gc.length i sb.append dataPairToTableRow Config i int gc i.. gc.length i sb.append dataPairToTableRow Config i int gc i .getBounds .getWidth x int gc i .getBounds .getHeight ..
Java Garbage Collection Log messages http://stackoverflow.com/questions/895444/java-garbage-collection-log-messages do well to read anyway . The command line option verbose gc causes information about the heap and garbage collection to.. is similar. The format of the output produced by verbose gc is subject to change in future releases. I'm not certain why..
|