Error java lang OutOfMemoryError GC overhead limit exceeded

Question

I get this error message as I execute my JUnit tests   java lang OutOfMemoryError  GC overhead limit exceeded   I know what an OutOfMemoryError is  but what does GC overhead limit mean  How can I solve this

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You can also increase memory allocation and heap size by adding this to your gradle.properties file:

org.gradle.jvmargs=-Xmx2048M -XX\:MaxHeapSize\=32g

It doesn't have to be 2048M and 32g, make it as big as you want.

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increase javaMaxHeapsize in your build gradle Module app  file  dexOptions       javaMaxHeapSize  1g      to  Add this line in gradle    dexOptions           javaMaxHeapSize  4g

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Java heap size descriptions  xms  xmx  xmn   -Xms size in bytes  Example   java -Xms32m   Sets the initial size of the Java heap   The default size is 2097152  2MB    The values must be a multiple of  and greater than  1024 bytes  1KB    The -server flag increases the default size to 32M    -Xmn size in bytes  Example   java -Xmx2m   Sets the initial Java heap size for the Eden generation   The default value is 640K    The -server flag increases the default size to 2M    -Xmx size in bytes  Example   java -Xmx2048m   Sets the maximum size to which the Java heap can grow   The default size is 64M    The -server flag increases the default size to 128M    The maximum heap limit is about 2 GB  2048MB    Java memory arguments  xms  xmx  xmn  formatting  When setting the Java heap size  you should specify your memory argument using one of the letters    m    or    M    for MB  or    g    or    G    for GB  Your setting won   t work if you specify    MB    or    GB     Valid arguments look like this   -Xms64m or -Xms64M -Xmx1g or -Xmx1G Can also use 2048MB to specify 2GB Also  make sure you just use whole numbers when specifying your arguments  Using -Xmx512m is a valid option  but -Xmx0 5g will cause an error   This reference can be helpful for someone

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You need to increase the memory size in Jdeveloper go to setDomainEnv cmd   set WLS HOME  WL HOME  server     set XMS SUN 64BIT   256   set XMS SUN 32BIT   256   set XMX SUN 64BIT   3072   set XMX SUN 32BIT   3072   set XMS JROCKIT 64BIT   256   set XMS JROCKIT 32BIT   256   set XMX JROCKIT 64BIT   1024   set XMX JROCKIT 32BIT   1024    if   JAVA VENDOR     Sun        set WLS MEM ARGS 64BIT   -Xms256m -Xmx512m       set WLS MEM ARGS 32BIT   -Xms256m -Xmx512m     else       set WLS MEM ARGS 64BIT   -Xms512m -Xmx512m       set WLS MEM ARGS 32BIT   -Xms512m -Xmx512m       and   set MEM PERM SIZE 64BIT -XX PermSize   256m   set MEM PERM SIZE 32BIT -XX PermSize   256m    if   JAVA USE 64BIT     true        set MEM PERM SIZE  MEM PERM SIZE 64BIT    else       set MEM PERM SIZE  MEM PERM SIZE 32BIT     set MEM MAX PERM SIZE 64BIT -XX MaxPermSize   1024m   set MEM MAX PERM SIZE 32BIT -XX MaxPermSize   1024m

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Just increase the heap size a little by setting this option in  Run   Run Configurations   Arguments   VM arguments  -Xms1024M -Xmx2048M   Xms - for minimum limit  Xmx - for maximum limit

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Quoting from Oracle s article  quot Java SE 6 HotSpot tm  Virtual Machine Garbage Collection Tuning quot    Excessive GC Time and OutOfMemoryError The parallel collector will throw an OutOfMemoryError if too much time is being spent in garbage collection  if more than 98  of the total time is spent in garbage collection and less than 2  of the heap is recovered  an OutOfMemoryError will be thrown  This feature is designed to prevent applications from running for an extended period of time while making little or no progress because the heap is too small  If necessary  this feature can be disabled by adding the option -XX -UseGCOverheadLimit to the command line   EDIT  looks like someone can type faster than me

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If you are sure there are no memory leaks in your program  try to    Increase the heap size  for example -Xmx1g    Enable the concurrent low pause collector -XX  UseConcMarkSweepGC   Reuse existing objects when possible to save some memory    If necessary  the limit check can be disabled by adding the option -XX -UseGCOverheadLimit to the command line

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For me  the following steps worked    Open the eclipse ini file Change  -Xms40m -Xmx512m   to  -Xms512m -Xmx1024m  Restart Eclipse   See here

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I m working in Android Studio and encountered this error when trying to generate a signed APK for release   I was able to build and test a debug APK with no problem  but as soon as I wanted to build a release APK  the build process would run for minutes on end and then finally terminate with the  Error java lang OutOfMemoryError  GC overhead limit exceeded   I increased the heap sizes for both the VM and the Android DEX compiler  but the problem persisted  Finally  after many hours and mugs of coffee it turned out that the problem was in my app-level  build gradle  file - I had the  minifyEnabled  parameter for the release build type set to  false   consequently running Proguard stuffs on code that hasn t been through the code-shrinking  process  see https   developer android com studio build shrink-code html    I changed the  minifyEnabled  parameter to  true  and the release build executed like a dream     In short  I had to change my app-level  build gradle  file from             buildTypes       release           minifyEnabled false         proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro          signingConfig signingConfigs sign config release           debug           debuggable true         signingConfig signingConfigs sign config debug                  to             buildTypes       release           minifyEnabled true         proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro          signingConfig signingConfigs sign config release           debug           debuggable true         signingConfig signingConfigs sign config debug

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It s usually the code  Here s a simple example   import java util     public class GarbageCollector        public static void main String    args             System out printf  Testing    n            List lt Double gt  list   new ArrayList lt Double gt             for  int outer   0  outer  lt  10000  outer                      list   new ArrayList lt Double gt  10000      BAD                list   new ArrayList lt Double gt        WORSE             list clear       BETTER              for  int inner   0  inner  lt  10000  inner                      list add Math random                                if  outer   1000    0                    System out printf  Outer loop at  d n   outer                                    System out printf  Done  n              Using Java 1 6 0 24-b07 on a Windows 7 32 bit   java -Xloggc gc log GarbageCollector   Then look at gc log   Triggered 444 times using BAD method Triggered 666 times using WORSE method  Triggered 354 times using BETTER method   Now granted  this is not the best test or the best design but when faced with a situation where you have no choice but implementing such a loop or when dealing with existing code that behaves badly  choosing to reuse objects instead of creating new ones can reduce the number of times the garbage collector gets in the way

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The following worked for me  Just add the following snippet   android           compileSdkVersion 25         buildToolsVersion  25 0 1   defaultConfig           applicationId  yourpackage          minSdkVersion 10         targetSdkVersion 25         versionCode 1         versionName  1 0          multiDexEnabled true       dexOptions           javaMaxHeapSize  4g

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Solved  Just add  org gradle jvmargs -Xmx1024m in  gradle properties and if it does not exist  create it

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To increase heap size in IntelliJ IDEA follow the following instructions  It worked for me   For Windows Users   Go to the location where IDE is installed and search for following   idea64 exe vmoptions   Edit the file and add the following   -Xms512m -Xmx2024m -XX MaxPermSize 700m -XX ReservedCodeCacheSize 480m   That is it

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try this  open the build gradle file      android           dexOptions              javaMaxHeapSize    4g

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you can try to make changes on the server setting by referring to this image and increase the memory size for processing process changes highlighted in yellow  you can also make changes to java heap by opening cmd-  set  java opts -Xmx2g 2g 2gigabytes  depending upon the complexity of your program  try to use less constant variable and temp variables

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Rebooting my MacBook fixed this issue for me

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I don t know if this is still relevant or not  but just want to share what worked for me   Update kotlin version to latest available  https   blog jetbrains com kotlin category releases   and it s done

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In Netbeans  it may be helpful to design a max heap size  Go to Run    Set Project Configuration    Customise  In the Run of its popped up window  go to VM Option  fill in -Xms2048m -Xmx2048m  It could solve heap size problem

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Cause for the error according to the Java  8  Platform  Standard Edition Troubleshooting Guide   emphasis and line breaks added             GC overhead limit exceeded  indicates that the garbage collector is running all the time and Java program is making very slow progress        After a garbage collection  if the Java process is spending more than approximately 98  of its time doing garbage collection and if it is recovering less than 2  of the heap and has been doing so far the last 5  compile time constant  consecutive garbage collections  then a java lang OutOfMemoryError is thrown           Increase the heap size if current heap is not enough  If you still get this error after increasing heap memory  use memory profiling tools like MAT   Memory analyzer tool    Visual VM etc and fix memory leaks  Upgrade JDK version to latest version   1 8 x  or at least 1 7 x and use G1GC algorithm    The throughput goal for the G1 GC is 90 percent application time and 10 percent garbage collection time Apart from setting heap memory with -Xms1g -Xmx2g   try  -XX  UseG1GC -XX G1HeapRegionSize n -XX MaxGCPauseMillis m   -XX ParallelGCThreads n -XX ConcGCThreads n    Have a look at some more related questions regarding G1GC   Java 7  JDK 7  garbage collection and documentation on G1 Java G1 garbage collection in production Oracle technetwork article for GC finetuning

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This message means that for some reason the garbage collector is taking an excessive amount of time  by default 98  of all CPU time of the process  and recovers very little memory in each run  by default 2  of the heap    This effectively means that your program stops doing any progress and is busy running only the garbage collection at all time   To prevent your application from soaking up CPU time without getting anything done  the JVM throws this Error so that you have a chance of diagnosing the problem   The rare cases where I ve seen this happen is where some code was creating tons of temporary objects and tons of weakly-referenced objects in an already very memory-constrained environment   Check out the Java GC tuning guide  which is available for various Java versions and contains sections about this specific problem    Java 11 tuning guide has dedicated sections on excessive GC for different garbage collectors    for the Parallel Collector for the Concurrent Mark Sweep  CMS  Collector there is no mention of this specific error condition for the Garbage First  G1  collector   Java 8 tuning guide and its Excessive GC section Java 6 tuning guide and its Excessive GC section

[java] Error java.lang.OutOfMemoryError: GC overhead limit exceeded

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