DANGER The use of this program can crash or damage your computer! Only use it, if you know what are you doing! DANGER
jproblemgenerator creates scenarios in which Java programs leak memory or crash the JVM. It is intended to train the use of debugging tools like VisualVM or Eclipse Memory Analyzer.
Always run it with the option -Xmx1024m to prevent it from using all RAM. Change the amount of memory according to your hardware.
java -Xmx1024m -jar jproblemgenerator-jar-with-dependencies.jar --> prints help
java -Xmx1024m -jar jproblemgenerator-jar-with-dependencies.jar -bigHashMap --> creates a big HashMap and waits for you to hit enter to terminate. That gives you the chance to take a dump of the program.
Help:
usage: jproblemgenerator [-bigArrayInt] [-bigArrayInteger] [-bigHashMap] [-bigList] [-crashJVM]
[-hashSetWithDuplicateEntries] [-heapOverflow] [-internStrings] [-leakedSystemProperties]
[-manyThreads] [-stackOverflow]
-bigArrayInt,--create-big-array-int Creates a big array of ints
-bigArrayInteger,--create-big-array-integer Creates a big array of
integers
-bigHashMap,--create-big-hashmap Creates a big HashMap
-bigList,--create-big-list Creates a big List
-crashJVM,--crash-jvm Crashes the JVM.
-hashSetWithDuplicateEntries,--create-hashSet-with-duplicate-entries Creates a HashSet with
duplicate entries.
-heapOverflow,--create-heapoverflow Creates a heapoverflow.
-internStrings,--create-intern-strings Creates interalized strings.
-leakedSystemProperties,--create-leaked-system-propertes Creates a memory leak by
creating system properties.
-manyThreads,--create-many-threads Creates many threads.
-stackOverflow,--create-stackoverflow Creates a stackoverflow.
Just compile: mvn clean install
Compile and create runnable jar: mvn clean compile assembly:single The runnable jar will be created in the target folder.