The -disableassertions (-da) alternative applies to all class loaders also to procedure classes (which don’t have a category loader). There’s one exception to this rule: If the option is supplied with no arguments, then it doesn’t apply to system lessons. This can make it straightforward to disable assertions in all lessons aside from system classes. The -disablesystemassertions alternative allows you to disable assertions in all method classes.
print java/lang/String toString In the event you’re employing commands to the JIT compiler to carry out on strategies, then see the -XX:CompileCommand solution.
Specifies the most dimensions (in bytes) on the memory allocation pool in bytes. This price needs to be a a number of of 1024 and higher than two MB. Append the letter k or K to indicate kilobytes, m or M to indicate megabytes, or g or G to point gigabytes.
The only real time that you simply may need to disable This is often on Mac OS, where its use imposes a maximum of 10240, which can be reduced than the actual program greatest.
This is the commercial characteristic that requires you to definitely also specify the -XX:+UnlockCommercialFeatures possibility. This is often also an experimental characteristic; it may adjust in future releases.
Specifies the overall level of Most important memory (in bytes) used for information retention. Append k or K, to specify the dimensions in KB, m or M to specify the dimensions in MB, or g or G to specify the dimensions in GB. By default, the scale is about to 462848 bytes.
This instance assumes that The trail to your userdump.exe utility is specified in the PATH surroundings variable:
Specifies whether thread sampling is enabled. Thread sampling occurs provided that the sampling party is enabled as well as this parameter. By default, this parameter is enabled.
Oracle Solaris, Linux, and OS X: additional info The next case in point demonstrates how the -XX:OnError choice may be used to run the gcore command to produce the Main impression, and the debugger is started to connect to the method in the event of an irrecoverable mistake (the %p designates The existing course of action):
The OWASP Java Encoder Library at its core is meant for being a XSS Harmless _encoding_ library. The grave accent is often a respectable and commonly used character, that cannot be encoded to avoid this bug in unpatched versions of IE.
Sets The share with the heap (0 to 50) that’s reserved as being a false ceiling to cut back the potential for marketing failure for that G1 collector. Any time you boost or minimize the percentage, make sure you alter the entire Java heap by a similar amount of money. By default, this option is set to 10%.
Specifies the RTM abort ratio is specified content as a share (%) of all executed RTM transactions. If a variety of aborted transactions will become greater than this ratio, then the compiled code is deoptimized.
A lock on a transaction is inflated when A different thread tries to entry precisely the same transaction, thereby blocking the thread that didn’t at first ask for usage of the transaction.
Sets the file to which verbose GC functions facts need to be redirected for logging. The data written to this file is comparable to your output of -verbose:gc With all the time elapsed due to the fact the first GC party previous Each individual logged event. The -Xloggc option overrides -verbose:gc if equally are presented Along with the identical java command.