Bug ID: JDK-8022854 System.setProperties(null) does not remove implementation properties

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tbdUnresolved

When the system properties are initialized in System.initializeSystemClass() the set of properties is trimmed to remove certain implementation properties. If the system properties are re-initialized via System.setProperties(null) then the implementation properties are not removed. Additionally, the property values set by sun.misc.Version.init() are omitted.

blocked by incorrect reinitializations
14-07-2014
None of the visible properties are of concern. They are private only because they are implementation properties.
10-09-2013
I want to make sure we are satisfied that there are no vulnerabilities before going public.
04-09-2013
Adds JTReg test
04-09-2013
Nice test. If you want to turn it into a jtreg test, I'd suggest not using assert, and instead writing an if-statement with a throw of AssertionError or something. Unfortunately it's optional whether assertions are enabled. It should probably be written to use /othervm mode since it resets system properties. Come to think of it, it might not work under jtreg, since jtreg adds some items to system properties. Not sure if they'll survive a properties reset.
14-08-2013
public class SystemPropertiesReinit { public static void main(String... args) { Properties first = System.getProperties(); System.setProperties(null); Properties second = System.getProperties(); Properties diff1 = (Properties) first.clone(); Properties diff2 = (Properties) second.clone(); diff1.keySet().removeAll(second.keySet()); diff2.keySet().removeAll(first.keySet()); System.out.println("Appearing in second: " + diff2 ); System.out.println("Missing from second: " + diff1 ); assert diff1.isEmpty() && diff2.isEmpty() : "Not empty"; } } Produces: Appearing in second: {sun.nio.MaxDirectMemorySize=-1} Missing from second: {java.runtime.name=Java(TM) SE Runtime Environment, java.runtime.version=1.7.0_25-b15} Exception in thread "main" java.lang.AssertionError: Not empty at junktest.SystemPropertiesReinit.main(SystemPropertiesReinit.java:31)
13-08-2013
Default value for sun.nio.MaxDirectMemorySize should re-examined.
12-08-2013

Blocks :	JDK-8041674 - user.timezone property not initialized after System.setProperties(null)
Blocks :	JDK-8041676 - deprecate the java.compiler system property for removal
Blocks :	JDK-8031388 - (props) Add comprehensive test for System.setProperties(null)
Blocks :	JDK-8041675 - java.vm.info not correctly reinitialized after System.setProperties(null)