Change Log

age author description
Mon, 06 Feb 2017 18:03:21 -0800 nastaran Extended the model class sun.misc.SharedSecrets to make it compatible with the updates in jdk8u121. The update caused the test gov.nasa.jpf.test.java.io.ObjectStreamTest to fail.default tip
Wed, 25 May 2016 10:43:50 -0700 nastaran Updated the model class sun.misc.SharedSecrets to make it compatible with the recent updates in jdk8u75. New methods added to sun.misc.SharedSecrets are used by clinit in java.io.ObjectInputStream which caused JPF to throw java.lang.NoSuchMethodException.
Wed, 25 May 2016 10:00:18 -0700 nastaran Fixed a bug in AtomicLong native peer.
Fri, 16 Oct 2015 15:55:08 -0700 nastaran Fixed a bug in the implementation for lambda support. Now, every invocation of invokedynamic that is associated with a lamabda expression including free variables leads to a new instance of a function object.
Thu, 25 Jun 2015 13:20:50 -0700 nastaran Provided support for double colon operator used for lamabda expressions. Fixed a bug related to generating names for funcation object classes (by supporting double colon operator, a new stragety needed to generate unique names for function objects. To achive that the bootstrap ids are incorporated into names). Finally modified the method that retrieves the SAM from functional interfaces.
Mon, 11 May 2015 12:17:18 -0700 Peter Mehlitz fixed the missing class init status update for native clinits. Since we moved
Mon, 04 May 2015 22:10:33 -0700 Peter Mehlitz moved NonShared + checker listener over from old jpf-aprop. Note this is still a JVM specific listener but it could be VM agnostic
Wed, 22 Apr 2015 15:54:26 -0700 Peter Mehlitz added class name to warning for ambiguous native methods (without MJI signatures)
Tue, 21 Apr 2015 00:34:15 -0700 Peter Mehlitz the fix I would have liked to avoid - apparently hotspot internally does nested locking during class init, which can lead to deadlocks such as described in http://ternarysearch.blogspot.ru/2013/07/static-initialization-deadlock.html. Actually, it's not a regular deadlock since core dumps still list the threads as runnable, althouth it doesn't seem to be a livelock either. In any case, it can be simulated by nested locking and clinit execution, and it is such a serious defect that we want to be able to catch it. The general mechanism is to replace the disparate (but properly ordered) direct clinit calls of the generic ClassInfo.initializeClass() with a single sythetic method that includes all required locking (bottom up), clinit calls / class status change (top down), and unlocking (top down). We also need to add a synthetic insn to defer changing the class status of classes that don't have clinits(), or otherwise the correct lock/unlock order will not amount to anything if the hierarchy is entered through one of the clinit-absent classes. Now we get proper deadlocks if there are concurrent cyclic dependencies during class resolution. However, this can be such a state exploder that we certainly don't want this as the default behavior, especially since it probably is hotspot specific. Nested class init locking is therefore controlled by jvm.nested_init and respective jvm.nested_init.include/exclude options. Added a NestedInitTest to demonstrate use. Thanks to Lilia Abdulina for bringing this long forgotten issue up
Wed, 15 Apr 2015 22:40:21 -0700 Peter Mehlitz streamlined class init, which was a mixed case of registerClass()/initializeClass() and pushRequiredClinits(). Now it is a single initializeClass(ti) method which combines the previous initializeClass(), pushRequiredClinits() and pushClinit() methods. The reason for combining these is the forthcoming replacement of separately locked clinits from different DirectCallStackFrames with a single synthetic frame that calls clinits from nested synchronized blocks. This is required to model hotspot, which does cause deadlocks with concurrent init of classes that cause subclass init during their clinit executions.
Tue, 14 Apr 2015 15:01:25 -0700 Peter Mehlitz fixed JPF_.._Verify.registerChoiceGenerator() to not break and ignore the
Fri, 10 Apr 2015 20:53:11 -0700 Peter Mehlitz reshuffled Event hierarchy, introducing SystemEvent, with CheckEvent and
Mon, 06 Apr 2015 12:08:03 -0700 Peter Mehlitz changed EventForest to derive from EventTree, which kills three birds with one
Wed, 01 Apr 2015 12:14:15 -0700 Peter Mehlitz !!! NOTE: this marks the beginning of Java 8 dependency for jpf-core compilation.
Tue, 31 Mar 2015 15:37:44 -0700 Peter Mehlitz moved LogConsole to .jpf.tool package
Mon, 23 Mar 2015 12:54:20 -0700 Peter Mehlitz added a @NoJPFExecution annotation, which sets a NoJPFExec system attr on marked
Fri, 20 Mar 2015 15:47:10 -0700 Peter Mehlitz fixed forgotten ClInitRequired check in DateFormat - thanks to Jiri Vahala
Wed, 18 Mar 2015 11:52:11 -0700 Peter Mehlitz some minor syntax fixes to make IntelliJ happy
Mon, 16 Mar 2015 19:39:36 -0700 Peter Mehlitz bug caused by using the wrong index during scheduler.updateArraySharedness() -
Fri, 13 Mar 2015 14:07:43 -0700 Peter Mehlitz replaced ThreadInfo.yield() (which was bypassing SyncPolicy) with SyncPolicy.setsRescheduleCG(). The current use is only for the corner case where the last transition in the last non-daemon triggers a defect in a still runnable daemon, which we want to detect before the daemon is shut down.
Wed, 11 Mar 2015 18:20:32 -0700 Peter Mehlitz modified PathOutputMonitor to allow in-situ path specs. If the pom.{all|any|none} value starts with a double quote it is taken as the output spec. Also added a VerbatimOutputSpec in case we don't want regex matching
Wed, 25 Feb 2015 13:03:40 -0800 Peter Mehlitz PairPermutationGenerator didn't have public ctor
Wed, 25 Feb 2015 09:42:13 -0800 nastaran Made getRunnableCG add GlobalSchedulingPoint as an attribute to global choice generators that capture choices from multiple processes.
Fri, 13 Feb 2015 20:20:15 -0800 Peter Mehlitz added choice getters for EventChoiceGenerator
Wed, 11 Feb 2015 19:16:10 -0800 Peter Mehlitz added single element List optimization
Fri, 06 Feb 2015 17:28:55 -0800 Peter Mehlitz added a @JPFAttribute(TYPE_NAME,...) annotation for model classes (class, field and method target), which causes JPF to automatically set attribute objects that are instantiated from the provided type name args. Note that the respective attribute classes need to have a public default constructor. Added a JPFAttrAnnotationTest to show how to use it. This is the generic mechanism to use if we need to mark ClassInfos, MethodInfos and FieldInfos either from sources (using annotations), or from config files (type names/matchers used from listeners etc.) - base the processing on attributes, and set them from annotations via @JPFAttribute
Fri, 06 Feb 2015 10:12:12 -0800 Peter Mehlitz added a UniqueRandomPermGenerator that makes sure we don't return duplicates. It also checks the (unlikely and pointless) case that we request more permutations than N! and caps the number of samples accordingly
Thu, 05 Feb 2015 19:13:42 -0800 Peter Mehlitz slight fix of RandomPermutationGenerator, which should re-shuffle the original
Thu, 05 Feb 2015 18:53:33 -0800 Peter Mehlitz added some infrastructure to pull-generate permutations (total, random and
Tue, 03 Feb 2015 08:49:33 -0800 Peter Mehlitz added inverse matching in StringSetMatcher. Since this is not easy to do in regexes, it's at the next hight level in StringSetMatcher
Sat, 24 Jan 2015 18:19:08 -0800 Peter Mehlitz second part of the jpf-statechart motivated event interface overhaul, providing dynamic (context specific) expansion of EventTrees from within EventChoiceGenerators. This adds a EventContext mechanism that can replace events on-the-fly during advance() (e.g. expand wildcard patterns)
Fri, 23 Jan 2015 11:08:46 -0800 Peter Mehlitz first set of post v7 patches
Fri, 23 Jan 2015 10:14:01 -0800 Peter Mehlitz initial v8 import (history reset)