Bug 1185691
| Summary: | NullPointerException or IllegalStateException occurs when session.execute() are called concurrently | ||||||||
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| Product: | [Retired] JBoss BRMS Platform 6 | Reporter: | Hisao Furuichi <hfuruich> | ||||||
| Component: | BRE | Assignee: | Mario Fusco <mfusco> | ||||||
| Status: | CLOSED EOL | QA Contact: | Marek Winkler <mwinkler> | ||||||
| Severity: | urgent | Docs Contact: | Dawn Eisner <deisner> | ||||||
| Priority: | urgent | ||||||||
| Version: | 6.0.3 | CC: | alazarot, kverlaen, mbaluch, mfusco | ||||||
| Target Milestone: | ER5 | ||||||||
| Target Release: | 6.1.0 | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | |||||||||
| : | 1195144 (view as bug list) | Environment: | |||||||
| Last Closed: | 2020-03-27 20:00:46 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Bug Depends On: | |||||||||
| Bug Blocks: | 1195144 | ||||||||
| Attachments: |
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Created attachment 984088 [details]
fixed class
Verified in BRMS 6.1.0 ER5. |
Created attachment 984087 [details] reproducer Description of problem: If session.execute is called concurrently, NullpinterException or IllegalStateExeition occurs. Steps to Reproduce: 1. Download and import Drools6ReoccurNPEProject.zip to JBDS 2. Fix jars and JVM option(like: -Xms1303m -Xmx1303m) 3. Run com.sample.DroolsTest Actual results: One of following types of Exception occurs. === java.lang.IllegalMonitorStateException at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(ReentrantLock.java:155) at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(AbstractQueuedSynchronizer.java:1260) at java.util.concurrent.locks.ReentrantLock.unlock(ReentrantLock.java:460) at org.drools.core.common.AbstractWorkingMemory.endBatchExecution(AbstractWorkingMemory.java:1753) at org.drools.core.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:381) at com.sample.RuleTestThread.execRun(RuleTestThread.java:39) at com.sample.RuleTestThread.run(RuleTestThread.java:23) === === java.lang.NullPointerException at org.drools.core.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:381) at com.sample.RuleTestThread.execRun(RuleTestThread.java:39) at com.sample.RuleTestThread.run(RuleTestThread.java:23) === Expected results: The program can run without any Exception Additional info: Our customer shares fixed StatelessKnowledgeSessionImpl.java which is the one in BRMS 6.0.3. Please check their modification. The fixed class is attached as StatelessKnowledgeSessionImpl.CHAGEDraft.java