jstack
E356911
jstack is a Java diagnostic tool that prints stack traces of all threads in a running JVM process to help analyze deadlocks, performance issues, and other runtime problems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| jstack canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3425806 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: jstack Context triple: [Oracle JDK, includes, jstack]
-
A.
Java Mission Control
Java Mission Control is a powerful profiling and diagnostics tool for monitoring, analyzing, and troubleshooting Java applications in production.
-
B.
HotSpot JVM
HotSpot JVM is a high-performance Java Virtual Machine known for its advanced just-in-time compilation and adaptive optimization techniques, originally developed by Sun Microsystems.
-
C.
Java Flight Recorder
Java Flight Recorder is a low-overhead profiling and diagnostics tool built into the Java Virtual Machine for collecting detailed runtime data about Java applications.
-
D.
JST
JST is the ICAO airline designator used to identify Jetstar Airways in international aviation operations.
-
E.
JST
JST is the time zone used throughout Japan, nine hours ahead of Coordinated Universal Time (UTC+9).
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: jstack Target entity description: jstack is a Java diagnostic tool that prints stack traces of all threads in a running JVM process to help analyze deadlocks, performance issues, and other runtime problems.
-
A.
Java Mission Control
Java Mission Control is a powerful profiling and diagnostics tool for monitoring, analyzing, and troubleshooting Java applications in production.
-
B.
HotSpot JVM
HotSpot JVM is a high-performance Java Virtual Machine known for its advanced just-in-time compilation and adaptive optimization techniques, originally developed by Sun Microsystems.
-
C.
Java Flight Recorder
Java Flight Recorder is a low-overhead profiling and diagnostics tool built into the Java Virtual Machine for collecting detailed runtime data about Java applications.
-
D.
JST
JST is the ICAO airline designator used to identify Jetstar Airways in international aviation operations.
-
E.
JST
JST is the time zone used throughout Japan, nine hours ahead of Coordinated Universal Time (UTC+9).
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
JDK tool
ⓘ
Java diagnostic tool ⓘ command-line utility ⓘ |
| canDetect | Java-level deadlocks ⓘ |
| canShow |
which locks each thread holds
ⓘ
which locks each thread is waiting for ⓘ |
| category |
Java troubleshooting tool
ⓘ
profiling and monitoring tool ⓘ |
| developedBy |
Oracle Corporation
ⓘ
Sun Microsystems ⓘ |
| includedIn |
OpenJDK
ⓘ
Oracle JDK ⓘ |
| input |
core file
ⓘ
remote debug server (deprecated in newer JDKs) ⓘ running JVM process ⓘ |
| introducedIn | early Java SE 5 era (approximate) ⓘ |
| optionPurpose |
-F forces a thread dump when the process is not responding
ⓘ
-l prints additional lock information ⓘ -m prints mixed mode Java and native frames ⓘ |
| output |
Java-level stack frames
ⓘ
native stack frames (with appropriate options) ⓘ thread stack traces ⓘ |
| partOf | Java Development Kit ⓘ |
| platform | cross-platform ⓘ |
| primaryFunction | print Java thread stack traces ⓘ |
| programmingLanguage | Java ⓘ |
| relatedTo |
VisualVM
ⓘ
jcmd ⓘ jconsole ⓘ jmap ⓘ jstat ⓘ |
| requires |
process identifier of target JVM
ⓘ
sufficient OS permissions to attach to target process ⓘ |
| runsOn | Java Virtual Machine ⓘ |
| supportsOption |
-F
ⓘ
-h ⓘ -help ⓘ -l ⓘ -m ⓘ |
| typicalUsage | jstack <pid> ⓘ |
| usedBy |
Java developers
ⓘ
production support engineers ⓘ site reliability engineers ⓘ |
| usedFor |
analyzing CPU utilization issues
ⓘ
analyzing blocked threads ⓘ analyzing deadlocks ⓘ analyzing performance issues ⓘ capturing thread dumps ⓘ debugging hung Java applications ⓘ diagnosing runtime problems ⓘ inspecting thread states ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: jstack Description of subject: jstack is a Java diagnostic tool that prints stack traces of all threads in a running JVM process to help analyze deadlocks, performance issues, and other runtime problems.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.