It is not an easy task to analyse thread dumps as files generated by the jstack tool provides raw text files. This is why I'm developing JStackFX.

JStackFX requires the latest JDK 8 available on your system.

As JStackFX is currently under development, you can build it manually in order to have the latest version. In order to build it, ensure the JDK 8 is available and execute the following command:

gradlew clean assemble

In order to start JStackFX, unzip the build/distributions/JStackFX-<version>.zip archive and start a command line within the unzipped folder. Execute the following command:

java -jar jstackfx-<version>.jar

In order to start JStackFX and open directly a dumpTimeline file you can use the following command:

java -jar jstackfx-<version>.jar --file=/path/to/dumpTimeline.txt

In order to start JStackFX and make a thread dumpTimeline of a given process you can use the following command:

java -jar jstackfx-<version>.jar --pid=<pid of the process to dumpTimeline>

Warning: if both --pid and --file parameters are used, --file is ignored.

Use the search bar in JStackFX to filter results. A query must have the following syntax:

fieldName comparator value operand fieldName comparator value ...

• fieldName can be: state, number, threadId, priority or osPriority
• comparator can be: =, !=, <=, <, >= or >
• operand can be: and or or

Examples:

• List all RUNNABLE threads:state = runnable
• Display threads having number 10 or 20: number = 10 or number = 20
• Display threads having number 10 or thread having number 20 and is in state BLOCKED: number = 10 or number = 20 and state = blocked

New and noteworthy:

• Support for operators <=, <, >= and >
• UI improvements

New and noteworthy:

• Display the number of results in the search bar
• Allow to display thread elements' source from the dumpTimeline file
• UX improvements

New and noteworthy:

• Adding a search bar for filtering results
• Change the cursor when over a blocked or blocking thread in the table
• Make some information of the thread copyable