https://bz.apache.org/bugzilla/show_bug.cgi?id=63369
Bug ID: 63369
Summary: Unable to launch GUI mode if using DisplayLink driver
for external monitors
Product: JMeter
Version: unspecified
Hardware: Macintosh
Status: NEW
Severity: normal
Priority: P2
Component: Main
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: JMETER_5.1.1
When using a docking station/external monitor that uses the DisplayLink driver,
Jmeter gui fails to launch. I have tried several versions of jmeter all with
the same result. A similar issue was documented:
https://github.com/oracle/visualvm/issues/84
Machine Specs:
MacBook Pro 2015 with Mojave (Ver 10.14.4)
Java 1.8.0_211
JMeter - have tried 5.0 and 5.1.1
DisplayLink driver 5.1.1
Docking stations: Dell doc and Plugable USB 3.0
Steps:
connect to a docking station that uses the DisplayLink driver.
Try to launch jmeter gui
Expected:
jmeter gui launches
Actual:
An error occurred: null
Log file shows:
2019-04-20 07:46:35,961 ERROR o.a.j.JMeter: An error occurred:
java.lang.NullPointerException: null
at java.awt.Window.init(Window.java:497) ~[?:1.8.0_211]
at java.awt.Window.<init>(Window.java:537) ~[?:1.8.0_211]
at java.awt.Frame.<init>(Frame.java:420) ~[?:1.8.0_211]
at java.awt.Frame.<init>(Frame.java:385) ~[?:1.8.0_211]
at
javax.swing.SwingUtilities$SharedOwnerFrame.<init>(SwingUtilities.java:1763)
~[?:1.8.0_211]
at
javax.swing.SwingUtilities.getSharedOwnerFrame(SwingUtilities.java:1838)
~[?:1.8.0_211]
at javax.swing.JWindow.<init>(JWindow.java:187) ~[?:1.8.0_211]
at javax.swing.JWindow.<init>(JWindow.java:139) ~[?:1.8.0_211]
at org.apache.jmeter.SplashScreen.<init>(SplashScreen.java:45)
~[ApacheJMeter_core.jar:5.1.1 r1855137]
at org.apache.jmeter.JMeter.startGui(JMeter.java:375)
~[ApacheJMeter_core.jar:5.1.1 r1855137]
at org.apache.jmeter.JMeter.start(JMeter.java:544)
[ApacheJMeter_core.jar:5.1.1 r1855137]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[?:1.8.0_211]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:1.8.0_211]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_211]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_211]
at org.apache.jmeter.NewDriver.main(NewDriver.java:253)
[ApacheJMeter.jar:5.1.1 r1855137]
Workaround: dont use a docking station
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