Installation issue - Caused by: java.lang.ClassCastException: class javax.swing.plaf.nimbus.DerivedColor$UIResource cannot be cast to class java.awt.Font

[cappetta]

Hi - I saw there was a closed issue related to this yet I'm performing a fresh install on Kali and hitting the same class cast error. On OSX this was installed w/o a problem. I reused the jython jar- thinking perhaps the interface between python / java was updated but I'm still seeing this issue.

Sharing while I continue to troubleshoot.

root@kali# java --version
openjdk 11.0.3 2019-04-16
OpenJDK Runtime Environment (build 11.0.3+1-Debian-1)
OpenJDK 64-Bit Server VM (build 11.0.3+1-Debian-1, mixed mode, sharing)

Traceback (most recent call last):
  File "/root/0day/HUNT-master/Burp/hunt_scanner.py", line 26, in __init__
    self.view = View(self.issues)
  File "/root/0day/HUNT-master/Burp/lib/view.py", line 54, in __init__
    self.set_scanner_panes()
  File "/root/0day/HUNT-master/Burp/lib/view.py", line 133, in set_scanner_panes
    bottom_pane = self.create_tabbed_pane()
  File "/root/0day/HUNT-master/Burp/lib/view.py", line 151, in create_tabbed_pane
    tabbed_pane.add("Response", JScrollPane())
	at java.desktop/javax.swing.plaf.nimbus.NimbusStyle.getFontForState(NimbusStyle.java:581)
	at java.desktop/javax.swing.plaf.synth.SynthStyle.installDefaults(SynthStyle.java:935)
	at java.desktop/javax.swing.plaf.nimbus.NimbusStyle.installDefaults(NimbusStyle.java:237)
	at java.desktop/javax.swing.plaf.synth.SynthStyle.installDefaults(SynthStyle.java:918)
	at java.desktop/javax.swing.plaf.synth.SynthLookAndFeel.updateStyle(SynthLookAndFeel.java:270)
	at java.desktop/javax.swing.plaf.synth.SynthButtonUI.updateStyle(SynthButtonUI.java:83)
	at java.desktop/javax.swing.plaf.synth.SynthButtonUI.installDefaults(SynthButtonUI.java:66)
	at java.desktop/javax.swing.plaf.synth.SynthArrowButton$SynthArrowButtonUI.installDefaults(SynthArrowButton.java:69)
	at java.desktop/javax.swing.plaf.basic.BasicButtonUI.installUI(BasicButtonUI.java:105)
	at java.desktop/javax.swing.JComponent.setUI(JComponent.java:685)
	at java.desktop/javax.swing.AbstractButton.setUI(AbstractButton.java:1753)
	at java.desktop/javax.swing.plaf.synth.SynthArrowButton.updateUI(SynthArrowButton.java:52)
	at java.desktop/javax.swing.AbstractButton.init(AbstractButton.java:2136)
	at java.desktop/javax.swing.JButton.<init>(JButton.java:131)
	at java.desktop/javax.swing.JButton.<init>(JButton.java:85)
	at java.desktop/javax.swing.plaf.synth.SynthArrowButton.<init>(SynthArrowButton.java:41)
	at java.desktop/javax.swing.plaf.synth.SynthScrollBarUI$1.<init>(SynthScrollBarUI.java:374)
	at java.desktop/javax.swing.plaf.synth.SynthScrollBarUI.createDecreaseButton(SynthScrollBarUI.java:374)
	at java.desktop/javax.swing.plaf.basic.BasicScrollBarUI.installComponents(BasicScrollBarUI.java:289)
	at java.desktop/javax.swing.plaf.basic.BasicScrollBarUI.installUI(BasicScrollBarUI.java:208)
	at java.desktop/javax.swing.JComponent.setUI(JComponent.java:685)
	at java.desktop/javax.swing.JScrollBar.setUI(JScrollBar.java:210)
	at java.desktop/javax.swing.JScrollBar.updateUI(JScrollBar.java:231)
	at java.desktop/javax.swing.JScrollBar.<init>(JScrollBar.java:165)
	at java.desktop/javax.swing.JScrollBar.<init>(JScrollBar.java:182)
	at java.desktop/javax.swing.JScrollPane$ScrollBar.<init>(JScrollPane.java:702)
	at java.desktop/javax.swing.JScrollPane.createVerticalScrollBar(JScrollPane.java:854)
	at java.desktop/javax.swing.JScrollPane.<init>(JScrollPane.java:300)
	at java.desktop/javax.swing.JScrollPane.<init>(JScrollPane.java:352)
	at java.base/jdk.internal.reflect.GeneratedConstructorAccessor46.newInstance(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
	at org.python.core.PyReflectedConstructor.constructProxy(PyReflectedConstructor.java:213)
java.lang.ClassCastException: java.lang.ClassCastException: class javax.swing.plaf.nimbus.DerivedColor$UIResource cannot be cast to class java.awt.Font (javax.swing.plaf.nimbus.DerivedColor$UIResource and java.awt.Font are in module java.desktop of loader 'bootstrap')

	at org.python.core.Py.JavaError(Py.java:547)
	at org.python.core.Py.JavaError(Py.java:538)
	at org.python.core.PyReflectedConstructor.constructProxy(PyReflectedConstructor.java:223)
	at org.python.core.PyReflectedConstructor.__call__(PyReflectedConstructor.java:182)
	at org.python.core.PyObject.__call__(PyObject.java:422)
	at org.python.core.PyMethod.instancemethod___call__(PyMethod.java:237)
	at org.python.core.PyMethod.__call__(PyMethod.java:228)
	at org.python.core.PyMethod.__call__(PyMethod.java:223)
	at org.python.core.Deriveds.dispatch__init__(Deriveds.java:20)
	at org.python.core.PyObjectDerived.dispatch__init__(PyObjectDerived.java:1112)
	at org.python.core.PyType.type___call__(PyType.java:2408)
	at org.python.core.PyType.__call__(PyType.java:2389)
	at org.python.core.PyObject.__call__(PyObject.java:446)
	at org.python.core.PyObject.__call__(PyObject.java:450)
	at lib.view$py.create_tabbed_pane$19(/root/0day/HUNT-master/Burp/lib/view.py:155)
	at lib.view$py.call_function(/root/0day/HUNT-master/Burp/lib/view.py)
	at org.python.core.PyTableCode.call(PyTableCode.java:173)
	at org.python.core.PyBaseCode.call(PyBaseCode.java:134)
	at org.python.core.PyFunction.__call__(PyFunction.java:416)
	at org.python.core.PyMethod.__call__(PyMethod.java:126)
	at lib.view$py.set_scanner_panes$16(/root/0day/HUNT-master/Burp/lib/view.py:127)
	at lib.view$py.call_function(/root/0day/HUNT-master/Burp/lib/view.py)
	at org.python.core.PyTableCode.call(PyTableCode.java:173)
	at org.python.core.PyBaseCode.call(PyBaseCode.java:134)
	at org.python.core.PyFunction.__call__(PyFunction.java:416)
	at org.python.core.PyMethod.__call__(PyMethod.java:126)
	at lib.view$py.__init__$2(/root/0day/HUNT-master/Burp/lib/view.py:57)
	at lib.view$py.call_function(/root/0day/HUNT-master/Burp/lib/view.py)
	at org.python.core.PyTableCode.call(PyTableCode.java:173)
	at org.python.core.PyBaseCode.call(PyBaseCode.java:306)
	at org.python.core.PyBaseCode.call(PyBaseCode.java:197)
	at org.python.core.PyFunction.__call__(PyFunction.java:485)
	at org.python.core.PyFunction.__call__(PyFunction.java:479)
	at org.python.core.PyInstance.__init__(PyInstance.java:124)
	at org.python.core.PyClass.__call__(PyClass.java:193)
	at org.python.core.PyObject.__call__(PyObject.java:461)
	at org.python.core.PyObject.__call__(PyObject.java:465)
	at org.python.pycode._pyx4.__init__$5(/root/0day/HUNT-master/Burp/hunt_scanner.py:26)
	at org.python.pycode._pyx4.call_function(/root/0day/HUNT-master/Burp/hunt_scanner.py)
	at org.python.core.PyTableCode.call(PyTableCode.java:173)
	at org.python.core.PyBaseCode.call(PyBaseCode.java:306)
	at org.python.core.PyBaseCode.call(PyBaseCode.java:197)
	at org.python.core.PyFunction.__call__(PyFunction.java:485)
	at org.python.core.PyMethod.instancemethod___call__(PyMethod.java:237)
	at org.python.core.PyMethod.__call__(PyMethod.java:228)
	at org.python.core.PyMethod.__call__(PyMethod.java:223)
	at org.python.core.Deriveds.dispatch__init__(Deriveds.java:20)
	at org.python.core.PyObjectDerived.dispatch__init__(PyObjectDerived.java:1112)
	at org.python.core.PyType.type___call__(PyType.java:2408)
	at org.python.core.PyType.__call__(PyType.java:2389)
	at org.python.core.PyObject.__call__(PyObject.java:446)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
	at burp.bx_.<init>(Unknown Source)
	at burp.ax_.a(Unknown Source)
	at burp.e7y.lambda$panelLoaded$0(Unknown Source)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:835)
Caused by: java.lang.ClassCastException: class javax.swing.plaf.nimbus.DerivedColor$UIResource cannot be cast to class java.awt.Font (javax.swing.plaf.nimbus.DerivedColor$UIResource and java.awt.Font are in module java.desktop of loader 'bootstrap')
	at java.desktop/javax.swing.plaf.nimbus.NimbusStyle.getFontForState(NimbusStyle.java:581)
	at java.desktop/javax.swing.plaf.synth.SynthStyle.installDefaults(SynthStyle.java:935)
	at java.desktop/javax.swing.plaf.nimbus.NimbusStyle.installDefaults(NimbusStyle.java:237)
	at java.desktop/javax.swing.plaf.synth.SynthStyle.installDefaults(SynthStyle.java:918)
	at java.desktop/javax.swing.plaf.synth.SynthLookAndFeel.updateStyle(SynthLookAndFeel.java:270)
	at java.desktop/javax.swing.plaf.synth.SynthButtonUI.updateStyle(SynthButtonUI.java:83)
	at java.desktop/javax.swing.plaf.synth.SynthButtonUI.installDefaults(SynthButtonUI.java:66)
	at java.desktop/javax.swing.plaf.synth.SynthArrowButton$SynthArrowButtonUI.installDefaults(SynthArrowButton.java:69)
	at java.desktop/javax.swing.plaf.basic.BasicButtonUI.installUI(BasicButtonUI.java:105)
	at java.desktop/javax.swing.JComponent.setUI(JComponent.java:685)
	at java.desktop/javax.swing.AbstractButton.setUI(AbstractButton.java:1753)
	at java.desktop/javax.swing.plaf.synth.SynthArrowButton.updateUI(SynthArrowButton.java:52)
	at java.desktop/javax.swing.AbstractButton.init(AbstractButton.java:2136)
	at java.desktop/javax.swing.JButton.<init>(JButton.java:131)
	at java.desktop/javax.swing.JButton.<init>(JButton.java:85)
	at java.desktop/javax.swing.plaf.synth.SynthArrowButton.<init>(SynthArrowButton.java:41)
	at java.desktop/javax.swing.plaf.synth.SynthScrollBarUI$1.<init>(SynthScrollBarUI.java:374)
	at java.desktop/javax.swing.plaf.synth.SynthScrollBarUI.createDecreaseButton(SynthScrollBarUI.java:374)
	at java.desktop/javax.swing.plaf.basic.BasicScrollBarUI.installComponents(BasicScrollBarUI.java:289)
	at java.desktop/javax.swing.plaf.basic.BasicScrollBarUI.installUI(BasicScrollBarUI.java:208)
	at java.desktop/javax.swing.JComponent.setUI(JComponent.java:685)
	at java.desktop/javax.swing.JScrollBar.setUI(JScrollBar.java:210)
	at java.desktop/javax.swing.JScrollBar.updateUI(JScrollBar.java:231)
	at java.desktop/javax.swing.JScrollBar.<init>(JScrollBar.java:165)
	at java.desktop/javax.swing.JScrollBar.<init>(JScrollBar.java:182)
	at java.desktop/javax.swing.JScrollPane$ScrollBar.<init>(JScrollPane.java:702)
	at java.desktop/javax.swing.JScrollPane.createVerticalScrollBar(JScrollPane.java:854)
	at java.desktop/javax.swing.JScrollPane.<init>(JScrollPane.java:300)
	at java.desktop/javax.swing.JScrollPane.<init>(JScrollPane.java:352)
	at java.base/jdk.internal.reflect.GeneratedConstructorAccessor46.newInstance(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
	at org.python.core.PyReflectedConstructor.constructProxy(PyReflectedConstructor.java:213)
	... 60 more

[iNoSec2]

load the hunt methodology before, after that add the hunt scanner 2 times in the extender, try loading the scanner and click click click (never stop until finished) on the clear button when loading, and try on the other scanner if doesnt work. Seems like i troll but it isnt the case it work for me and now it load every time i start burp 2020.4.1 Pro

[nav7neeet]

Thanks @iNoSec2. Loading the extension twice (click click) fixed the installation issue for Hunt Methodology as well as Hunt Scanner.

[iNoSec2]

I know that's weird but that's work :) a lot of guys think i troll them

[cappetta]

Nice. will check on my end and circle back.

[juanresendiz813]

I just did a fresh install install in Kali and got the same issue. I did what @iNoSec2 said and it worked. I ran it first got the error, kept the window open with the error on it, ran it again and it worked the second time...
lol very odd but either way thanks man it worked! And I really thought you were trolling at first ; )