The Select task panel allows to start/modify 
profiling even if no Code fragment is selected, 
resulting in an NPE:

java.lang.NullPointerException
        at 
com.sun.tools.profiler.instrumentation.Instrumento
r.setStatusInfoFromSourceCodeSelection
(Instrumentor.java:165)
        at 
com.sun.tools.profiler.ProfilerClient.initiateCode
RegionInstrumentation(ProfilerClient.java:221)
        at 
org.netbeans.modules.profiler.NetBeansProfiler.per
formInstrumentation(NetBeansProfiler.java:794)
        at 
org.netbeans.modules.profiler.NetBeansProfiler.mod
ifyCurrentProfiling(NetBeansProfiler.java:767)
        at 
org.netbeans.modules.profiler.actions.ProfilingSup
port.modifyProfiling(ProfilingSupport.java:347)
        at 
org.netbeans.modules.profiler.actions.ModifyProfil
ingAction.performAction
(ModifyProfilingAction.java:33)
        at 
org.openide.util.actions.CallableSystemAction$1.ru
n(CallableSystemAction.java:78)
        at 
org.openide.util.actions.CallableSystemAction.doPe
rformAction(CallableSystemAction.java:116)
        at 
org.openide.util.actions.CallableSystemAction.acti
onPerformed(CallableSystemAction.java:76)
        at 
javax.swing.AbstractButton.fireActionPerformed
(AbstractButton.java:1786)
        at 
javax.swing.AbstractButton$ForwardActionEvents.act
ionPerformed(AbstractButton.java:1839)
        at 
javax.swing.DefaultButtonModel.fireActionPerformed
(DefaultButtonModel.java:420)
        at 
javax.swing.DefaultButtonModel.setPressed
(DefaultButtonModel.java:258)
        at 
javax.swing.plaf.basic.BasicButtonListener.mouseRe
leased(BasicButtonListener.java:245)
        at 
java.awt.AWTEventMulticaster.mouseReleased
(AWTEventMulticaster.java:231)
        at java.awt.Component.processMouseEvent
(Component.java:5100)
        at 
org.openide.awt.ToolbarButton.processMouseEvent
(ToolbarButton.java:29)
        at java.awt.Component.processEvent
(Component.java:4897)
        at java.awt.Container.processEvent
(Container.java:1569)
        at java.awt.Component.dispatchEventImpl
(Component.java:3615)
        at java.awt.Container.dispatchEventImpl
(Container.java:1627)
        at java.awt.Component.dispatchEvent
(Component.java:3477)
        at 
java.awt.LightweightDispatcher.retargetMouseEvent
(Container.java:3483)
        at 
java.awt.LightweightDispatcher.processMouseEvent
(Container.java:3198)
        at 
java.awt.LightweightDispatcher.dispatchEvent
(Container.java:3128)
        at java.awt.Container.dispatchEventImpl
(Container.java:1613)
        at java.awt.Window.dispatchEventImpl
(Window.java:1606)
        at java.awt.Component.dispatchEvent
(Component.java:3477)
        at java.awt.EventQueue.dispatchEvent
(EventQueue.java:456)
[catch] at 
java.awt.EventDispatchThread.pumpOneEventForHierar
chy(EventDispatchThread.java:201)
        at 
java.awt.EventDispatchThread.pumpEventsForHierarch
y(EventDispatchThread.java:151)
        at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:145)
        at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:137)
        at java.awt.EventDispatchThread.run
(EventDispatchThread.java:100)

The Code fragment selection should somehow be 
indiocated in the task's panel, and the Run/OK 
button enabled/disabled based on the fragment 
selection