Bugzilla – Full Text Bug Listing
| Summary: | sendToolTipEvent blows up with a null pointer exception when the window == null | ||
|---|---|---|---|
| Product: | [Eclipse Project] Platform | Reporter: | Jeff Stano <jstano> |
| Component: | SWT | Assignee: | Platform-SWT-Inbox <platform-swt-inbox> |
| Status: | RESOLVED WORKSFORME | QA Contact: | |
| Severity: | critical | ||
| Priority: | P3 | CC: | lshanmug |
| Version: | 3.6.2 | ||
| Target Milestone: | --- | ||
| Hardware: | Macintosh | ||
| OS: | Mac OS X | ||
| Whiteboard: | |||
This got fixed in 3.7M3 (as part of fix for Bug 324345). This is the code in 3.7 HEAD, we are using view.window() instead of 'window': NSWindow eventWindow = view.window(); if (tooltipTag == 0) { NSView view = eventWindow.contentView(); Closing bug, please reopen if problem is seen with recent 3.7 builds. |
Build Identifier: SWT-3.6.2 Cocoa Mac OSX 64 When creating a Shell using the SWT_AWT.new_Shell method, the created Shell has the window object set to null. This causes the sendToolTipEvent to blow up, since there is not a check for window == null. This only happens when creating a Shell that is embedded in a AWT/Swing application. Here is the code for the sendToolTipEvent method void sendToolTipEvent (boolean enter) { if (!isVisible()) return; if (tooltipTag == 0) { NSView view = window.contentView(); tooltipTag = view.addToolTipRect(new NSRect(), window, 0); if (tooltipTag != 0) { NSTrackingArea trackingArea = new NSTrackingArea(tooltipTag); id owner = trackingArea.owner(); if (owner != null) tooltipOwner = owner.id; id userInfo = trackingArea.userInfo(); if (userInfo != null) { tooltipUserData = userInfo.id; } else { long /*int*/ [] value = new long /*int*/ [1]; OS.object_getInstanceVariable(tooltipTag, new byte[]{'_','u', 's', 'e', 'r', 'I', 'n', 'f', 'o'}, value); tooltipUserData = value[0]; } } } if (tooltipTag == 0 || tooltipOwner == 0 || tooltipUserData == 0) return; NSPoint pt = window.convertScreenToBase(NSEvent.mouseLocation()); NSEvent event = NSEvent.enterExitEventWithType(enter ? OS.NSMouseEntered : OS.NSMouseExited, pt, 0, 0, window.windowNumber(), null, 0, tooltipTag, tooltipUserData); OS.objc_msgSend(tooltipOwner, enter ? OS.sel_mouseEntered_ : OS.sel_mouseExited_, event.id); } The problem starts with the code in windowSendEvent method in the Shell class. The line that causes the blowup is if (shell != null) shell.sendToolTipEvent (true); Reproducible: Always Steps to Reproduce: 1.Create a shell using SWT_AWT.new_Shell(display, canvas) where canvas is a valid java.awt.Canvas instance. 2.Create a new Shell in a second window. 3.