@Override
public Component getListCellRendererComponent(
JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
// ### We should indicate the current thread independently of the
// ### selection, e.g., with an icon, because the user may change
// ### the selection graphically without affecting the current
// ### thread.
super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
if (value == null) {
this.setText("<unavailable>");
} else {
StackFrame frame = (StackFrame) value;
Location loc = frame.location();
Method meth = loc.method();
String methName = meth.declaringType().name() + '.' + meth.name();
String position = "";
if (meth.isNative()) {
position = " (native method)";
} else if (loc.lineNumber() != -1) {
position = ":" + loc.lineNumber();
} else {
long pc = loc.codeIndex();
if (pc != -1) {
position = ", pc = " + pc;
}
}
// Indices are presented to the user starting from 1, not 0.
this.setText("[" + (index + 1) + "] " + methName + position);
}
return this;
}
private static void renderTrace(List<StackFrame> frames, StringBuilder buffer) {
for (final StackFrame stackFrame : frames) {
final Location location = stackFrame.location();
buffer.append("\n\t ").append(ThreadDumpAction.renderLocation(location));
}
}