Upgraded the issue 164 reporter to replace what we had. I think we'll roll this out in 0.10.0-RC2.

src/core/lombok/core/debug/DebugSnapshot.java

@@ -43,7 +43,7 @@ public class DebugSnapshot implements Comparable<DebugSnapshot> {
 	public String shortToString() {
 		StringBuilder out = new StringBuilder();
 		out.append(String.format("WHEN: %14d THREAD: %s AST: %s", when, threadName, ownerName()));
-		if (message != null) out.append(String.format(message, params));
+		if (message != null) out.append(" ").append(String.format(message, params));
 		return out.toString();
 	}
 	

src/core/lombok/core/debug/DebugSnapshotStore.java

@@ -31,7 +31,7 @@ public class DebugSnapshotStore {
 		}
 	}
 	
-	public void print(CompilationUnitDeclaration owner, String message, Object... params) {
+	public String print(CompilationUnitDeclaration owner, String message, Object... params) {
 		List<DebugSnapshot> list;
 		
 		synchronized (map) {
@@ -54,14 +54,17 @@ public class DebugSnapshotStore {
 		}
 		
 		try {
-			OutputStream stream = new FileOutputStream(new File(System.getProperty("user.home", "."), String.format("lombok164-%d.err", System.currentTimeMillis())));
+			File logFile = new File(System.getProperty("user.home", "."), String.format("lombok164-%d.err", System.currentTimeMillis()));
+			OutputStream stream = new FileOutputStream(logFile);
 			try {
 				stream.write(out.toString().getBytes("UTF-8"));
 			} finally {
 				stream.close();
 			}
+			return logFile.getAbsolutePath();
 		} catch (Exception e) {
 			System.err.println(out);
+			return "(can't write log file - emitted to system err)";
 		}
 	}
 }

src/core/lombok/eclipse/handlers/EclipseHandlerUtil.java

@@ -467,10 +467,8 @@ public class EclipseHandlerUtil {
 			
 			if (report) {
 				CompilationUnitDeclaration cud = (CompilationUnitDeclaration) type.top().get();
-				DebugSnapshotStore.INSTANCE.print(cud, "Printing: injecting whilst scope is already built.");
-//				Eclipse.warning("State: " + Issue164Fixer.getState(cud) + " -- We believe you may have just stumbled on lombok issue #164. Please " +
-//						"report the stack trace associated with this message at:\n" +
-//						"http://code.google.com/p/projectlombok/issues/detail?id=164. Occurred on class " + new String(parent.name), new Throwable());
+				String logFileLocation = DebugSnapshotStore.INSTANCE.print(cud, "Printing: injecting whilst scope is already built.");
+				Eclipse.warning("We believe you may have stumbled on issue 164. Please upload file " + logFileLocation + " to: http://code.google.com/p/projectlombok/issues/detail?id=164", new Throwable());
 			}
 		}