Fix logging API

pkg/analyzer/lib/src/analyzer_impl.dart

Index: pkg/analyzer/lib/src/analyzer_impl.dart
diff --git a/pkg/analyzer/lib/src/analyzer_impl.dart b/pkg/analyzer/lib/src/analyzer_impl.dart
index 4de0a6a1b5fd9a75aaf644657f8fd49e1dfc298e..40df537b7e29d2f9913865118c5d4bfec387fd18 100644
--- a/pkg/analyzer/lib/src/analyzer_impl.dart
+++ b/pkg/analyzer/lib/src/analyzer_impl.dart
@@ -24,6 +24,7 @@ import 'package:analyzer/file_system/physical_file_system.dart';
 import 'package:analyzer/source/package_map_resolver.dart';
 import 'package:analyzer/source/package_map_provider.dart';
 import 'package:analyzer/source/pub_package_map_provider.dart';
+import 'package:analyzer/src/generated/java_engine.dart';
 
 /**
  * The maximum number of sources for which AST structures should be kept in the cache.
@@ -411,24 +412,30 @@ class StdLogger extends Logger {
   StdLogger(this.log);
 
   @override
-  void logError(String message) {
+  void logError(String message, [CaughtException exception]) {
     stderr.writeln(message);
+    if (exception != null) {
+      stderr.writeln(exception);
+    }
   }
 
   @override
-  void logError2(String message, Exception exception) {
+  void logError2(String message, Object exception) {
     stderr.writeln(message);
   }
 
   @override
-  void logInformation(String message) {
+  void logInformation(String message, [CaughtException exception]) {
     if (log) {
       stdout.writeln(message);
+      if (exception != null) {
+        stderr.writeln(exception);
+      }
     }
   }
 
   @override
-  void logInformation2(String message, Exception exception) {
+  void logInformation2(String message, Object exception) {
     if (log) {
       stdout.writeln(message);
     }