New analyzer snapshot (with CaughtException).

editor/util/plugins/com.google.dart.java2dart/resources/java_engine.dart

Index: editor/util/plugins/com.google.dart.java2dart/resources/java_engine.dart
diff --git a/editor/util/plugins/com.google.dart.java2dart/resources/java_engine.dart b/editor/util/plugins/com.google.dart.java2dart/resources/java_engine.dart
index 497f6cf4da87790ab937bd9e085f4465fe91aa70..37cbe39866ba63829dd89647a5329ca53aa52c14 100644
--- a/editor/util/plugins/com.google.dart.java2dart/resources/java_engine.dart
+++ b/editor/util/plugins/com.google.dart.java2dart/resources/java_engine.dart
@@ -202,3 +202,88 @@ class UUID {
   String toString() => id;
   static UUID randomUUID() => new UUID((__nextId).toString());
 }
+
+
+/**
+ * Instances of the class `AnalysisException` represent an exception that
+ * occurred during the analysis of one or more sources.
+ */
+class AnalysisException implements Exception {
+  /**
+   * The message that explains why the exception occurred.
+   */
+  final String message;
+
+  /**
+   * The exception that caused this exception, or `null` if this exception was
+   * not caused by another exception.
+   */
+  final CaughtException cause;
+
+  /**
+   * Initialize a newly created exception to have the given [message] and
+   * [cause].
+   */
+  AnalysisException([this.message = 'Exception', this.cause = null]);
+}
+
+
+/**
+ * Instances of the class `CaughtException` represent an exception that was
+ * caught and has an associated stack trace.
+ */
+class CaughtException implements Exception {
+  /**
+   * The exception that was caught.
+   */
+  final Exception exception;
+
+  /**
+   * The stack trace associated with the exception.
+   */
+  StackTrace stackTrace;
+
+  /**
+   * Initialize a newly created caught exception to have the given [exception]
+   * and [stackTrace].
+   */
+  CaughtException(this.exception, stackTrace) {
+    if (stackTrace == null) {
+      try {
+        throw this;
+      } catch (_, st) {
+        stackTrace = st;
+      }
+    }
+    this.stackTrace = stackTrace;
+  }
+
+  @override
+  String toString() {
+    StringBuffer buffer = new StringBuffer();
+    _writeOn(buffer);
+    return buffer.toString();
+  }
+
+  /**
+   * Write a textual representation of the caught exception and its associated
+   * stack trace.
+   */
+  void _writeOn(StringBuffer buffer) {
+    if (exception is AnalysisException) {
+      AnalysisException analysisException = exception;
+      buffer.writeln(analysisException.message);
+      if (stackTrace != null) {
+        buffer.writeln(stackTrace.toString());
+      }
+      CaughtException cause = analysisException.cause;
+      if (cause != null) {
+        buffer.write('Caused by ');
+        cause._writeOn(buffer);
+      }
+    } else {
+      buffer.writeln(exception.toString());
+      buffer.writeln(stackTrace.toString());
+    }
+  }
+}