New analyzer_experimental snapshot.

editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/processor/CollectionSemanticProcessor.java

Index: editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/processor/CollectionSemanticProcessor.java
diff --git a/editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/processor/CollectionSemanticProcessor.java b/editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/processor/CollectionSemanticProcessor.java
index 3fb5c640a3ee3191ae354f058e5cde00b9a504b0..2fec61beead31ba8c25a306f39940f5d50650d64 100644
--- a/editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/processor/CollectionSemanticProcessor.java
+++ b/editor/util/plugins/com.google.dart.java2dart/src/com/google/dart/java2dart/processor/CollectionSemanticProcessor.java
@@ -50,7 +50,6 @@ import static com.google.dart.java2dart.util.ASTFactory.propertyAccess;
 import static com.google.dart.java2dart.util.ASTFactory.typeName;
 import static com.google.dart.java2dart.util.TokenFactory.token;
 
-import org.eclipse.core.runtime.Assert;
 import org.eclipse.jdt.core.dom.IMethodBinding;
 import org.eclipse.jdt.core.dom.ITypeBinding;
 
@@ -190,13 +189,16 @@ public class CollectionSemanticProcessor extends SemanticProcessor {
           return null;
         }
         if (isMethodInClass(node, "put", "java.util.Map")) {
-          Assert.isTrue(node.getParent() instanceof ExpressionStatement);
-          IndexExpression indexExpression = indexExpression(target, args.get(0));
-          AssignmentExpression assignment = assignmentExpression(
-              indexExpression,
-              TokenType.EQ,
-              args.get(1));
-          replaceNode(node, assignment);
+          if (node.getParent() instanceof ExpressionStatement) {
+            IndexExpression indexExpression = indexExpression(target, args.get(0));
+            AssignmentExpression assignment = assignmentExpression(
+                indexExpression,
+                TokenType.EQ,
+                args.get(1));
+            replaceNode(node, assignment);
+          } else {
+            replaceNode(node, methodInvocation("javaMapPut", target, args.get(0), args.get(1)));
+          }
           return null;
         }
         if (isMethodInClass(node, "entrySet", "java.util.Map")) {