diff --git a/java/java-impl/src/com/intellij/lang/java/parser/DeclarationParser.java b/java/java-impl/src/com/intellij/lang/java/parser/DeclarationParser.java
index 7b933bc52379..5e19fa2b585c 100644
--- a/java/java-impl/src/com/intellij/lang/java/parser/DeclarationParser.java
+++ b/java/java-impl/src/com/intellij/lang/java/parser/DeclarationParser.java
@@ -174,7 +174,7 @@ public class DeclarationParser {
     }
   }
 
-  private static void parseClassBodyDeclarations(final PsiBuilder builder, final boolean isAnnotation) {
+  public static void parseClassBodyDeclarations(final PsiBuilder builder, final boolean isAnnotation) {
     final Context context = isAnnotation ? Context.ANNOTATION_INTERFACE : Context.CLASS;
 
     PsiBuilder.Marker invalidElements = null;
diff --git a/java/java-impl/src/com/intellij/lang/java/parser/JavaParserUtil.java b/java/java-impl/src/com/intellij/lang/java/parser/JavaParserUtil.java
index 5f7105e29f22..f6f698da2cf3 100644
--- a/java/java-impl/src/com/intellij/lang/java/parser/JavaParserUtil.java
+++ b/java/java-impl/src/com/intellij/lang/java/parser/JavaParserUtil.java
@@ -20,7 +20,9 @@ import com.intellij.lang.*;
 import com.intellij.lang.java.JavaParserDefinition;
 import com.intellij.lexer.Lexer;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.util.Condition;
 import com.intellij.openapi.util.Key;
+import com.intellij.openapi.util.Pair;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.pom.java.LanguageLevel;
 import com.intellij.psi.JavaTokenType;
@@ -43,6 +45,8 @@ import java.util.List;
 
 public class JavaParserUtil {
   private static final Key<LanguageLevel> LANG_LEVEL_KEY = Key.create("JavaParserUtil.LanguageLevel");
+  private static final Key<Boolean> DEEP_PARSE_BLOCKS_IN_STATEMENTS = Key.create("JavaParserUtil.ParserExtender");
+  private static final Key<ParserExtender> PARSER_EXTENDER_KEY = Key.create("JavaParserUtil.ParserExtender");
 
   public interface ParserWrapper {
     void parse(PsiBuilder builder);
@@ -52,6 +56,10 @@ public class JavaParserUtil {
     @Nullable PsiBuilder.Marker parse(PsiBuilder builder);
   }
 
+  public interface ParserExtender extends MarkingParserWrapper {
+    boolean enroll(PsiBuilder builder);
+  }
+
   public static final WhitespacesAndCommentsBinder GREEDY_RIGHT_EDGE_PROCESSOR = new WhitespacesAndCommentsBinder() {
     public int getEdgePosition(final List<IElementType> tokens, final boolean atStreamEdge, final TokenTextGetter getter) {
       return tokens.size();
@@ -145,6 +153,24 @@ public class JavaParserUtil {
     return level;
   }
 
+  public static void setParseStatementCodeBlocksDeep(final PsiBuilder builder, final boolean deep) {
+    builder.putUserDataUnprotected(DEEP_PARSE_BLOCKS_IN_STATEMENTS, deep);
+  }
+
+  public static boolean isParseStatementCodeBlocksDeep(final PsiBuilder builder) {
+    return Boolean.TRUE.equals(builder.getUserDataUnprotected(DEEP_PARSE_BLOCKS_IN_STATEMENTS));
+  }
+
+  public static void setParserExtender(final PsiBuilder builder, final ParserExtender extender) {
+    builder.putUserDataUnprotected(PARSER_EXTENDER_KEY, extender);
+  }
+
+  @Nullable
+  public static ParserExtender getParserExtender(final PsiBuilder builder) {
+    final ParserExtender extender = builder.getUserDataUnprotected(PARSER_EXTENDER_KEY);
+    return extender != null && extender.enroll(builder) ? extender : null;
+  }
+
   @NotNull
   public static PsiBuilder createBuilder(final ASTNode chameleon) {
     final PsiElement psi = chameleon.getPsi();
@@ -291,6 +317,22 @@ public class JavaParserUtil {
     };
   }
 
+  public static PsiBuilder stoppingBuilder(final PsiBuilder builder, final Condition<Pair<IElementType, String>> condition) {
+    return new PsiBuilderAdapter(builder) {
+      @Override
+      public IElementType getTokenType() {
+        final Pair<IElementType, String> input = Pair.create(builder.getTokenType(), builder.getTokenText());
+        return condition.value(input) ? null : super.getTokenType();
+      }
+
+      @Override
+      public boolean eof() {
+        final Pair<IElementType, String> input = Pair.create(builder.getTokenType(), builder.getTokenText());
+        return condition.value(input) || super.eof();
+      }
+    };
+  }
+
   public static class PsiBuilderAdapter implements PsiBuilder {
     protected final PsiBuilder myDelegate;
 
@@ -298,23 +340,27 @@ public class JavaParserUtil {
       myDelegate = delegate;
     }
 
+    @Override
     public Project getProject() {
       return myDelegate.getProject();
     }
 
+    @Override
     public CharSequence getOriginalText() {
       return myDelegate.getOriginalText();
     }
 
+    @Override
     public void advanceLexer() {
       myDelegate.advanceLexer();
     }
 
-    @Nullable
+    @Override @Nullable
     public IElementType getTokenType() {
       return myDelegate.getTokenType();
     }
 
+    @Override
     public void setTokenTypeRemapper(final ITokenTypeRemapper remapper) {
       myDelegate.setTokenTypeRemapper(remapper);
     }
@@ -344,53 +390,62 @@ public class JavaParserUtil {
       return myDelegate.rawTokenTypeStart(steps);
     }
 
-    @Nullable @NonNls
+    @Override @Nullable @NonNls
     public String getTokenText() {
       return myDelegate.getTokenText();
     }
 
+    @Override
     public int getCurrentOffset() {
       return myDelegate.getCurrentOffset();
     }
 
+    @Override
     public Marker mark() {
       return myDelegate.mark();
     }
 
+    @Override
     public void error(final String messageText) {
       myDelegate.error(messageText);
     }
 
+    @Override
     public boolean eof() {
       return myDelegate.eof();
     }
 
+    @Override
     public ASTNode getTreeBuilt() {
       return myDelegate.getTreeBuilt();
     }
 
+    @Override
     public FlyweightCapableTreeStructure<LighterASTNode> getLightTree() {
       return myDelegate.getLightTree();
     }
 
+    @Override
     public void setDebugMode(final boolean dbgMode) {
       myDelegate.setDebugMode(dbgMode);
     }
 
+    @Override
     public void enforceCommentTokens(final TokenSet tokens) {
       myDelegate.enforceCommentTokens(tokens);
     }
 
-    @Nullable
+    @Override @Nullable
     public LighterASTNode getLatestDoneMarker() {
       return myDelegate.getLatestDoneMarker();
     }
 
-    @Nullable
+    @Override @Nullable
     public <T> T getUserData(@NotNull final Key<T> key) {
       return myDelegate.getUserData(key);
     }
 
+    @Override
     public <T> void putUserData(@NotNull final Key<T> key, @Nullable final T value) {
       myDelegate.putUserData(key, value);
     }
@@ -401,7 +456,7 @@ public class JavaParserUtil {
     }
 
     @Override
-    public <T> void putUserDataUnprotected(@NotNull Key<T> key, @Nullable T value) {
+    public <T> void putUserDataUnprotected(@NotNull final Key<T> key, @Nullable final T value) {
       myDelegate.putUserDataUnprotected(key, value);
     }
   }
diff --git a/java/java-impl/src/com/intellij/lang/java/parser/StatementParser.java b/java/java-impl/src/com/intellij/lang/java/parser/StatementParser.java
index 42c861dc6cfa..38f055b08a61 100644
--- a/java/java-impl/src/com/intellij/lang/java/parser/StatementParser.java
+++ b/java/java-impl/src/com/intellij/lang/java/parser/StatementParser.java
@@ -34,8 +34,6 @@ import static com.intellij.lang.java.parser.JavaParserUtil.*;
 
 
 public class StatementParser {
-  private static final boolean DEEP_PARSE_BLOCKS_IN_STATEMENTS = false;
-
   private enum BraceMode {
     TILL_FIRST, TILL_LAST
   }
@@ -46,8 +44,13 @@ public class StatementParser {
 
   @Nullable
   public static PsiBuilder.Marker parseCodeBlock(final PsiBuilder builder) {
+    return parseCodeBlock(builder, false);
+  }
+
+  @Nullable
+  public static PsiBuilder.Marker parseCodeBlock(final PsiBuilder builder, final boolean isStatement) {
     if (builder.getTokenType() != JavaTokenType.LBRACE) return null;
-    else if (DEEP_PARSE_BLOCKS_IN_STATEMENTS) return parseCodeBlockDeep(builder, false);
+    else if (isStatement && isParseStatementCodeBlocksDeep(builder)) return parseCodeBlockDeep(builder, false);
 
     final PsiBuilder.Marker codeBlock = builder.mark();
     builder.advanceLexer();
@@ -166,10 +169,10 @@ public class StatementParser {
 
   @Nullable
   public static PsiBuilder.Marker parseStatement(final PsiBuilder builder) {
+    final ParserExtender extender = getParserExtender(builder);
+    if (extender != null) return extender.parse(builder);
+
     final IElementType tokenType = builder.getTokenType();
-
-    // todo: custom parsers (?)
-
     if (tokenType == JavaTokenType.IF_KEYWORD) {
       return parseIfStatement(builder);
     }
@@ -507,7 +510,7 @@ public class StatementParser {
       return statement;
     }
 
-    final PsiBuilder.Marker body = parseCodeBlock(builder);
+    final PsiBuilder.Marker body = parseCodeBlock(builder, true);
     if (body == null) {
       error(builder, JavaErrorMessages.message("expected.lbrace"));
     }
@@ -595,7 +598,7 @@ public class StatementParser {
       return statement;
     }
 
-    final PsiBuilder.Marker body = parseCodeBlock(builder);
+    final PsiBuilder.Marker body = parseCodeBlock(builder, true);
     if (body == null) {
       error(builder, JavaErrorMessages.message("expected.lbrace"));
     }
@@ -609,7 +612,7 @@ public class StatementParser {
     final PsiBuilder.Marker statement = builder.mark();
     builder.advanceLexer();
 
-    final PsiBuilder.Marker tryBlock = parseCodeBlock(builder);
+    final PsiBuilder.Marker tryBlock = parseCodeBlock(builder, true);
     if (tryBlock == null) {
       error(builder, JavaErrorMessages.message("expected.lbrace"));
       done(statement, JavaElementType.TRY_STATEMENT);
@@ -627,7 +630,7 @@ public class StatementParser {
     }
 
     if (expect(builder, JavaTokenType.FINALLY_KEYWORD)) {
-      final PsiBuilder.Marker finallyBlock = parseCodeBlock(builder);
+      final PsiBuilder.Marker finallyBlock = parseCodeBlock(builder, true);
       if (finallyBlock == null) {
         error(builder, JavaErrorMessages.message("expected.lbrace"));
       }
@@ -659,7 +662,7 @@ public class StatementParser {
       return false;
     }
 
-    final PsiBuilder.Marker body = parseCodeBlock(builder);
+    final PsiBuilder.Marker body = parseCodeBlock(builder, true);
     if (body == null) {
       error(builder, JavaErrorMessages.message("expected.lbrace"));
       done(section, JavaElementType.CATCH_SECTION);
@@ -699,7 +702,7 @@ public class StatementParser {
   @NotNull
   private static PsiBuilder.Marker parseBlockStatement(final PsiBuilder builder) {
     final PsiBuilder.Marker statement = builder.mark();
-    parseCodeBlock(builder);
+    parseCodeBlock(builder, true);
     done(statement, JavaElementType.BLOCK_STATEMENT);
     return statement;
   }
diff --git a/java/jsp-spi/src/com/intellij/psi/jsp/JspElementType.java b/java/jsp-spi/src/com/intellij/psi/jsp/JspElementType.java
index 77201eca79bf..a9f7ca3dbb6a 100644
--- a/java/jsp-spi/src/com/intellij/psi/jsp/JspElementType.java
+++ b/java/jsp-spi/src/com/intellij/psi/jsp/JspElementType.java
@@ -15,27 +15,32 @@
  */
 package com.intellij.psi.jsp;
 
-import com.intellij.lang.StdLanguages;
 import com.intellij.psi.tree.IElementType;
-import com.intellij.psi.tree.jsp.IJspElementType;
 
 /**
  * @author peter
+ * todo[r.sh] replace usages with JspElementTypeEx in implementation modules
  */
-public interface JspElementType extends JspTokenType /*extends BaseJspElementType, ELElementType*/ {
-  IElementType HOLDER_TEMPLATE_DATA = new IJspElementType("HOLDER_TEMPLATE_DATA");
+public interface JspElementType extends JspTokenType {
+  enum Kind {
+    HOLDER_TEMPLATE_DATA, JSP_TEMPLATE_EXPRESSION, HOLDER_METHOD, JSP_TEMPLATE_STATEMENT, JSP_CLASS_LEVEL_DECLARATION_STATEMENT,
+    JSP_CODE_BLOCK, JSP_WHILE_STATEMENT, JSP_BLOCK_STATEMENT, JSP_CLASS, JSP_METHOD_CALL, JSP_EXPRESSION, JSP_SCRIPTLET
+  }
 
-  IElementType JSP_TEMPLATE_EXPRESSION = new IElementType("JSP_TEMPLATE_EXPRESSION", StdLanguages.JAVA);
-  IElementType HOLDER_METHOD = new IJspElementType("HOLDER_METHOD");
+  IElementType HOLDER_TEMPLATE_DATA = JspSpiUtil.getJspElementType(Kind.HOLDER_TEMPLATE_DATA);
+
+  IElementType JSP_TEMPLATE_EXPRESSION = JspSpiUtil.getJspElementType(Kind.JSP_TEMPLATE_EXPRESSION);
+  IElementType HOLDER_METHOD = JspSpiUtil.getJspElementType(Kind.HOLDER_METHOD);
   
-  IElementType JSP_TEMPLATE_STATEMENT = new IElementType("JSP_TEMPLATE_STATEMENT", StdLanguages.JAVA);
-  IElementType JSP_CLASS_LEVEL_DECLARATION_STATEMENT = new IElementType("JSP_CLASS_LEVEL_DECLARATION_STATEMENT", StdLanguages.JAVA);
-  IElementType JSP_CODE_BLOCK = new IElementType("JSP_CODE_BLOCK", StdLanguages.JAVA);
-  IElementType JSP_WHILE_STATEMENT = new IElementType("JSP_DO_WHILE_STATEMENT", StdLanguages.JAVA);
-  IElementType JSP_BLOCK_STATEMENT = new IElementType("JSP_BLOCK_STATEMENT", StdLanguages.JAVA);
+  IElementType JSP_TEMPLATE_STATEMENT = JspSpiUtil.getJspElementType(Kind.JSP_TEMPLATE_STATEMENT);
+  IElementType JSP_CLASS_LEVEL_DECLARATION_STATEMENT = JspSpiUtil.getJspElementType(Kind.JSP_CLASS_LEVEL_DECLARATION_STATEMENT);
+  IElementType JSP_CODE_BLOCK = JspSpiUtil.getJspElementType(Kind.JSP_CODE_BLOCK);
+  IElementType JSP_WHILE_STATEMENT = JspSpiUtil.getJspElementType(Kind.JSP_WHILE_STATEMENT);
+  IElementType JSP_BLOCK_STATEMENT = JspSpiUtil.getJspElementType(Kind.JSP_BLOCK_STATEMENT);
+
+  IElementType JSP_CLASS = JspSpiUtil.getJspElementType(Kind.JSP_CLASS);
+  IElementType JSP_METHOD_CALL = JspSpiUtil.getJspElementType(Kind.JSP_METHOD_CALL);
 
-  IElementType JSP_CLASS = new IJspElementType("JSP_CLASS");
-  IElementType JSP_METHOD_CALL = new IElementType("JSP_METHOD_CALL", StdLanguages.JAVA);
   IElementType JSP_EXPRESSION = JspSpiUtil.getJspExpressionType();
   IElementType JSP_SCRIPTLET = JspSpiUtil.getJspScriptletType();
 }
diff --git a/java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java b/java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java
index 01ba9e47b174..5f78d155c774 100644
--- a/java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java
+++ b/java/jsp-spi/src/com/intellij/psi/jsp/JspSpiUtil.java
@@ -217,16 +217,21 @@ public abstract class JspSpiUtil {
     }
   }
 
+  @Nullable
+  public static IElementType getJspElementType(@NotNull final JspElementType.Kind kind) {
+    final JspSpiUtil spiUtil = getJspSpiUtil();
+    return spiUtil != null ? spiUtil._getJspElementType(kind) : null;
+  }
+
+  @Nullable
   public static IElementType getJspScriptletType() {
-    JspSpiUtil spiUtil = getJspSpiUtil();
-    return spiUtil != null ? spiUtil._getJspScriptletType():null;
+    return getJspElementType(JspElementType.Kind.JSP_SCRIPTLET);
   }
 
+  @Nullable
   public static IElementType getJspExpressionType() {
-    JspSpiUtil spiUtil = getJspSpiUtil();
-    return spiUtil != null ? spiUtil._getJspExpressionType():null;
+    return getJspElementType(JspElementType.Kind.JSP_EXPRESSION);
   }
 
-  protected abstract IElementType _getJspExpressionType();
-  protected abstract IElementType _getJspScriptletType();
+  protected abstract IElementType _getJspElementType(@NotNull final JspElementType.Kind kind);
 }