### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/ast/ConstructorDeclaration.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/ast/ConstructorDeclaration.java,v
retrieving revision 1.104
diff -u -r1.104 ConstructorDeclaration.java
--- compiler/org/eclipse/jdt/internal/compiler/ast/ConstructorDeclaration.java	7 Mar 2009 00:58:57 -0000	1.104
+++ compiler/org/eclipse/jdt/internal/compiler/ast/ConstructorDeclaration.java	31 Mar 2009 11:54:54 -0000
@@ -62,6 +62,10 @@
 		} else if (!constructorBinding.isOrEnclosedByPrivateType()) {
 			break checkUnused;
  		}
+		// https://bugs.eclipse.org/bugs/show_bug.cgi?id=270446, When the AST built is an abridged version
+		// we don't have all tree nodes we would otherwise expect. (see ASTParser.setFocalPosition)
+		if (this.constructorCall == null)
+			break checkUnused; 
 		// https://bugs.eclipse.org/bugs/show_bug.cgi?id=264991, Don't complain about this
 		// constructor being unused if the base class doesn't have a no-arg constructor.
 		// See that a seemingly unused constructor that chains to another constructor with a
#P org.eclipse.jdt.core.tests.model
Index: src/org/eclipse/jdt/core/tests/dom/ASTConverterTest2.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.model/src/org/eclipse/jdt/core/tests/dom/ASTConverterTest2.java,v
retrieving revision 1.193
diff -u -r1.193 ASTConverterTest2.java
--- src/org/eclipse/jdt/core/tests/dom/ASTConverterTest2.java	29 Nov 2008 22:35:14 -0000	1.193
+++ src/org/eclipse/jdt/core/tests/dom/ASTConverterTest2.java	31 Mar 2009 11:54:59 -0000
@@ -5539,5 +5539,35 @@
 				workingCopy.discardWorkingCopy();
 		}
 	}
+	
+	// https://bugs.eclipse.org/bugs/show_bug.cgi?id=270446. NPE while building abridged AST
+	public void test0610() throws CoreException {
+		ICompilationUnit workingCopy = null;
+		try {
+			workingCopy = getWorkingCopy(
+				"/Converter/src/X.java",
+				"public class X {\n" +
+				"	  private class B {\n" +
+				"	    public B() {\n" +
+				"	    }\n" +
+				"	  }\n" +
+				"	  public X() {\n" +
+				"	  }\n" +
+				"	}\n"
+			);
+			
+			// Create parser
+			ASTParser parser = ASTParser.newParser(AST.JLS3);
+			parser.setSource(workingCopy);
+			parser.setFocalPosition(0);
+			parser.setResolveBindings(true);
+
+			ASTNode result = parser.createAST(null);
+			assertNotNull("Should get an AST", result);
+		} finally {
+			if (workingCopy != null)
+				workingCopy.discardWorkingCopy();
+		}
+	}
 
 }