Index: compiler/org/eclipse/jdt/internal/compiler/Compiler.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/Compiler.java,v
retrieving revision 1.90
diff -u -r1.90 Compiler.java
--- compiler/org/eclipse/jdt/internal/compiler/Compiler.java	6 Mar 2007 02:38:51 -0000	1.90
+++ compiler/org/eclipse/jdt/internal/compiler/Compiler.java	20 Mar 2007 19:12:24 -0000
@@ -733,7 +733,9 @@
 			this.handleInternalException(e, unit, null);
 			throw e; // rethrow
 		} finally {
-			this.lookupEnvironment.unitBeingCompleted = null;
+			// leave this.lookupEnvironment.unitBeingCompleted set to the unit, until another unit is resolved
+			// other calls to dom can cause classpath errors to be detected, resulting in AbortCompilation exceptions
+
 			// No reset is performed there anymore since,
 			// within the CodeAssist (or related tools),
 			// the compiler may be called *after* a call