### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: model/org/eclipse/jdt/internal/core/CompilationUnitProblemFinder.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/CompilationUnitProblemFinder.java,v
retrieving revision 1.67
diff -u -r1.67 CompilationUnitProblemFinder.java
--- model/org/eclipse/jdt/internal/core/CompilationUnitProblemFinder.java	4 May 2010 14:04:56 -0000	1.67
+++ model/org/eclipse/jdt/internal/core/CompilationUnitProblemFinder.java	17 Aug 2010 08:10:32 -0000
@@ -96,20 +96,33 @@
 
 		CompilationResult result =
 			new CompilationResult(sourceTypes[0].getFileName(), 1, 1, this.options.maxProblemsPerUnit);
+		
+		// https://bugs.eclipse.org/bugs/show_bug.cgi?id=305259
+		long currentSourceLevel = this.options.sourceLevel;
+		long currentComplianceLevel = this.options.complianceLevel;
+		
+		try {
+			IJavaProject project = ((SourceTypeElementInfo) sourceTypes[0]).getHandle().getJavaProject();
+			this.options.sourceLevel = CompilerOptions.versionToJdkLevel(project.getOption(JavaCore.COMPILER_SOURCE, true));
+			this.options.complianceLevel = CompilerOptions.versionToJdkLevel(project.getOption(JavaCore.COMPILER_COMPLIANCE, true));
+
+			// need to hold onto this
+			CompilationUnitDeclaration unit =
+				SourceTypeConverter.buildCompilationUnit(
+						sourceTypes,//sourceTypes[0] is always toplevel here
+						SourceTypeConverter.FIELD_AND_METHOD // need field and methods
+						| SourceTypeConverter.MEMBER_TYPE // need member types
+						| SourceTypeConverter.FIELD_INITIALIZATION, // need field initialization
+						this.lookupEnvironment.problemReporter,
+						result);
 
-		// need to hold onto this
-		CompilationUnitDeclaration unit =
-			SourceTypeConverter.buildCompilationUnit(
-				sourceTypes,//sourceTypes[0] is always toplevel here
-				SourceTypeConverter.FIELD_AND_METHOD // need field and methods
-				| SourceTypeConverter.MEMBER_TYPE // need member types
-				| SourceTypeConverter.FIELD_INITIALIZATION, // need field initialization
-				this.lookupEnvironment.problemReporter,
-				result);
-
-		if (unit != null) {
-			this.lookupEnvironment.buildTypeBindings(unit, accessRestriction);
-			this.lookupEnvironment.completeTypeBindings(unit);
+			if (unit != null) {
+				this.lookupEnvironment.buildTypeBindings(unit, accessRestriction);
+				this.lookupEnvironment.completeTypeBindings(unit);
+			}
+		} finally {
+			this.options.sourceLevel = currentSourceLevel;
+			this.options.complianceLevel = currentComplianceLevel;
 		}
 	}