### Eclipse Workspace Patch 1.0
#P org.eclipse.jdt.core
Index: compiler/org/eclipse/jdt/internal/compiler/lookup/ClassScope.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core/compiler/org/eclipse/jdt/internal/compiler/lookup/ClassScope.java,v
retrieving revision 1.172
diff -u -r1.172 ClassScope.java
--- compiler/org/eclipse/jdt/internal/compiler/lookup/ClassScope.java	16 Jun 2009 17:40:44 -0000	1.172
+++ compiler/org/eclipse/jdt/internal/compiler/lookup/ClassScope.java	8 Jan 2010 11:46:13 -0000
@@ -299,13 +299,16 @@
 			methodBindings[1] = sourceType.addSyntheticEnumMethod(TypeConstants.VALUEOF); // add <EnumType> valueOf()
 		}
 		// create bindings for source methods
+		boolean hasNativeMethods = false;
 		if (sourceType.isAbstract()) {
 			for (int i = 0; i < size; i++) {
 				if (i != clinitIndex) {
 					MethodScope scope = new MethodScope(this, methods[i], false);
 					MethodBinding methodBinding = scope.createMethod(methods[i]);
-					if (methodBinding != null) // is null if binding could not be created
+					if (methodBinding != null) { // is null if binding could not be created
 						methodBindings[count++] = methodBinding;
+						hasNativeMethods = hasNativeMethods || methodBinding.isNative();
+					}
 				}
 			}
 		} else {
@@ -317,6 +320,7 @@
 					if (methodBinding != null) { // is null if binding could not be created
 						methodBindings[count++] = methodBinding;
 						hasAbstractMethods = hasAbstractMethods || methodBinding.isAbstract();
+						hasNativeMethods = hasNativeMethods || methodBinding.isNative();
 					}
 				}
 			}
@@ -327,6 +331,18 @@
 			System.arraycopy(methodBindings, 0, methodBindings = new MethodBinding[count], 0, count);
 		sourceType.tagBits &= ~(TagBits.AreMethodsSorted|TagBits.AreMethodsComplete); // in case some static imports reached already into this type
 		sourceType.setMethods(methodBindings);
+		// https://bugs.eclipse.org/bugs/show_bug.cgi?id=243917, conservatively tag all methods and fields as
+		// being in use if there is a native method in the class.
+		if (hasNativeMethods) {
+			MethodBinding[] methods2 = sourceType.methods();
+			for (int i = 0; i < methods2.length; i++) {
+				methods2[i].modifiers |= ExtraCompilerModifiers.AccLocallyUsed;
+			}
+			FieldBinding[] fields = sourceType.fields();
+			for (int i = 0; i < fields.length; i++) {
+				fields[i].modifiers |= ExtraCompilerModifiers.AccLocallyUsed;	
+			}
+		}
 	}
 
 	SourceTypeBinding buildType(SourceTypeBinding enclosingType, PackageBinding packageBinding, AccessRestriction accessRestriction) {
#P org.eclipse.jdt.core.tests.compiler
Index: src/org/eclipse/jdt/core/tests/compiler/regression/ProblemTypeAndMethodTest.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.jdt.core.tests.compiler/src/org/eclipse/jdt/core/tests/compiler/regression/ProblemTypeAndMethodTest.java,v
retrieving revision 1.24
diff -u -r1.24 ProblemTypeAndMethodTest.java
--- src/org/eclipse/jdt/core/tests/compiler/regression/ProblemTypeAndMethodTest.java	7 Jan 2010 20:17:45 -0000	1.24
+++ src/org/eclipse/jdt/core/tests/compiler/regression/ProblemTypeAndMethodTest.java	8 Jan 2010 11:46:34 -0000
@@ -5286,4 +5286,24 @@
 		false,
 		null);
 }
+// https://bugs.eclipse.org/bugs/show_bug.cgi?id=243917
+public void test105() {
+	this.runNegativeTest(
+		new String[] {
+			"X.java",
+			"public class X {\n" +
+			"    static {\n" +
+			"        System.loadLibrary(\"tpbrooktrout\");\n" +
+			"    }\n" +
+			"    private final int time;\n" +
+			"    private int foo() { return 0;}\n" +
+			"    private class Inner {}\n" +
+			"    public X(int delay) {\n" +
+			"        time = delay;\n" +
+			"    }\n" +
+			"    public native void run(Inner i);\n" +
+			"}\n"
+		},
+		"");
+}
 }