Assorted fixes for running frameworks apps

- Adding Heap::target_utililization_
- Convert ClassNotFoundError to ClassNotFoundException in Class.forName
- Finish String::GetHashCode
- Changed Runtime.gc to unimplemented
- Disable preload simulation in oat_process
- Empty native placeholder for org.apache.harmony.dalvik.ddmc.DdmServer
- Bonus: Fix problem with reflective invocation of constructors and private methods

Change-Id: If11b273e2f82e8e0fa7161a756098514e1156a19
diff --git a/src/org_apache_harmony_dalvik_ddmc_DdmServer.cc b/src/org_apache_harmony_dalvik_ddmc_DdmServer.cc
new file mode 100644
index 0000000..3392689
--- /dev/null
+++ b/src/org_apache_harmony_dalvik_ddmc_DdmServer.cc
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "logging.h"
+
+#include "JniConstants.h"  // Last to avoid problems with LOG redefinition.
+#include "ScopedPrimitiveArray.h"  // Last to avoid problems with LOG redefinition.
+
+namespace art {
+
+namespace {
+
+static void DdmServer_nativeSendChunk(JNIEnv* env, jclass, jint type,
+                                      jbyteArray javaData, jint offset, jint length)
+{
+  ScopedByteArrayRO data(env, javaData);
+  DCHECK_LE(offset + length, static_cast<int32_t>(data.size()));
+  UNIMPLEMENTED(WARNING) << "dvmDbgDdmSendChunk(type, length, data->get() + offset);";
+}
+
+static JNINativeMethod gMethods[] = {
+  NATIVE_METHOD(DdmServer, nativeSendChunk, "(I[BII)V"),
+};
+
+}  // namespace
+
+void register_org_apache_harmony_dalvik_ddmc_DdmServer(JNIEnv* env) {
+    jniRegisterNativeMethods(env, "org/apache/harmony/dalvik/ddmc/DdmServer", gMethods, NELEM(gMethods));
+}
+
+}  // namespace art