diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/ClassDependencyListener.java b/classlib/src/main/java/org/teavm/classlib/java/lang/ClassDependencyListener.java
index c49d83659..da2115848 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/lang/ClassDependencyListener.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/ClassDependencyListener.java
@@ -29,6 +29,9 @@ public class ClassDependencyListener implements DependencyPlugin {
                         .linkClass(type.getName(), location)
                         .initClass(location));
                 break;
+            case "getSimpleNameCacheLowLevel":
+                method.getResult().propagate(agent.getType("java.lang.String"));
+                break;
         }
     }
 }
diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/ObjectDependencyPlugin.java b/classlib/src/main/java/org/teavm/classlib/java/lang/ObjectDependencyPlugin.java
new file mode 100644
index 000000000..ac264bf72
--- /dev/null
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/ObjectDependencyPlugin.java
@@ -0,0 +1,32 @@
+/*
+ *  Copyright 2018 Alexey Andreev.
+ *
+ *  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.
+ */
+package org.teavm.classlib.java.lang;
+
+import org.teavm.dependency.DependencyAgent;
+import org.teavm.dependency.DependencyPlugin;
+import org.teavm.dependency.MethodDependency;
+import org.teavm.model.CallLocation;
+
+public class ObjectDependencyPlugin implements DependencyPlugin {
+    @Override
+    public void methodReached(DependencyAgent agent, MethodDependency method, CallLocation location) {
+        switch (method.getMethod().getName()) {
+            case "clone":
+                method.getVariable(0).connect(method.getResult());
+                break;
+        }
+    }
+}
diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/TClass.java b/classlib/src/main/java/org/teavm/classlib/java/lang/TClass.java
index 348b7c330..3bdbff0fa 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/lang/TClass.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/TClass.java
@@ -27,6 +27,7 @@ import java.util.Objects;
 import java.util.Set;
 import org.teavm.backend.javascript.spi.GeneratedBy;
 import org.teavm.backend.javascript.spi.InjectedBy;
+import org.teavm.classlib.PlatformDetector;
 import org.teavm.classlib.impl.DeclaringClassMetadataGenerator;
 import org.teavm.classlib.impl.reflection.Flags;
 import org.teavm.classlib.impl.reflection.JSClass;
@@ -103,24 +104,24 @@ public class TClass<T> extends TObject implements TAnnotatedElement {
         return Address.ofObject(this).<RuntimeClass>toStructure().isSupertypeOf.apply(other);
     }
 
-    @DelegateTo("getNameLowLevel")
-    public TString getName() {
-        if (name == null) {
-            name = TString.wrap(Platform.getName(platformClass));
-        }
-        return name;
-    }
-
     @Unmanaged
-    private RuntimeObject getNameLowLevel() {
-        RuntimeClass runtimeClass = Address.ofObject(this).toStructure();
-        return runtimeClass.name;
+    public TString getName() {
+        if (PlatformDetector.isLowLevel()) {
+            return TString.wrap(Platform.getName(platformClass));
+        } else {
+            if (name == null) {
+                name = TString.wrap(Platform.getName(platformClass));
+            }
+            return name;
+        }
     }
 
     public TString getSimpleName() {
+        TString simpleName = getSimpleNameCache();
         if (simpleName == null) {
             if (isArray()) {
                 simpleName = getComponentType().getSimpleName().concat(TString.wrap("[]"));
+                setSimpleNameCache(simpleName);
                 return simpleName;
             }
             String name = Platform.getName(platformClass);
@@ -137,10 +138,31 @@ public class TClass<T> extends TObject implements TAnnotatedElement {
                 }
             }
             simpleName = TString.wrap(name);
+            setSimpleNameCache(simpleName);
         }
         return simpleName;
     }
 
+    @DelegateTo("getSimpleNameCacheLowLevel")
+    private TString getSimpleNameCache() {
+        return simpleName;
+    }
+
+    @Unmanaged
+    @PluggableDependency(ClassDependencyListener.class)
+    private RuntimeObject getSimpleNameCacheLowLevel() {
+        return Address.ofObject(this).<RuntimeClass>toStructure().simpleName;
+    }
+
+    private void setSimpleNameCache(TString value) {
+        simpleName = value;
+    }
+
+    @Unmanaged
+    private void setSimpleNameCacheLowLevel(RuntimeObject object) {
+        Address.ofObject(this).<RuntimeClass>toStructure().simpleName = object;
+    }
+
     public boolean isPrimitive() {
         return Platform.isPrimitive(platformClass);
     }
diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/TObject.java b/classlib/src/main/java/org/teavm/classlib/java/lang/TObject.java
index 8e78cb784..909017701 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/lang/TObject.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/TObject.java
@@ -15,6 +15,7 @@
  */
 package org.teavm.classlib.java.lang;
 
+import org.teavm.dependency.PluggableDependency;
 import org.teavm.interop.Address;
 import org.teavm.interop.Async;
 import org.teavm.interop.DelegateTo;
@@ -223,6 +224,7 @@ public class TObject {
 
     @Override
     @DelegateTo("cloneLowLevel")
+    @PluggableDependency(ObjectDependencyPlugin.class)
     protected Object clone() throws TCloneNotSupportedException {
         if (!(this instanceof TCloneable) && Platform.getPlatformObject(this)
                 .getPlatformClass().getMetadata().getArrayItem() == null) {
diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/TString.java b/classlib/src/main/java/org/teavm/classlib/java/lang/TString.java
index 389bb90fc..422416a27 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/lang/TString.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/TString.java
@@ -29,6 +29,7 @@ import org.teavm.classlib.java.util.THashMap;
 import org.teavm.classlib.java.util.TLocale;
 import org.teavm.classlib.java.util.TMap;
 import org.teavm.classlib.java.util.regex.TPattern;
+import org.teavm.interop.Unmanaged;
 
 public class TString extends TObject implements TSerializable, TComparable<TString>, TCharSequence {
     public static final TComparator<TString> CASE_INSENSITIVE_ORDER = (o1, o2) -> o1.compareToIgnoreCase(o2);
@@ -578,6 +579,7 @@ public class TString extends TObject implements TSerializable, TComparable<TStri
         return hashCode;
     }
 
+    @Unmanaged
     public static TString wrap(String str) {
         return (TString) (Object) str;
     }
diff --git a/core/src/main/java/org/teavm/backend/c/CTarget.java b/core/src/main/java/org/teavm/backend/c/CTarget.java
index 1c8f4d342..ad9df6902 100644
--- a/core/src/main/java/org/teavm/backend/c/CTarget.java
+++ b/core/src/main/java/org/teavm/backend/c/CTarget.java
@@ -358,7 +358,9 @@ public class CTarget implements TeaVMTarget {
         writer.println("initHeap(" + minHeapSize + ");");
         generateVirtualTableHeaders(context, writer, types);
         generateStringPoolHeaders(context, writer);
+        writer.println("initStaticFields();");
         generateStaticInitializerCalls(context, writer, classes);
+        writer.println(context.getNames().forClassInitializer("java.lang.String") + "();");
         generateCallToMainMethod(context, writer);
 
         writer.outdent().println("}");
diff --git a/core/src/main/java/org/teavm/backend/c/generate/ClassGenerator.java b/core/src/main/java/org/teavm/backend/c/generate/ClassGenerator.java
index e4b30382f..e00045e29 100644
--- a/core/src/main/java/org/teavm/backend/c/generate/ClassGenerator.java
+++ b/core/src/main/java/org/teavm/backend/c/generate/ClassGenerator.java
@@ -75,6 +75,7 @@ public class ClassGenerator {
     private CodeWriter staticGcRootsWriter;
     private CodeWriter callSiteWriter;
     private CodeWriter codeWriter;
+    private CodeWriter staticFieldInitWriter;
 
     public ClassGenerator(GenerationContext context, ClassReaderSource unprocessedClassSource,
             TagRegistry tagRegistry, Decompiler decompiler, CodeWriter writer) {
@@ -96,6 +97,10 @@ public class ClassGenerator {
         callSiteWriter = writer.fragment();
         codeWriter = writer.fragment();
 
+        writer.println("static void initStaticFields() {").indent();
+        staticFieldInitWriter = writer.fragment();
+        writer.outdent().println("}");
+
         codeGenerator = new CodeGenerator(context, codeWriter, includes);
     }
 
@@ -236,6 +241,14 @@ public class ClassGenerator {
                 if (isReferenceType(field.getType())) {
                     staticFields[staticIndex++] = field.getReference();
                 }
+
+                Object initialValue = field.getInitialValue();
+                if (initialValue == null) {
+                    initialValue = getDefaultValue(field.getType());
+                }
+                staticFieldInitWriter.print(fieldName + " = ");
+                CodeGeneratorUtil.writeValue(staticFieldInitWriter, context, initialValue);
+                staticFieldInitWriter.println(";");
             } else {
                 String fieldName = context.getNames().forMemberField(field.getReference());
                 structWriter.printStrictType(field.getType()).print(" ").print(fieldName).println(";");
@@ -257,6 +270,31 @@ public class ClassGenerator {
         structWriter.outdent().print("} ").print(name).println(";");
     }
 
+    private static Object getDefaultValue(ValueType type) {
+        if (type instanceof ValueType.Primitive) {
+            ValueType.Primitive primitive = (ValueType.Primitive) type;
+            switch (primitive.getKind()) {
+                case BOOLEAN:
+                    return false;
+                case BYTE:
+                    return (byte) 0;
+                case SHORT:
+                    return (short) 0;
+                case INTEGER:
+                    return 0;
+                case CHARACTER:
+                    return '\0';
+                case LONG:
+                    return 0L;
+                case FLOAT:
+                    return 0F;
+                case DOUBLE:
+                    return 0.0;
+            }
+        }
+        return null;
+    }
+
     private void generateForwardClassStructure(ClassHolder cls) {
         if (isSystemClass(cls)) {
             return;
@@ -418,6 +456,7 @@ public class ClassGenerator {
         vtableWriter.print(".").print(classFieldName("tag")).print(" = ").print(String.valueOf(tag)).println(",");
         vtableWriter.print(".").print(classFieldName("canary")).println(" = 0,");
         vtableWriter.print(".").print(classFieldName("name")).println(" = stringPool + " + nameRef + ",");
+        vtableWriter.print(".").print(classFieldName("simpleName")).println(" = NULL,");
         vtableWriter.print(".").print(classFieldName("arrayType")).println(" = " + arrayTypeExpr + ",");
         vtableWriter.print(".").print(classFieldName("itemType")).println(" = " + itemTypeExpr + ",");
         vtableWriter.print(".").print(classFieldName("isSupertypeOf")).println(" = &" + superTypeFunction + ",");
diff --git a/core/src/main/java/org/teavm/backend/c/generate/CodeGenerationVisitor.java b/core/src/main/java/org/teavm/backend/c/generate/CodeGenerationVisitor.java
index 42d972c3e..9d8c3314d 100644
--- a/core/src/main/java/org/teavm/backend/c/generate/CodeGenerationVisitor.java
+++ b/core/src/main/java/org/teavm/backend/c/generate/CodeGenerationVisitor.java
@@ -266,69 +266,7 @@ public class CodeGenerationVisitor implements ExprVisitor, StatementVisitor {
 
     @Override
     public void visit(ConstantExpr expr) {
-        Object value = expr.getValue();
-
-        if (value == null) {
-            writer.print("NULL");
-        } else if (value instanceof String) {
-            int index = context.getStringPool().getStringIndex((String) value);
-            writer.print("(stringPool + " + index + ")");
-        } else if (value instanceof Integer) {
-            int i = (Integer) value;
-            long v = i;
-            if (i < 0) {
-                writer.print("-");
-                v = -i;
-            }
-            writer.print("INT32_C(");
-            writeLongConstant(v);
-            writer.print(")");
-        } else if (value instanceof Long) {
-            long v = (Long) value;
-            if (v < 0) {
-                writer.print("-");
-                v = -v;
-            }
-            writer.print("INT64_C(");
-            writeLongConstant(v);
-            writer.print(")");
-        } else if (value instanceof Float) {
-            float f = (Float) value;
-            if (Float.isInfinite(f)) {
-                if (f < 0) {
-                    writer.print("-");
-                }
-                writer.print("INFINITY");
-            } else if (Float.isNaN(f)) {
-                writer.print("NAN");
-            } else {
-                writer.print(f + "f");
-            }
-        } else if (value instanceof Double) {
-            double d = (Double) value;
-            if (Double.isInfinite(d)) {
-                if (d < 0) {
-                    writer.print("-");
-                }
-                writer.print("INFINITY");
-            } else if (Double.isNaN(d)) {
-                writer.print("NAN");
-            } else {
-                writer.print(value.toString());
-            }
-        } else if (value instanceof Boolean) {
-            writer.print((Boolean) value ? "1" : "0");
-        } else if (value instanceof ValueType) {
-            writer.print("&").print(names.forClassInstance((ValueType) value));
-        }
-    }
-
-    private void writeLongConstant(long v) {
-        if (v == Long.MIN_VALUE) {
-            writer.print("0x8000000000000000");
-            return;
-        }
-        writer.print(String.valueOf(v));
+        CodeGeneratorUtil.writeValue(writer, context, expr.getValue());
     }
 
     @Override
diff --git a/core/src/main/java/org/teavm/backend/c/generate/CodeGeneratorUtil.java b/core/src/main/java/org/teavm/backend/c/generate/CodeGeneratorUtil.java
new file mode 100644
index 000000000..8054c70a2
--- /dev/null
+++ b/core/src/main/java/org/teavm/backend/c/generate/CodeGeneratorUtil.java
@@ -0,0 +1,88 @@
+/*
+ *  Copyright 2018 Alexey Andreev.
+ *
+ *  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.
+ */
+package org.teavm.backend.c.generate;
+
+import org.teavm.model.ValueType;
+
+public final class CodeGeneratorUtil {
+    private CodeGeneratorUtil() {
+    }
+
+    public static void writeValue(CodeWriter writer, GenerationContext context, Object value) {
+        if (value == null) {
+            writer.print("NULL");
+        } else if (value instanceof String) {
+            int index = context.getStringPool().getStringIndex((String) value);
+            writer.print("(stringPool + " + index + ")");
+        } else if (value instanceof Integer) {
+            int i = (Integer) value;
+            long v = i;
+            if (i < 0) {
+                writer.print("-");
+                v = -i;
+            }
+            writer.print("INT32_C(");
+            writeLongConstant(writer, v);
+            writer.print(")");
+        } else if (value instanceof Long) {
+            long v = (Long) value;
+            if (v < 0) {
+                writer.print("-");
+                v = -v;
+            }
+            writer.print("INT64_C(");
+            writeLongConstant(writer, v);
+            writer.print(")");
+        } else if (value instanceof Float) {
+            float f = (Float) value;
+            if (Float.isInfinite(f)) {
+                if (f < 0) {
+                    writer.print("-");
+                }
+                writer.print("INFINITY");
+            } else if (Float.isNaN(f)) {
+                writer.print("NAN");
+            } else {
+                writer.print(f + "f");
+            }
+        } else if (value instanceof Double) {
+            double d = (Double) value;
+            if (Double.isInfinite(d)) {
+                if (d < 0) {
+                    writer.print("-");
+                }
+                writer.print("INFINITY");
+            } else if (Double.isNaN(d)) {
+                writer.print("NAN");
+            } else {
+                writer.print(value.toString());
+            }
+        } else if (value instanceof Boolean) {
+            writer.print((Boolean) value ? "1" : "0");
+        } else if (value instanceof ValueType) {
+            writer.print("&").print(context.getNames().forClassInstance((ValueType) value));
+        }
+    }
+
+    private static void writeLongConstant(CodeWriter writer, long v) {
+        if (v == Long.MIN_VALUE) {
+            writer.print("0x8000000000000000");
+            return;
+        }
+        writer.print(String.valueOf(v));
+    }
+
+}
diff --git a/core/src/main/java/org/teavm/backend/c/intrinsic/PlatformClassMetadataIntrinsic.java b/core/src/main/java/org/teavm/backend/c/intrinsic/PlatformClassMetadataIntrinsic.java
index b65b81140..3d13450d2 100644
--- a/core/src/main/java/org/teavm/backend/c/intrinsic/PlatformClassMetadataIntrinsic.java
+++ b/core/src/main/java/org/teavm/backend/c/intrinsic/PlatformClassMetadataIntrinsic.java
@@ -22,10 +22,12 @@ import org.teavm.runtime.RuntimeClass;
 
 public class PlatformClassMetadataIntrinsic implements Intrinsic {
     private static final String PLATFORM_CLASS_METADATA = "org.teavm.platform.PlatformClassMetadata";
-    private static final FieldReference ARRAY_TYPE_FIELD = new FieldReference(
-            RuntimeClass.class.getName(), "arrayType");
+    private static final FieldReference ITEM_TYPE_FIELD = new FieldReference(
+            RuntimeClass.class.getName(), "itemType");
     private static final FieldReference SUPERCLASS_FIELD = new FieldReference(
             RuntimeClass.class.getName(), "parent");
+    private static final FieldReference NAME_FIELD = new FieldReference(
+            RuntimeClass.class.getName(), "name");
 
     @Override
     public boolean canHandle(MethodReference method) {
@@ -35,6 +37,7 @@ public class PlatformClassMetadataIntrinsic implements Intrinsic {
         switch (method.getName()) {
             case "getArrayItem":
             case "getSuperclass":
+            case "getName":
                 return true;
         }
         return false;
@@ -44,11 +47,14 @@ public class PlatformClassMetadataIntrinsic implements Intrinsic {
     public void apply(IntrinsicContext context, InvocationExpr invocation) {
         switch (invocation.getMethod().getName()) {
             case "getArrayItem":
-                printFieldAccess(context, invocation, ARRAY_TYPE_FIELD);
+                printFieldAccess(context, invocation, ITEM_TYPE_FIELD);
                 break;
             case "getSuperclass":
                 printFieldAccess(context, invocation, SUPERCLASS_FIELD);
                 break;
+            case "getName":
+                printFieldAccess(context, invocation, NAME_FIELD);
+                break;
         }
     }
 
diff --git a/platform/src/main/java/org/teavm/platform/Platform.java b/platform/src/main/java/org/teavm/platform/Platform.java
index 3b9944e6e..1b27a767a 100644
--- a/platform/src/main/java/org/teavm/platform/Platform.java
+++ b/platform/src/main/java/org/teavm/platform/Platform.java
@@ -222,28 +222,15 @@ public final class Platform {
         return (cls.flags & RuntimeClass.ENUM) != 0;
     }
 
-    @DelegateTo("getArrayItemLowLevel")
     @Unmanaged
     public static PlatformClass getArrayItem(PlatformClass cls) {
         return cls.getMetadata().getArrayItem();
     }
 
-    @SuppressWarnings("unused")
-    @Unmanaged
-    private static RuntimeClass getArrayItemLowLevel(RuntimeClass cls) {
-        return cls.itemType;
-    }
-
-    @DelegateTo("getNameLowLevel")
     public static String getName(PlatformClass cls) {
         return cls.getMetadata().getName();
     }
 
-    @Unmanaged
-    private static RuntimeObject getNameLowLevel(RuntimeClass cls) {
-        return cls.name;
-    }
-
     @JSBody(script = "return $rt_global;")
     private static native JSObject getGlobal();
 }