diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/TClassLoader.java b/classlib/src/main/java/org/teavm/classlib/java/lang/TClassLoader.java
index be243a747..e23b66e67 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/lang/TClassLoader.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/TClassLoader.java
@@ -53,6 +53,10 @@ public abstract class TClassLoader extends TObject {
         return dataString == null ? null : new ByteArrayInputStream(Base64.decode(dataString));
     }
 
+    public static InputStream getSystemResourceAsStream(String name) {
+        return getSystemClassLoader().getResourceAsStream(name);
+    }
+
     @JSBody(params = "resource", script = "return resource !== null && resource !== void 0 ? resource : null;")
     private static native String resourceToString(JSObject resource);
 
diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/ref/TSoftReference.java b/classlib/src/main/java/org/teavm/classlib/java/lang/ref/TSoftReference.java
new file mode 100644
index 000000000..5b20eef83
--- /dev/null
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/ref/TSoftReference.java
@@ -0,0 +1,38 @@
+/*
+ *  Copyright 2017 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.ref;
+
+public class TSoftReference<T> extends TReference<T> {
+    private T value;
+
+    public TSoftReference(T value) {
+        this.value = value;
+    }
+
+    public TSoftReference(T value, @SuppressWarnings("unused") TReferenceQueue<T> queue) {
+        this.value = value;
+    }
+
+    @Override
+    public T get() {
+        return value;
+    }
+
+    @Override
+    public void clear() {
+        value = null;
+    }
+}
diff --git a/classlib/src/main/java/org/teavm/classlib/java/lang/ref/TWeakReference.java b/classlib/src/main/java/org/teavm/classlib/java/lang/ref/TWeakReference.java
index b3385efad..51bd9d723 100644
--- a/classlib/src/main/java/org/teavm/classlib/java/lang/ref/TWeakReference.java
+++ b/classlib/src/main/java/org/teavm/classlib/java/lang/ref/TWeakReference.java
@@ -15,11 +15,6 @@
  */
 package org.teavm.classlib.java.lang.ref;
 
-/**
- *
- * @author Alexey Andreev
- * @param <T>
- */
 public class TWeakReference<T> extends TReference<T> {
     private T value;
 
diff --git a/tests/src/test/java/org/teavm/classlib/java/util/ResourceBundleTest.java b/tests/src/test/java/org/teavm/classlib/java/util/ResourceBundleTest.java
index 7aa2dc376..170fdecb3 100644
--- a/tests/src/test/java/org/teavm/classlib/java/util/ResourceBundleTest.java
+++ b/tests/src/test/java/org/teavm/classlib/java/util/ResourceBundleTest.java
@@ -84,7 +84,7 @@ public class ResourceBundleTest {
             // would be loaded.
             ResourceBundle.getBundle("org.apache.harmony.luni.tests.java.util.ResourceBundleTest$GetBundleTest");
         }
-    };
+    }
 
     @Test
     public void getBundleLjava_lang_String() {
@@ -95,10 +95,4 @@ public class ResourceBundleTest {
             // expected
         }
     }
-
-	protected void setUp() {
-	}
-
-	protected void tearDown() {
-	}
 }
diff --git a/tools/core/src/main/java/org/teavm/tooling/TeaVMTool.java b/tools/core/src/main/java/org/teavm/tooling/TeaVMTool.java
index 2a0dff753..53f90c51f 100644
--- a/tools/core/src/main/java/org/teavm/tooling/TeaVMTool.java
+++ b/tools/core/src/main/java/org/teavm/tooling/TeaVMTool.java
@@ -518,6 +518,10 @@ public class TeaVMTool implements BaseTeaVMTool {
     }
 
     private void printStats() {
+        if (vm == null || vm.getWrittenClasses() == null) {
+            return;
+        }
+
         int classCount = vm.getWrittenClasses().getClassNames().size();
         int methodCount = 0;
         for (String className : vm.getWrittenClasses().getClassNames()) {