diff --git a/compiler/testData/codegen/regressions/kt434.jet b/compiler/testData/codegen/regressions/kt434.jet
new file mode 100644
index 00000000000..e48463642b9
--- /dev/null
+++ b/compiler/testData/codegen/regressions/kt434.jet
@@ -0,0 +1,13 @@
+import java.net.*
+
+fun String.decodeURI(encoding : String) : String? =
+    try {
+        URLDecoder.decode(this, encoding)
+    }
+    catch (e : Throwable) {
+        null
+    }
+
+fun box() : String {
+    return if("hhh".decodeURI("lala") == null) "OK" else "fail"
+}
\ No newline at end of file
diff --git a/compiler/tests/org/jetbrains/jet/JetLiteFixture.java b/compiler/tests/org/jetbrains/jet/JetLiteFixture.java
index 1719cbf181d..f975ba79778 100644
--- a/compiler/tests/org/jetbrains/jet/JetLiteFixture.java
+++ b/compiler/tests/org/jetbrains/jet/JetLiteFixture.java
@@ -14,6 +14,7 @@ import com.intellij.testFramework.LightVirtualFile;
 import com.intellij.testFramework.TestDataFile;
 import com.intellij.testFramework.UsefulTestCase;
 import org.jetbrains.annotations.NonNls;
+import org.jetbrains.jet.compiler.CompileEnvironment;
 import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.plugin.JetLanguage;
 
@@ -48,12 +49,22 @@ public abstract class JetLiteFixture extends UsefulTestCase {
     @Override
     protected void setUp() throws Exception {
         super.setUp();
+        createEnvironmentWithMockJdk();
+    }
+
+    protected void createEnvironmentWithMockJdk() {
         myEnvironment = new JetCoreEnvironment(getTestRootDisposable());
         final File rtJar = new File(JetTestCaseBuilder.getHomeDirectory(), "compiler/testData/mockJDK-1.7/jre/lib/rt.jar");
         myEnvironment.addToClasspath(rtJar);
         myEnvironment.addToClasspath(new File(JetTestCaseBuilder.getHomeDirectory(), "compiler/testData/mockJDK-1.7/jre/lib/annotations.jar"));
     }
 
+    protected void createEnvironmentWithFullJdk() {
+        myEnvironment = new JetCoreEnvironment(getTestRootDisposable());
+        final File rtJar = CompileEnvironment.findRtJar(true);
+        myEnvironment.addToClasspath(rtJar);
+    }
+
     @Override
     protected void tearDown() throws Exception {
         myFile = null;
diff --git a/compiler/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java b/compiler/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
index f8abdb701b2..11914b419ac 100644
--- a/compiler/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
+++ b/compiler/tests/org/jetbrains/jet/codegen/ControlStructuresTest.java
@@ -216,4 +216,9 @@ public class ControlStructuresTest extends CodegenTestCase {
     public void testKt513() throws Exception {
         blackBoxFile("regressions/kt513.jet");
     }
+
+    public void testKt434() throws Exception {
+        createEnvironmentWithFullJdk();
+        blackBoxFile("regressions/kt434.jet");
+    }
 }