diff --git a/pom.xml b/pom.xml
index a604e166..42106d56 100644
--- a/pom.xml
+++ b/pom.xml
@@ -151,8 +151,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.2</version>
         <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
+          <source>11</source>
+          <target>11</target>
           <testSource>11</testSource>
           <testTarget>11</testTarget>
           <testCompilerArgument>-parameters</testCompilerArgument>
diff --git a/src/test/javassist/Bench.java b/src/test/javassist/Bench.java
index b7b8b27e..1892b383 100644
--- a/src/test/javassist/Bench.java
+++ b/src/test/javassist/Bench.java
@@ -5,9 +5,6 @@
 import javassist.compiler.*;
 
 public class Bench extends JvstTestRoot {
-    public Bench(String name) {
-        super(name);
-    }
 
     public void testProceed() throws Exception {
         CtClass cc = sloader.get("test.BenchProceed");
diff --git a/src/test/javassist/JvstTest.java b/src/test/javassist/JvstTest.java
index 3ed16827..ecbf91f7 100644
--- a/src/test/javassist/JvstTest.java
+++ b/src/test/javassist/JvstTest.java
@@ -20,9 +20,6 @@ public class JvstTest extends JvstTestRoot {
         java9 = javassist.bytecode.ClassFile.MAJOR_VERSION
                     >= javassist.bytecode.ClassFile.JAVA_9;
     }
-    public JvstTest(String name) {
-         super(name);
-    }
 
     public void testConfig() {
         // is the value of PATH correct?
diff --git a/src/test/javassist/JvstTest2.java b/src/test/javassist/JvstTest2.java
index 5d01961d..334282d5 100644
--- a/src/test/javassist/JvstTest2.java
+++ b/src/test/javassist/JvstTest2.java
@@ -14,9 +14,6 @@
 @SuppressWarnings({"rawtypes","unused"})
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class JvstTest2 extends JvstTestRoot {
-    public JvstTest2(String name) {
-         super(name);
-    }
 
     public void testInsertAt() throws Exception {
         CtClass cc = sloader.get("test2.InsertAt");
diff --git a/src/test/javassist/JvstTest3.java b/src/test/javassist/JvstTest3.java
index c065170c..2f9ffcd5 100644
--- a/src/test/javassist/JvstTest3.java
+++ b/src/test/javassist/JvstTest3.java
@@ -7,9 +7,6 @@
 
 @SuppressWarnings({"rawtypes","unchecked","unused"})
 public class JvstTest3 extends JvstTestRoot {
-    public JvstTest3(String name) {
-         super(name);
-    }
 
     public void testAnnotation() throws Exception {
         CtClass cc = sloader.get("test3.AnnoTest");
diff --git a/src/test/javassist/JvstTest4.java b/src/test/javassist/JvstTest4.java
index 259451b9..e00c332a 100644
--- a/src/test/javassist/JvstTest4.java
+++ b/src/test/javassist/JvstTest4.java
@@ -16,9 +16,6 @@
 @SuppressWarnings({"rawtypes","unchecked","unused"})
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class JvstTest4 extends JvstTestRoot {
-    public JvstTest4(String name) {
-        super(name);
-    }
 
     public void testInsertLocalVars() throws Exception {
         CtClass cc = sloader.get("test4.LocalVars");
diff --git a/src/test/javassist/JvstTest5.java b/src/test/javassist/JvstTest5.java
index 561181c3..dce27ab1 100644
--- a/src/test/javassist/JvstTest5.java
+++ b/src/test/javassist/JvstTest5.java
@@ -25,9 +25,6 @@
 
 @SuppressWarnings({"rawtypes","unchecked","unused"})
 public class JvstTest5 extends JvstTestRoot {
-    public JvstTest5(String name) {
-        super(name);
-    }
 
     public void testDollarClassInStaticMethod() throws Exception {
         CtClass cc = sloader.makeClass("test5.DollarClass");
diff --git a/src/test/javassist/JvstTestRoot.java b/src/test/javassist/JvstTestRoot.java
index 69f4a6ae..923af666 100644
--- a/src/test/javassist/JvstTestRoot.java
+++ b/src/test/javassist/JvstTestRoot.java
@@ -13,10 +13,6 @@ public class JvstTestRoot extends TestCase {
     ClassPool sloader, dloader;
     Loader cloader;
 
-    public JvstTestRoot(String name) {
-        super(name);
-    }
-
     protected void print(String msg) {
         System.out.println(msg);
     }
diff --git a/src/test/javassist/bytecode/InsertGap0.java b/src/test/javassist/bytecode/InsertGap0.java
index 425f12d7..9e94e593 100644
--- a/src/test/javassist/bytecode/InsertGap0.java
+++ b/src/test/javassist/bytecode/InsertGap0.java
@@ -159,9 +159,6 @@ public int run2(int x) {
 
 @SuppressWarnings({"rawtypes","unchecked","unused"})
 public final class InsertGap0 extends JvstTestRoot {
-    public InsertGap0(String name) {
-        super(name);
-    }
 
     public void testExample() throws Throwable {
         ClassPool pool = ClassPool.getDefault();