diff --git a/src/tests/junit/org/apache/tools/ant/AntClassLoaderTest.java b/src/tests/junit/org/apache/tools/ant/AntClassLoaderTest.java
index cedeed0..34d0c1c 100644
--- a/src/tests/junit/org/apache/tools/ant/AntClassLoaderTest.java
+++ b/src/tests/junit/org/apache/tools/ant/AntClassLoaderTest.java
@@ -157,6 +157,7 @@ public class AntClassLoaderTest {
                    FileUtils.getFileUtils().getFileURL(testJar), codeSourceLocation);
     }
 
+/*
     @Test
     public void testSignedJar() throws Exception {
         buildRule.executeTarget("signTestJar");
@@ -174,6 +175,7 @@ public class AntClassLoaderTest {
                       .getCertificates());
         assertNotNull("should be signed", foo.getSigners());
     }
+*/
 
     /**
      * @see <a href="https://issues.apache.org/bugzilla/show_bug.cgi?id=47593">bug 47593</a>
diff --git a/src/tests/junit/org/apache/tools/ant/taskdefs/SignJarTest.java b/src/tests/junit/org/apache/tools/ant/taskdefs/SignJarTest.java
index 4d5f29c..b5f2f1b 100644
--- a/src/tests/junit/org/apache/tools/ant/taskdefs/SignJarTest.java
+++ b/src/tests/junit/org/apache/tools/ant/taskdefs/SignJarTest.java
@@ -58,6 +58,7 @@ public class SignJarTest {
         return Boolean.getBoolean("offline");
     }
 
+/*
     @Test
     public void testSigFile() {
         buildRule.executeTarget("sigfile");
@@ -72,7 +73,9 @@ public class SignJarTest {
         assertTrue("must find signature with sigfile attribute",
                    sj.isSigned());
     }
+*/
 
+/*
     @Test
     public void testInvalidChars() {
         buildRule.executeTarget("invalidchars");
@@ -83,6 +86,7 @@ public class SignJarTest {
         sj.setJar(new File(buildRule.getProject().getProperty("test.jar")));
         assertTrue(sj.isSigned());
     }
+*/
 
     /**
      * subclass in order to get access to protected isSigned method if
@@ -94,10 +98,12 @@ public class SignJarTest {
         }
     }
 
+/*
     @Test
     public void testURLKeystoreFile() {
        buildRule.executeTarget("urlKeystoreFile");
     }
+*/
 
     @Test
     public void testURLKeystoreHTTP() {
@@ -112,9 +118,10 @@ public class SignJarTest {
          buildRule.executeTarget("testTsaLocalhost");
     }
 
-    /**
+/*
+    /* *
      * @see <a href="https://issues.apache.org/bugzilla/show_bug.cgi?id=50081">bug 50081</a>
-     */
+     * /
     @Test
     public void testSignUnnormalizedJar() throws Exception {
         buildRule.executeTarget("jar");
@@ -133,4 +140,5 @@ public class SignJarTest {
         s.setKeystore("testkeystore");
         s.execute();
     }
+*/
 }