Java 1.5 to 1.8 back-porting.

Author: dghgit

core/src/test/java/org/bouncycastle/pqc/crypto/test/MLDSATest.java

@@ -456,7 +456,7 @@ public void testSigVerCombinedVectorSet()
             {
                 continue;
             }
-            if (line.isEmpty())
+            if (line.length() == 0)
             {
                 if (!buf.isEmpty())
                 {

pg/src/test/java/org/bouncycastle/bcpg/test/SignaturePacketTest.java

@@ -147,7 +147,6 @@ private void testParseUnknownVersionSignaturePacket()
                 "UnsupportedPacketVersionException",
                 new TestExceptionOperation()
                 {
-                    @Override
                     public void operation()
                             throws Exception
                     {

pg/src/test/java/org/bouncycastle/openpgp/test/PGPPaddingTest.java

@@ -73,7 +73,6 @@ private void negativePaddingLengthThrows()
     {
         testException(null, "IllegalArgumentException", new TestExceptionOperation()
         {
-            @Override
             public void operation()
                 throws Exception
             {
@@ -86,7 +85,6 @@ private void zeroPaddingLengthThrows()
     {
         testException(null, "IllegalArgumentException", new TestExceptionOperation()
         {
-            @Override
             public void operation()
                 throws Exception
             {