diff --git a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveImportsRule.java b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveImportsRule.java
index 06b9b87bad..690236d3e3 100644
--- a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveImportsRule.java
+++ b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveImportsRule.java
@@ -30,6 +30,6 @@ public class ExcessiveImportsRule extends AbstractJavaCounterCheckRule<ASTCompil
 
     @Override
     protected boolean isViolation(ASTCompilationUnit node, int reportLevel) {
-        return node.findChildrenOfType(ASTImportDeclaration.class).size() >= reportLevel;
+        return node.children(ASTImportDeclaration.class).count() >= reportLevel;
     }
 }
diff --git a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveParameterListRule.java b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveParameterListRule.java
index 991cec752f..b55d8c147c 100644
--- a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveParameterListRule.java
+++ b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveParameterListRule.java
@@ -7,6 +7,7 @@ package net.sourceforge.pmd.lang.java.rule.design;
 import net.sourceforge.pmd.lang.ast.Node;
 import net.sourceforge.pmd.lang.java.ast.ASTConstructorDeclaration;
 import net.sourceforge.pmd.lang.java.ast.ASTFormalParameters;
+import net.sourceforge.pmd.lang.java.ast.AccessNode.Visibility;
 import net.sourceforge.pmd.lang.java.rule.internal.AbstractJavaCounterCheckRule;
 
 /**
@@ -33,8 +34,7 @@ public class ExcessiveParameterListRule extends AbstractJavaCounterCheckRule<AST
     private boolean areParametersOfPrivateConstructor(ASTFormalParameters params) {
         Node parent = params.getParent();
         if (parent instanceof ASTConstructorDeclaration) {
-            ASTConstructorDeclaration constructor = (ASTConstructorDeclaration) parent;
-            return constructor.isPrivate();
+            return ((ASTConstructorDeclaration) parent).getVisibility() == Visibility.V_PRIVATE;
         }
         return false;
     }
diff --git a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveClassLengthTest.java b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveClassLengthTest.java
index f2d4889f62..d2a63dea3b 100644
--- a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveClassLengthTest.java
+++ b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveClassLengthTest.java
@@ -6,7 +6,6 @@ package net.sourceforge.pmd.lang.java.rule.design;
 
 import net.sourceforge.pmd.testframework.PmdRuleTst;
 
-@org.junit.Ignore("Rule has not been updated yet")
 public class ExcessiveClassLengthTest extends PmdRuleTst {
     // no additional unit tests
 }
diff --git a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveImportsTest.java b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveImportsTest.java
index 7d178ad0f2..437c46ab38 100644
--- a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveImportsTest.java
+++ b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveImportsTest.java
@@ -6,7 +6,6 @@ package net.sourceforge.pmd.lang.java.rule.design;
 
 import net.sourceforge.pmd.testframework.PmdRuleTst;
 
-@org.junit.Ignore("Rule has not been updated yet")
 public class ExcessiveImportsTest extends PmdRuleTst {
     // no additional unit tests
 }
diff --git a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveMethodLengthTest.java b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveMethodLengthTest.java
index cf297976d8..75dc63b795 100644
--- a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveMethodLengthTest.java
+++ b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveMethodLengthTest.java
@@ -6,7 +6,6 @@ package net.sourceforge.pmd.lang.java.rule.design;
 
 import net.sourceforge.pmd.testframework.PmdRuleTst;
 
-@org.junit.Ignore("Rule has not been updated yet")
 public class ExcessiveMethodLengthTest extends PmdRuleTst {
     // no additional unit tests
 }
diff --git a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveParameterListTest.java b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveParameterListTest.java
index 39778d08e3..4903e4d782 100644
--- a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveParameterListTest.java
+++ b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessiveParameterListTest.java
@@ -6,7 +6,6 @@ package net.sourceforge.pmd.lang.java.rule.design;
 
 import net.sourceforge.pmd.testframework.PmdRuleTst;
 
-@org.junit.Ignore("Rule has not been updated yet")
 public class ExcessiveParameterListTest extends PmdRuleTst {
     // no additional unit tests
 }
diff --git a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessivePublicCountTest.java b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessivePublicCountTest.java
index 18fbba672d..9477056414 100644
--- a/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessivePublicCountTest.java
+++ b/pmd-java/src/test/java/net/sourceforge/pmd/lang/java/rule/design/ExcessivePublicCountTest.java
@@ -6,7 +6,6 @@ package net.sourceforge.pmd.lang.java.rule.design;
 
 import net.sourceforge.pmd.testframework.PmdRuleTst;
 
-@org.junit.Ignore("Rule has not been updated yet")
 public class ExcessivePublicCountTest extends PmdRuleTst {
     // no additional unit tests
 }