diff --git a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/optimizations/RedundantFieldInitializerRule.java b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/optimizations/RedundantFieldInitializerRule.java
index 3cee0a6bd4..75a728a1d6 100644
--- a/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/optimizations/RedundantFieldInitializerRule.java
+++ b/pmd-java/src/main/java/net/sourceforge/pmd/lang/java/rule/optimizations/RedundantFieldInitializerRule.java
@@ -95,9 +95,9 @@ public class RedundantFieldInitializerRule extends AbstractJavaRule {
                                     // remove the ending "f" or "F" for float
                                     // values
                                     s = s.substring(0, s.length() - 1);
-                                    value = Float.valueOf(s);
+                                    value = Float.valueOf(s.replaceAll("_", ""));
                                 } else if (literal.isDoubleLiteral()) {
-                                    value = Double.valueOf(literal.getImage());
+                                    value = Double.valueOf(literal.getImage().replaceAll("_", ""));
                                 } else if (literal.isCharLiteral()) {
                                     value = (int) literal.getImage().charAt(1);
                                 }
diff --git a/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/optimizations/xml/RedundantFieldInitializer.xml b/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/optimizations/xml/RedundantFieldInitializer.xml
index 5a72358454..3722c2b586 100644
--- a/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/optimizations/xml/RedundantFieldInitializer.xml
+++ b/pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/optimizations/xml/RedundantFieldInitializer.xml
@@ -1322,6 +1322,89 @@ public class SomeClass {
         <code><![CDATA[
 public @interface SomeAnnotation {
     int CONSTANT = 0;
+}
+        ]]></code>
+    </test-code>
+
+    <test-code>
+        <description>java7 numeric literals</description>
+        <expected-problems>4</expected-problems>
+        <expected-linenumbers>8,21,31,47</expected-linenumbers>
+        <code><![CDATA[
+public class Test {
+  int i1 = 0b00011110;
+  int i2 = 0B00011110;
+  int i3 = 0xA;
+  int i4 = 0x1___A_F;
+  int i5 = 0b1;
+  int i6 = 0b1___1_0;
+  int i7 = 0;
+  int i8 = 02;
+  int i9 = 0_123;
+  int i10 = 1;
+  int i11 = 1___3;
+  int i12 = 1_43_43598_7;
+
+  long l1 = 0b00011110L;
+  long l2 = 0B00011110l;
+  long l3 = 0xAL;
+  long l4 = 0x1___A_FL;
+  long l5 = 0b1L;
+  long l6 = 0b1___1_0L;
+  long l7 = 0l;
+  long l8 = 02L;
+  long l9 = 0_123l;
+  long l10 = 1l;
+  long l11 = 1___3l;
+  long l12 = 1_43_43598_7L;
+  long l13 = 1_43_43598_7;
+  
+  float f1 = .1f;
+  float f2 = 1.f;
+  float f3 = 0f;
+  float f4 = 1e0F;
+  float f5 = 1e0f;
+  float f6 = 12.345F;
+  float f7 = .5____2_1f;
+  float f8 = 1__42__3.f;
+  float f9 = 0__2_4__324f;
+  float f10 = 1_34e0F;
+  float f11 = 1__1_2e0f;
+  float f12 = 2_1___2.3__4_5F;
+  float f13 = 1_34e0__4__3f;
+  float f14 = 1__1_2e00__000_4f;
+  float f15 = 2_1___2.3__4_5e00______0_5F;
+  
+  double d1 = .1d;
+  double d2 = 1.D;
+  double d3 = 0d;
+  double d4 = 1e0D;
+  double d5 = 1e0d;
+  double d6 = 12.345D;
+  double d7 = .5____2_1d;
+  double d8 = 1__42__3.D;
+  double d9 = 0__2_4__324d;
+  double d10 = 1_34e0d;
+  double d11 = 1__1_2e0d;
+  double d12 = 2_1___2.3__4_5D;
+  double d13 = 1_34e0__4__3d;
+  double d14 = 1__1_2e00__000_4d;
+  double d15 = 2_1___2.3__4_5e00______0_5D;
+  double d16 = 0.12___34;
+  
+  float hf1 = 0x.1___AFp1;
+  float hf2 = 0x.1___AFp0__0__0f;
+  float hf3 = 0x2__3_34.4___AFP00_00f;
+  
+  double hd1 = 0x.1___AFp1;
+  double hd2 = 0x.1___AFp0__0__0d;
+  double hd3 = 0x2__3_34.4___AFP00_00d;
+  
+  int doc1 = 1234_5678;
+  long doc2 = 1_2_3_4__5_6_7_8L;
+  int doc3 = 0b0001_0010_0100_1000;
+  double doc4 = 3.141_592_653_589_793d;
+  double doc5 = 0x1.ffff_ffff_ffff_fP1_023;
 }
         ]]></code>
     </test-code>