diff --git a/pom.xml b/pom.xml
index 55bb75a..f3cd9c8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -110,6 +110,12 @@
             <version>${netbeans.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>commons-lang</groupId>
+            <artifactId>commons-lang</artifactId>
+            <version>2.6</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -220,6 +226,7 @@
 &lt;li&gt;"Remove "public abstract" modifiers from method declarations within interfaces" (since 1.1)&lt;/li&gt;
 &lt;li&gt;"Change modifiers" (since 1.2)&lt;/li&gt;
 &lt;li&gt;"Convert char to string and back" (since 1.2)&lt;/li&gt;
+&lt;li&gt;"Convert to StringUtils.isBlank()/StringUtils.isNotBlank()/StringUtils.isEmpty()" (since 1.2)&lt;/li&gt;
 &lt;/ul&gt;
 
 &lt;h2&gt;Example:&lt;/h2&gt;
@@ -232,6 +239,7 @@
 &lt;li&gt;[&lt;a href="https://github.com/markiewb/nb-additional-hints/issues/24"&gt;New Hint&lt;/a&gt;]: Remove public/abstract/final modifiers from field declarations within interfaces&lt;/li&gt;
 &lt;li&gt;[&lt;a href="https://github.com/markiewb/nb-additional-hints/issues/9"&gt;New Hint&lt;/a&gt;]: Convert from char and string and back&lt;/li&gt;
 &lt;li&gt;[&lt;a href="https://github.com/markiewb/nb-additional-hints/issues/10"&gt;New Hint&lt;/a&gt;]: Convert number in literal to number and back&lt;/li&gt;
+&lt;li&gt;[&lt;a href="https://github.com/markiewb/nb-additional-hints/issues/12"&gt;New Hint&lt;/a&gt;]: Convert to StringUtils.isBlank()/StringUtils.isNotBlank()/StringUtils.isEmpty()&lt;/li&gt;
 &lt;li&gt;[&lt;a href="https://github.com/markiewb/nb-additional-hints/issues/29"&gt;Updated Hint&lt;/a&gt;]: "Convert to assertTrue/assertFalse" now supports junit.framework.Assert too&lt;/li&gt;
 &lt;li&gt;[&lt;a href="https://github.com/markiewb/nb-additional-hints/issues/20"&gt;Updated Hint&lt;/a&gt;]: "Replace +..." hints can now be configured&lt;/li&gt;
 &lt;/ul&gt;
diff --git a/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToBlankFix.java b/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToBlankFix.java
new file mode 100644
index 0000000..d5458ff
--- /dev/null
+++ b/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToBlankFix.java
@@ -0,0 +1,36 @@
+package de.markiewb.netbeans.plugins.hints.apache.commons;
+
+import org.netbeans.spi.editor.hints.ErrorDescription;
+import org.netbeans.spi.editor.hints.Fix;
+import org.netbeans.spi.editor.hints.Severity;
+import org.netbeans.spi.java.hints.ConstraintVariableType;
+import static org.netbeans.spi.java.hints.ErrorDescriptionFactory.forName;
+import org.netbeans.spi.java.hints.Hint;
+import org.netbeans.spi.java.hints.HintContext;
+import static org.netbeans.spi.java.hints.JavaFixUtilities.rewriteFix;
+import org.netbeans.spi.java.hints.TriggerPattern;
+import org.netbeans.spi.java.hints.TriggerPatterns;
+import org.openide.util.NbBundle.Messages;
+
+@Messages({
+    "ERR_ToCommonsIsBlank=Convert to StringUtils.isBlank()",
+    "DN_ToCommonsIsBlank=Convert to StringUtils.isBlank()",
+    "DESC_ToCommonsIsBlank=Converts several patterns to use <tt>org.apache.commons.lang.StringUtils.isBlank()</tt>. For example <tt>$v != null && $v.trim().isEmpty()</tt>.<p>Provided by <a href=\"https://github.com/markiewb/nb-additional-hints\">nb-additional-hints</a> plugin</p>",})
+public class ToBlankFix {
+
+    @Hint(displayName = "#DN_ToCommonsIsBlank", description = "#DESC_ToCommonsIsBlank", category = "suggestions", hintKind = Hint.Kind.INSPECTION, severity = Severity.HINT)
+    @TriggerPatterns(
+            {
+                @TriggerPattern(value = "$v == null || $v.trim().length() == 0", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+                @TriggerPattern(value = "$v == null || $v.trim().isEmpty()", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+                @TriggerPattern(value = "$v != null && $v.trim().length() == 0", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+                @TriggerPattern(value = "$v != null && $v.trim().isEmpty()", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+            }
+    )
+    public static ErrorDescription hint(HintContext ctx) {
+
+        Fix fix = rewriteFix(ctx, Bundle.ERR_ToCommonsIsBlank(), ctx.getPath(), "org.apache.commons.lang.StringUtils.isBlank($v)");
+        return forName(ctx, ctx.getPath(), Bundle.ERR_ToCommonsIsBlank(), fix);
+    }
+
+}
diff --git a/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToEmptyFix.java b/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToEmptyFix.java
new file mode 100644
index 0000000..d9a6256
--- /dev/null
+++ b/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToEmptyFix.java
@@ -0,0 +1,36 @@
+package de.markiewb.netbeans.plugins.hints.apache.commons;
+
+import org.netbeans.spi.editor.hints.ErrorDescription;
+import org.netbeans.spi.editor.hints.Fix;
+import org.netbeans.spi.editor.hints.Severity;
+import org.netbeans.spi.java.hints.ConstraintVariableType;
+import static org.netbeans.spi.java.hints.ErrorDescriptionFactory.forName;
+import org.netbeans.spi.java.hints.Hint;
+import org.netbeans.spi.java.hints.HintContext;
+import static org.netbeans.spi.java.hints.JavaFixUtilities.rewriteFix;
+import org.netbeans.spi.java.hints.TriggerPattern;
+import org.netbeans.spi.java.hints.TriggerPatterns;
+import org.openide.util.NbBundle.Messages;
+
+@Messages({
+    "ERR_ToCommonsIsEmpty=Convert to StringUtils.isEmpty()",
+    "DN_ToCommonsIsEmpty=Convert to StringUtils.isEmpty()",
+    "DESC_ToCommonsIsEmpty=Converts several patterns to use <tt>org.apache.commons.lang.StringUtils.isEmpty()</tt>. For example <tt>$v == null || $v.length() == 0</tt>.<p>Provided by <a href=\"https://github.com/markiewb/nb-additional-hints\">nb-additional-hints</a> plugin</p>",})
+public class ToEmptyFix {
+
+    @Hint(displayName = "#DN_ToCommonsIsEmpty", description = "#DESC_ToCommonsIsEmpty", category = "suggestions", hintKind = Hint.Kind.INSPECTION, severity = Severity.HINT)
+    @TriggerPatterns(
+            {
+                @TriggerPattern(value = "$v == null || $v.length() == 0", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+                @TriggerPattern(value = "$v == null || $v.isEmpty()", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+                @TriggerPattern(value = "$v != null && $v.isEmpty()", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+                @TriggerPattern(value = "$v != null && $v.length() == 0", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+            }
+    )
+    public static ErrorDescription hint(HintContext ctx) {
+
+        Fix fix = rewriteFix(ctx, Bundle.ERR_ToCommonsIsEmpty(), ctx.getPath(), "org.apache.commons.lang.StringUtils.isEmpty($v)");
+        return forName(ctx, ctx.getPath(), Bundle.ERR_ToCommonsIsEmpty(), fix);
+    }
+
+}
diff --git a/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToNotBlankFix.java b/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToNotBlankFix.java
new file mode 100644
index 0000000..1f3eea4
--- /dev/null
+++ b/src/main/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToNotBlankFix.java
@@ -0,0 +1,35 @@
+package de.markiewb.netbeans.plugins.hints.apache.commons;
+
+import de.markiewb.netbeans.plugins.hints.common.StringUtils;
+import org.netbeans.spi.editor.hints.ErrorDescription;
+import org.netbeans.spi.editor.hints.Fix;
+import org.netbeans.spi.editor.hints.Severity;
+import org.netbeans.spi.java.hints.ConstraintVariableType;
+import static org.netbeans.spi.java.hints.ErrorDescriptionFactory.forName;
+import org.netbeans.spi.java.hints.Hint;
+import org.netbeans.spi.java.hints.HintContext;
+import static org.netbeans.spi.java.hints.JavaFixUtilities.rewriteFix;
+import org.netbeans.spi.java.hints.TriggerPattern;
+import org.netbeans.spi.java.hints.TriggerPatterns;
+import org.openide.util.NbBundle.Messages;
+
+@Messages({
+    "ERR_ToCommonsIsNotBlank=Convert to StringUtils.isNotBlank()",
+    "DN_ToCommonsIsNotBlank=Convert to StringUtils.isNotBlank()",
+    "DESC_ToCommonsIsNotBlank=Converts several patterns to use <tt>org.apache.commons.lang.StringUtils.isNotBlank()</tt>. For example <tt>$v != null && !$v.trim().isEmpty()</tt>.<p>Provided by <a href=\"https://github.com/markiewb/nb-additional-hints\">nb-additional-hints</a> plugin</p>",})
+public class ToNotBlankFix {
+
+    @Hint(displayName = "#DN_ToCommonsIsNotBlank", description = "#DESC_ToCommonsIsNotBlank", category = "suggestions", hintKind = Hint.Kind.INSPECTION, severity = Severity.HINT)
+    @TriggerPatterns(
+            {
+                @TriggerPattern(value = "$v != null && $v.trim().length() > 0", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+                @TriggerPattern(value = "$v != null && !$v.trim().isEmpty()", constraints = @ConstraintVariableType(variable = "$v", type = "java.lang.String")),
+            }
+    )
+    public static ErrorDescription hint(HintContext ctx) {
+
+        Fix fix = rewriteFix(ctx, Bundle.ERR_ToCommonsIsNotBlank(), ctx.getPath(), "org.apache.commons.lang.StringUtils.isNotBlank($v)");
+        return forName(ctx, ctx.getPath(), Bundle.ERR_ToCommonsIsNotBlank(), fix);
+    }
+
+}
diff --git a/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsBlankFixTest.java b/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsBlankFixTest.java
new file mode 100644
index 0000000..91318fb
--- /dev/null
+++ b/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsBlankFixTest.java
@@ -0,0 +1,129 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package de.markiewb.netbeans.plugins.hints.apache.commons;
+
+import de.markiewb.netbeans.plugins.hints.tochar.ToStringFix;
+import org.apache.commons.lang.StringUtils;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import static org.junit.Assert.*;
+import org.netbeans.modules.java.hints.test.api.HintTest;
+import org.netbeans.spi.editor.hints.ErrorDescription;
+import org.netbeans.spi.java.hints.HintContext;
+import org.openide.filesystems.FileUtil;
+
+/**
+ *
+ * @author markiewb
+ */
+public class ToCommonsIsBlankFixTest {
+
+    @Test
+    public void testToIsBlank1() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s == null || s.trim().length() == 0;\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToBlankFix.class)
+                .findWarning("4:18-4:53:hint:" + Bundle.ERR_ToCommonsIsBlank())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isBlank(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+    @Test
+    public void testToIsBlank2() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s == null || s.trim().isEmpty();\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToBlankFix.class)
+                .findWarning("4:18-4:49:hint:" + Bundle.ERR_ToCommonsIsBlank())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isBlank(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+    @Test
+    public void testToIsBlank3() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s != null && s.trim().length() == 0;\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToBlankFix.class)
+                .findWarning("4:18-4:53:hint:" + Bundle.ERR_ToCommonsIsBlank())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isBlank(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+    
+    @Test
+    public void testToIsBlank4() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s != null && s.trim().isEmpty();\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToBlankFix.class)
+                .findWarning("4:18-4:49:hint:" + Bundle.ERR_ToCommonsIsBlank())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isBlank(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+
+}
diff --git a/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsEmptyFixTest.java b/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsEmptyFixTest.java
new file mode 100644
index 0000000..17aac37
--- /dev/null
+++ b/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsEmptyFixTest.java
@@ -0,0 +1,116 @@
+package de.markiewb.netbeans.plugins.hints.apache.commons;
+
+import org.apache.commons.lang.StringUtils;
+import org.junit.Test;
+import org.netbeans.modules.java.hints.test.api.HintTest;
+import org.openide.filesystems.FileUtil;
+
+/**
+ *
+ * @author markiewb
+ */
+public class ToCommonsIsEmptyFixTest {
+
+    @Test
+    public void testToIsEmpty1() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s == null || s.length() == 0;\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToEmptyFix.class)
+                .findWarning("4:18-4:46:hint:" + Bundle.ERR_ToCommonsIsEmpty())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isEmpty(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+    @Test
+    public void testToIsEmpty2() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s == null || s.isEmpty();\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToEmptyFix.class)
+                .findWarning("4:18-4:42:hint:" + Bundle.ERR_ToCommonsIsEmpty())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isEmpty(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+    @Test
+    public void testToIsEmpty3() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s != null && s.isEmpty();\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToEmptyFix.class)
+                .findWarning("4:18-4:42:hint:" + Bundle.ERR_ToCommonsIsEmpty())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isEmpty(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+    
+    @Test
+    public void testToIsEmpty4() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s != null && s.length() == 0;\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToEmptyFix.class)
+                .findWarning("4:18-4:46:hint:" + Bundle.ERR_ToCommonsIsEmpty())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isEmpty(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+
+}
diff --git a/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsNotBlankFixTest.java b/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsNotBlankFixTest.java
new file mode 100644
index 0000000..73ad138
--- /dev/null
+++ b/src/test/java/de/markiewb/netbeans/plugins/hints/apache/commons/ToCommonsIsNotBlankFixTest.java
@@ -0,0 +1,65 @@
+package de.markiewb.netbeans.plugins.hints.apache.commons;
+
+import org.apache.commons.lang.StringUtils;
+import org.junit.Test;
+import org.netbeans.modules.java.hints.test.api.HintTest;
+import org.openide.filesystems.FileUtil;
+
+/**
+ *
+ * @author markiewb
+ */
+public class ToCommonsIsNotBlankFixTest {
+
+    @Test
+    public void testToIsNotBlank1() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s != null && s.trim().length() > 0;\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToNotBlankFix.class)
+                .findWarning("4:18-4:52:hint:" + Bundle.ERR_ToCommonsIsNotBlank())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isNotBlank(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+
+    @Test
+    public void testToIsNotBlank2() throws Exception {
+        HintTest.create()
+                .input("package test;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=s != null && !s.trim().isEmpty();\n"
+                        + "    }\n"
+                        + "}\n")
+                .classpath(FileUtil.getArchiveRoot(StringUtils.class.getProtectionDomain().getCodeSource().getLocation()))
+                .run(ToNotBlankFix.class)
+                .findWarning("4:18-4:50:hint:" + Bundle.ERR_ToCommonsIsNotBlank())
+                .applyFix()
+                .assertCompilable()
+                .assertOutput("package test;\n"
+                        + "import org.apache.commons.lang.StringUtils;\n"
+                        + "public class Test {\n"
+                        + "    public static void main(String[] args) {\n"
+                        + "        String s=null;\n"
+                        + "        boolean a=StringUtils.isNotBlank(s);\n"
+                        + "    }\n"
+                        + "}\n");
+
+    }
+}
diff --git a/src/test/java/example/ToCommonsBlank.java b/src/test/java/example/ToCommonsBlank.java
new file mode 100644
index 0000000..c724da6
--- /dev/null
+++ b/src/test/java/example/ToCommonsBlank.java
@@ -0,0 +1,23 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package example;
+
+import org.apache.commons.lang.StringUtils;
+
+/**
+ *
+ * @author markiewb
+ */
+public class ToCommonsBlank {
+
+    public static void main(String[] args) {
+        String s = "";
+        boolean a = s == null || s.trim().length() == 0;
+        boolean b = s == null || s.trim().isEmpty();
+        boolean c = s != null && s.trim().length() == 0;
+        boolean d = s != null && s.trim().isEmpty();
+    }
+}
diff --git a/src/test/java/example/ToCommonsEmpty.java b/src/test/java/example/ToCommonsEmpty.java
new file mode 100644
index 0000000..8dcc6c7
--- /dev/null
+++ b/src/test/java/example/ToCommonsEmpty.java
@@ -0,0 +1,34 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package example;
+
+import org.apache.commons.lang.StringUtils;
+
+/**
+ *
+ * @author markiewb
+ */
+public class ToCommonsEmpty {
+
+    public static void main(String[] args) {
+        String s = "";
+
+        boolean a = s == null || s.length() == 0;
+        boolean b = s == null || s.isEmpty();
+        boolean c = s != null && s.isEmpty();
+        boolean d = s != null && s.length() == 0;
+    }
+    
+    public static void main2(String[] args) {
+        String s = "";
+
+        boolean a = s == null || s.length() == 0;
+        boolean b = s == null || s.isEmpty();
+        boolean c = s != null && s.isEmpty();
+        boolean d = s != null && s.length() == 0;
+    }
+
+}
diff --git a/src/test/java/example/ToCommonsNotBlank.java b/src/test/java/example/ToCommonsNotBlank.java
new file mode 100644
index 0000000..e27c54f
--- /dev/null
+++ b/src/test/java/example/ToCommonsNotBlank.java
@@ -0,0 +1,22 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package example;
+
+import org.apache.commons.lang.StringUtils;
+
+/**
+ *
+ * @author markiewb
+ */
+public class ToCommonsNotBlank {
+
+    public static void main(String[] args) {
+        String s = "";
+
+        boolean a = s != null && s.trim().length() > 0;
+        boolean b = s != null && !s.trim().isEmpty();
+    }
+}