Enabled more checkstyle rules

3 files changed, 56 insertions, 2 deletions

diff --git a/config/checkstyle/checkstyle.xml b/config/checkstyle/checkstyle.xml
index 4bc3d0b51..0a5b47eb8 100644
--- a/config/checkstyle/checkstyle.xml
+++ b/config/checkstyle/checkstyle.xml
@@ -10,6 +10,7 @@
     <property name="fileExtensions" value="java, xml"/>
 
     <module name="TreeWalker">
+        <module name="OuterTypeFilename"/>
         <module name="AvoidEscapedUnicodeCharacters">
             <property name="allowEscapesForControlCharacters" value="true"/>
             <property name="allowByTailComment" value="true"/>
@@ -17,12 +18,65 @@
         </module>
         <module name="AvoidStarImport"/>
         <module name="OneTopLevelClass"/>
+        <module name="NoLineWrap"/>
+        <module name="EmptyBlock">
+            <property name="option" value="TEXT"/>
+            <property name="tokens"
+                      value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
+        </module>
         <module name="OneStatementPerLine"/>
+        <module name="FallThrough"/>
+        <module name="UpperEll"/>
         <module name="ModifierOrder"/>
         <module name="PackageName">
             <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
             <message key="name.invalidPattern"
              value="Package name ''{0}'' must match pattern ''{1}''."/>
         </module>
+        <module name="TypeName">
+            <message key="name.invalidPattern"
+                     value="Type name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="CatchParameterName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
+            <message key="name.invalidPattern"
+                     value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="ClassTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+            <message key="name.invalidPattern"
+                     value="Class type name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="MethodTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+            <message key="name.invalidPattern"
+                     value="Method type name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="InterfaceTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
+            <message key="name.invalidPattern"
+                     value="Interface type name ''{0}'' must match pattern ''{1}''."/>
+        </module>
+        <module name="NoFinalizer"/>
+        <module name="GenericWhitespace">
+            <message key="ws.followed"
+                     value="GenericWhitespace ''{0}'' is followed by whitespace."/>
+            <message key="ws.preceded"
+                     value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
+            <message key="ws.illegalFollow"
+                     value="GenericWhitespace ''{0}'' should followed by whitespace."/>
+            <message key="ws.notPreceded"
+                     value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
+        </module>
+        <module name="AnnotationLocation">
+            <property name="id" value="AnnotationLocationMostCases"/>
+            <property name="tokens"
+                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/>
+        </module>
+        <module name="AnnotationLocation">
+            <property name="id" value="AnnotationLocationVariables"/>
+            <property name="tokens" value="VARIABLE_DEF"/>
+            <property name="allowSamelineMultipleAnnotations" value="true"/>
+        </module>
     </module>
 </module>
diff --git a/core/src/main/java/de/danoeh/antennapod/core/util/Optional.java b/core/src/main/java/de/danoeh/antennapod/core/util/Optional.java
index 0fe11ec53..37f12c01c 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/util/Optional.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/util/Optional.java
@@ -77,7 +77,7 @@ public final class Optional<T> {
      * @param <T> Type of the non-existent value
      * @return an empty {@code Optional}
      */
-    public static<T> Optional<T> empty() {
+    public static <T> Optional<T> empty() {
         @SuppressWarnings("unchecked")
         Optional<T> t = (Optional<T>) EMPTY;
         return t;
diff --git a/core/src/main/java/de/danoeh/antennapod/core/util/id3reader/ChapterReader.java b/core/src/main/java/de/danoeh/antennapod/core/util/id3reader/ChapterReader.java
index d22d08e09..a3f747e09 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/util/id3reader/ChapterReader.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/util/id3reader/ChapterReader.java
@@ -72,7 +72,7 @@ public class ChapterReader extends ID3Reader {
 						String decodedLink = URLDecoder.decode(link.toString(), "UTF-8");
 						currentChapter.setLink(decodedLink);
 						Log.d(TAG, "Found link: " + currentChapter.getLink());
-					} catch (IllegalArgumentException _iae) {
+					} catch (IllegalArgumentException iae) {
 						Log.w(TAG, "Bad URL found in ID3 data");
 					}