Compile with JDK8 to allow using the library from java 8 projects

.travis.yml

@@ -1,3 +1,3 @@
 language: java
-jdk:
-  - openjdk11
+dist: trusty
+jdk: openjdk8

build.gradle

@@ -1,33 +1,9 @@
 group 'io.lindstrom'
 version '1.0-SNAPSHOT'
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.10.3'
-    distributionUrl = "https://services.gradle.org/distributions/gradle-$gradleVersion-all.zip"
-}
-
 allprojects {
     tasks.withType(JavaCompile) {
         options.encoding = 'UTF-8'
         options.compilerArgs << "-Werror" << "-Xlint:all" << "-Xlint:-processing" << "-Xlint:-serial"
     }
 }
-
-subprojects {
-    afterEvaluate {
-        javadoc {
-            options.addStringOption('-module-path', classpath.asPath)
-            options.addStringOption('-html5')
-        }
-
-        compileJava {
-            inputs.property("moduleName", moduleName)
-            doFirst {
-                options.compilerArgs = [
-                        '--module-path', classpath.asPath,
-                ]
-                classpath = files()
-            }
-        }
-    }
-}

parser/build.gradle

@@ -8,14 +8,14 @@ apply plugin: 'signing'
 
 ext.moduleName = 'io.lindstrom.mpd'
 
-sourceCompatibility = 11
+sourceCompatibility = 8
 
 repositories {
     mavenCentral()
 }
 
 dependencies {
-    compile 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.9.5'
+    compile 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.10.0'
 
     testImplementation("org.junit.jupiter:junit-jupiter-api:5.5.1")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.5.1")

parser/src/main/java/io/lindstrom/mpd/MPDParser.java

@@ -62,8 +62,8 @@ public static ObjectMapper defaultObjectMapper() {
         return new XmlMapper(new XmlFactory(new WstxInputFactory(), new WstxPrefixedOutputFactory()), module)
                 .enable(SerializationFeature.INDENT_OUTPUT)
                 .setSerializationInclusion(JsonInclude.Include.NON_NULL)
-                .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, true)
-                .configure(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_USING_DEFAULT_VALUE, true)
+                .disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES)
+                .enable(DeserializationFeature.READ_UNKNOWN_ENUM_VALUES_USING_DEFAULT_VALUE)
                 .setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY)
                 .setVisibility(PropertyAccessor.GETTER, JsonAutoDetect.Visibility.NONE);
     }

parser/src/main/java/io/lindstrom/mpd/support/DurationDeserializer.java

@@ -49,7 +49,7 @@ static long parseFraction(CharSequence text, int start, int end, boolean negate)
             end = start + 9;
         }
 
-        long fraction = Long.parseLong(text, start, end, 10);
+        long fraction = Long.parseLong(text.subSequence(start, end).toString());
 
         // for number strings smaller than 9 digits, interpret as if there were trailing zeros
         for (int i = end - start; i < 9; i++) {
@@ -88,27 +88,27 @@ private Duration parse(String text) {
         long nanos = 0;
 
         if (yearStart >= 0) {
-            years = Integer.parseInt(text, yearStart, yearEnd, 10);
+            years = Integer.parseInt(text.substring(yearStart, yearEnd));
         }
 
         if (monthStart >= 0) {
-            months = Integer.parseInt(text, monthStart, monthEnd, 10);
+            months = Integer.parseInt(text.substring(monthStart, monthEnd));
         }
 
         if (dayStart >= 0) {
-            days = Integer.parseInt(text, dayStart, dayEnd, 10);
+            days = Integer.parseInt(text.substring(dayStart, dayEnd));
         }
 
         if (hourStart >= 0) {
-            hoursAsSecs = Math.multiplyExact(3600L, Integer.parseInt(text, hourStart, hourEnd, 10));
+            hoursAsSecs = Math.multiplyExact(3600L, Integer.parseInt(text.substring(hourStart, hourEnd)));
         }
 
         if (minuteStart >= 0) {
-            minutesAsSecs = Math.multiplyExact(60L, Integer.parseInt(text, minuteStart, minuteEnd, 10));
+            minutesAsSecs = Math.multiplyExact(60L, Integer.parseInt(text.substring(minuteStart, minuteEnd)));
         }
 
         if (secondStart >= 0) {
-            seconds = Integer.parseInt(text, secondStart, secondEnd, 10);
+            seconds = Integer.parseInt(text.substring(secondStart, secondEnd), 10);
             boolean negativeSecs = text.charAt(secondStart) == '-';
             nanos = parseFraction(text, fractionStart, fractionEnd, negativeSecs);
         }

parser/src/main/java/io/lindstrom/mpd/support/Utils.java

@@ -20,6 +20,7 @@ public static <T> List<T> unmodifiableList(List<T> list) {
     }
 
     @SafeVarargs
+    @SuppressWarnings("varargs")
     public static <T> List<T> varargsToList(T head, T ...tail) {
         if (tail.length == 0) {
             return Collections.singletonList(head);

validator/build.gradle

@@ -6,7 +6,7 @@ apply plugin: 'java'
 ext.moduleName = 'io.lindstrom.mpd.validator'
 
 
-sourceCompatibility = 11
+sourceCompatibility = 8
 
 repositories {
     mavenCentral()

validator/src/test/java/io/lindstrom/mpd/validator/ValidatorValidator.java

@@ -45,7 +45,7 @@ static List<List<Path>> params() throws IOException {
                     .map(input -> {
                         String resultFileName = "result_" + input.getFileName().toString().replace(".mpd", ".xml");
                         Path output = input.getParent().resolveSibling("output/" + resultFileName);
-                        return List.of(input, output);
+                        return Arrays.asList(input, output);
                     }).collect(Collectors.toList());
         }
     }