Side-grade Guava to the android variant.

See java-json-tools/jackson-coreutils/issues/12.

build.gradle

@@ -54,7 +54,7 @@ dependencies {
  */
 dependencies {
     compile(group: "com.fasterxml.jackson.core", name: "jackson-databind", version: "2.9.9");
-    compile(group: "com.google.guava", name: "guava", version: "25.1-jre");
+    compile(group: "com.google.guava", name: "guava", version: "25.1-android");
     compile(group: "com.github.java-json-tools", name: "jackson-coreutils", version: "1.10");
     compile(group: "com.github.fge", name: "uri-template", version: "0.9");
     // FIXME: no javadoc
@@ -75,7 +75,7 @@ javadoc.options.links("http://docs.oracle.com/javase/7/docs/api/");
 javadoc.options.links("https://www.javadoc.io/doc/com.google.code.findbugs/jsr305/3.0.1/");
 javadoc.options.links("https://fasterxml.github.io/jackson-databind/javadoc/2.2.0/");
 javadoc.options.links("https://fasterxml.github.io/jackson-core/javadoc/2.2.0/");
-javadoc.options.links("https://www.javadoc.io/doc/com.google.guava/guava/25.1-jre/");
+javadoc.options.links("https://www.javadoc.io/doc/com.google.guava/guava/25.1-android/");
 javadoc.options.links("https://java-json-tools.github.io/btf/");
 javadoc.options.links("https://java-json-tools.github.io/msg-simple/");
 javadoc.options.links("https://java-json-tools.github.io/jackson-coreutils/");