Performance: Make inner classes static

test/se/vidstige/jadb/test/fakes/FakeAdbServer.java

@@ -91,7 +91,7 @@ public class FakeAdbServer implements AdbResponder {
         return new ArrayList<AdbDeviceResponder>(devices);
     }
 
-    private class DeviceResponder implements AdbDeviceResponder {
+    private static class DeviceResponder implements AdbDeviceResponder {
         private final String serial;
         private final String type;
         private List<FileExpectation> fileExpectations = new ArrayList<FileExpectation>();
@@ -155,7 +155,7 @@ public class FakeAdbServer implements AdbResponder {
             org.junit.Assert.assertEquals(0, shellExpectations.size());
         }
 
-        private class FileExpectation implements ExpectationBuilder {
+        private static class FileExpectation implements ExpectationBuilder {
             private final RemoteFile path;
             private byte[] content;
             private String failMessage;
@@ -199,7 +199,7 @@ public class FakeAdbServer implements AdbResponder {
             }
         }
 
-        public class ShellExpectation {
+        public static class ShellExpectation {
             private final String command;
             private byte[] stdout;
 

test/se/vidstige/jadb/test/fakes/FakeSubprocess.java

@@ -48,7 +48,7 @@ public class FakeSubprocess extends Subprocess {
         }
     }
 
-    private class Expectation {
+    private static class Expectation {
         private final String[] command;
         private final int exitValue;
 

test/se/vidstige/jadb/test/unit/PackageManagerTest.java

@@ -15,7 +15,7 @@ import java.util.List;
 import static org.junit.Assert.assertEquals;
 
 public class PackageManagerTest {
-    private final String DEVICE_SERIAL = "serial-123";
+    private static final String DEVICE_SERIAL = "serial-123";
 
     private FakeAdbServer server;
     private JadbConnection connection;

test/se/vidstige/jadb/test/unit/PropertyManagerTest.java

@@ -14,7 +14,7 @@ import java.util.Map;
 import static org.junit.Assert.assertEquals;
 
 public class PropertyManagerTest {
-    private final String DEVICE_SERIAL = "serial-123";
+    private static final String DEVICE_SERIAL = "serial-123";
 
     private FakeAdbServer server;
     private JadbConnection connection;