[test] add explicit Java inherited inspect specs

spec/java_integration/fixtures/types/DateLike.java

@@ -0,0 +1,11 @@
+package java_integration.fixtures.types;
+
+public class DateLike extends java.util.Date {
+
+    public DateLike() { super(); }
+
+    public Object inspect() {
+        return new StringBuilder("inspect:").append(System.identityHashCode(this));
+    }
+
+}

spec/java_integration/types/inspect_spec.rb

@@ -26,4 +26,18 @@
     expect(java.util.ArrayList.new([1, '2']).inspect).to eql '[1, 2]'
   end
 
+  class SubDate < java.util.Date; end
+
+  it 'inherits (Java) inspect' do
+    date = SubDate.new(0)
+    expect(date.inspect).to include '1970'
+  end
+
+  it 'overrides custom (Java) inspect' do
+    date = Java::java_integration.fixtures.types.DateLike.new
+    inspect = date.inspect
+    expect(inspect).to be_a java.lang.StringBuilder
+    expect(inspect.to_s).to match /inspect:.*/
+  end
+
 end