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diff --git a/third_party/java/jopt-simple/src/test/java/joptsimple/ArgumentAcceptingOptionSpecTest.java b/third_party/java/jopt-simple/src/test/java/joptsimple/ArgumentAcceptingOptionSpecTest.java
new file mode 100644
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+++ b/third_party/java/jopt-simple/src/test/java/joptsimple/ArgumentAcceptingOptionSpecTest.java
@@ -0,0 +1,136 @@
+/*
+ The MIT License
+
+ Copyright (c) 2004-2015 Paul R. Holser, Jr.
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+package joptsimple;
+
+import org.infinitest.toolkit.Block;
+import org.junit.Test;
+
+import static org.infinitest.toolkit.Assertions.*;
+import static org.junit.Assert.*;
+
+/**
+ * @author <a href="mailto:pholser@alumni.rice.edu">Paul Holser</a>
+ */
+public class ArgumentAcceptingOptionSpecTest {
+    @Test( expected = NullPointerException.class )
+    public void requiredArgOfNullType() {
+        new RequiredArgumentOptionSpec<Void>( "a" ).ofType( null );
+    }
+
+    @Test( expected = NullPointerException.class )
+    public void optionalArgOfNullType() {
+        new OptionalArgumentOptionSpec<Void>( "verbose" ).ofType( null );
+    }
+
+    @Test( expected = IllegalArgumentException.class )
+    public void requiredArgOfNonValueType() {
+        new RequiredArgumentOptionSpec<Void>( "threshold" ).ofType( Object.class );
+    }
+
+    @Test( expected = IllegalArgumentException.class )
+    public void optionalArgOfNonValueType() {
+        new OptionalArgumentOptionSpec<Void>( "max" ).ofType( Object.class );
+    }
+
+    @Test
+    public void requiredArgOfValueTypeBasedOnValueOf() {
+        assertNoException( new Block() {
+            public void execute() {
+                new RequiredArgumentOptionSpec<Void>( "threshold" ).ofType( ValueOfHaver.class );
+            }
+        } );
+    }
+
+    @Test
+    public void optionalArgOfValueTypeBasedOnValueOf() {
+        assertNoException( new Block() {
+            public void execute() {
+                new OptionalArgumentOptionSpec<Void>( "abc" ).ofType( ValueOfHaver.class );
+            }
+        } );
+    }
+
+    @Test
+    public void requiredArgOfValueTypeBasedOnCtor() {
+        assertNoException( new Block() {
+            public void execute() {
+                new RequiredArgumentOptionSpec<Void>( "threshold" ).ofType( Ctor.class );
+            }
+        } );
+    }
+
+    @Test
+    public void optionalArgOfValueTypeBasedOnCtor() {
+        final OptionalArgumentOptionSpec<Ctor> spec = new OptionalArgumentOptionSpec<>( "abc" );
+
+        assertNoException( new Block() {
+            public void execute() {
+                spec.ofType( Ctor.class );
+                assertEquals( "foo", spec.convert( "foo" ).getS() );
+            }
+        } );
+    }
+
+    @Test( expected = IllegalArgumentException.class )
+    public void rejectsUnicodeZeroAsCharValueSeparatorForRequiredArgument() {
+        new RequiredArgumentOptionSpec<Void>( "a" ).withValuesSeparatedBy( '\u0000' );
+    }
+
+    @Test( expected = IllegalArgumentException.class )
+    public void rejectsUnicodeZeroAsCharValueSeparatorForOptionalArgument() {
+        new OptionalArgumentOptionSpec<Void>( "b" ).withValuesSeparatedBy( '\u0000' );
+    }
+
+    @Test( expected = IllegalArgumentException.class )
+    public void rejectsUnicodeZeroInStringValueSeparatorForRequiredArgument() {
+        new RequiredArgumentOptionSpec<Void>( "c" ).withValuesSeparatedBy( "::\u0000::" );
+    }
+
+    @Test( expected = IllegalArgumentException.class )
+    public void rejectsUnicodeZeroInStringValueSeparatorForOptionalArgument() {
+        new OptionalArgumentOptionSpec<Void>( "d" ).withValuesSeparatedBy( "::::\u0000" );
+    }
+
+    @Test( expected = NullPointerException.class )
+    public void rejectsNullConverter() {
+        new RequiredArgumentOptionSpec<Void>( "c" ).withValuesConvertedBy( null );
+    }
+
+    @Test( expected = NullPointerException.class )
+    public void rejectsNullDefaultValue() {
+        new RequiredArgumentOptionSpec<Integer>( "d" ).defaultsTo( null );
+    }
+
+    @Test( expected = NullPointerException.class )
+    public void rejectsNullDefaultValueRemainder() {
+        new RequiredArgumentOptionSpec<Integer>( "d" ).defaultsTo( 2, (Integer[]) null );
+    }
+
+    @Test( expected = NullPointerException.class )
+    public void rejectsNullInDefaultValueRemainder() {
+        new RequiredArgumentOptionSpec<Integer>( "d" ).defaultsTo( 2, 3, null );
+    }
+}