Java: Add tests

java/ql/test/stubs/guava-29.0/com/google/common/base/Joiner.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2008 The Guava Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.common.base;
+
+import java.util.Iterator;
+import java.util.Map;
+
+public class Joiner {
+  public static Joiner on(String separator) {
+    return null;
+  }
+
+  public final StringBuilder appendTo(StringBuilder builder, Object first, Object second, Object... rest) {
+    return null;
+  }
+
+  public final String join(Object first, Object second, Object... rest) {
+    return null;
+  }
+
+  public Joiner useForNull(final String nullText) {
+    return null;
+  }
+
+  public Joiner skipNulls() {
+    return null;
+  }
+
+  public MapJoiner withKeyValueSeparator(String keyValueSeparator) {
+    return null;
+  }
+
+  public static final class MapJoiner {
+    public StringBuilder appendTo(StringBuilder builder, Map<?, ?> map) {
+      return null;
+    }
+
+    public String join(Map<?, ?> map) {
+      return null;
+    }
+
+    public MapJoiner useForNull(String nullText) {
+      return null;
+    }
+  }
+}

java/ql/test/stubs/guava-29.0/com/google/common/base/Splitter.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2009 The Guava Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.common.base;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+public final class Splitter {
+
+  public static Splitter on(final String separator) {
+    return null;
+  }
+
+  public Splitter omitEmptyStrings() {
+    return null;;
+  }
+
+  public Iterable<String> split(final CharSequence sequence) {
+    return null;
+  }
+
+  public List<String> splitToList(CharSequence sequence) {
+    return null;
+  }
+
+  public MapSplitter withKeyValueSeparator(String separator) {
+    return null;
+  }
+
+  public static final class MapSplitter {
+    public Map<String, String> split(CharSequence sequence) {
+      return null;
+    }
+  }
+}

java/ql/test/stubs/guava-29.0/com/google/common/base/Strings.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2010 The Guava Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.common.base;
+
+public final class Strings {
+  public static String nullToEmpty(String string) {
+    return null;
+  }
+
+  public static String emptyToNull(String string) {
+    return null;
+  }
+
+  public static boolean isNullOrEmpty(String string) {
+    return true;
+  }
+
+  public static String padStart(String string, int minLength, char padChar) {
+    return null;
+  }
+
+  public static String padEnd(String string, int minLength, char padChar) {
+    return null;
+  }
+
+  public static String repeat(String string, int count) {
+    return null;
+  }
+
+  public static String commonPrefix(CharSequence a, CharSequence b) {
+    return null;
+  }
+
+  public static String commonSuffix(CharSequence a, CharSequence b) {
+    return null;
+  }
+
+  public static String lenientFormat(String template, Object ... args) {
+    return null;
+  }
+}