fix #1068 (nbt): CompoundBinaryTag#getBoolean ignores false values when default value is true

Author: kashike

nbt/src/main/java/net/kyori/adventure/nbt/CompoundBinaryTag.java

@@ -125,8 +125,12 @@ default boolean getBoolean(final @NotNull String key) {
    * @since 4.0.0
    */
   default boolean getBoolean(final @NotNull String key, final boolean defaultValue) {
-    // != 0 might look weird, but it is what vanilla does
-    return this.getByte(key) != 0 || defaultValue;
+    final BinaryTag tag = this.get(key);
+    if (tag instanceof ByteBinaryTag) {
+      // != 0 might look weird, but it is what vanilla does
+      return ((ByteBinaryTag) tag).value() != 0;
+    }
+    return defaultValue;
   }
 
   /**

nbt/src/test/java/net/kyori/adventure/nbt/CompoundBinaryTagTest.java

@@ -0,0 +1,45 @@
+/*
+ * This file is part of adventure, licensed under the MIT License.
+ *
+ * Copyright (c) 2017-2024 KyoriPowered
+ *
+ * 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 net.kyori.adventure.nbt;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class CompoundBinaryTagTest {
+  @DisplayName("https://github.com/KyoriPowered/adventure/issues/1068")
+  @Test
+  void test1068() {
+    final CompoundBinaryTag tagWithValue = CompoundBinaryTag.builder()
+      .putBoolean("test", false)
+      .build();
+    final CompoundBinaryTag tagWithoutValue = CompoundBinaryTag.builder()
+      .build();
+
+    assertFalse(tagWithValue.getBoolean("test", true));
+    assertTrue(tagWithoutValue.getBoolean("test", true));
+  }
+}