JNI improvements

interface/java_binding/CMakeLists.txt

@@ -28,6 +28,7 @@ add_library(ktx-jni SHARED
     src/main/cpp/KtxTexture.cpp
     src/main/cpp/KtxTexture1.cpp
     src/main/cpp/KtxTexture2.cpp
+    src/main/cpp/KtxErrorCode.cpp
     src/main/cpp/libktx-jni.cpp
     ${CMAKE_CURRENT_BINARY_DIR}/ktx-jni.manifest
 )

interface/java_binding/pom.xml

@@ -144,6 +144,19 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-javadoc-plugin</artifactId>
+        <version>3.6.3</version>
+        <executions>
+          <execution>
+            <id>attach-javadocs</id>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
       <!--
       <plugin>
         <groupId>org.codehaus.mojo</groupId>

interface/java_binding/src/main/cpp/KtxErrorCode.cpp

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2024, Khronos Group and Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "libktx-jni.h"
+#include <iostream>
+
+extern "C" JNIEXPORT jstring JNICALL Java_org_khronos_ktx_KtxErrorCode_createString(JNIEnv *env, jclass, jint error)
+{
+  KTX_error_code errorNative = KTX_error_code(error);
+  const char* errorStringNative = ktxErrorString(errorNative);
+
+  // If this causes an OutOfMemoryError, then it will return
+  // 'null', with the OutOfMemoryError pending
+  jstring errorString = env->NewStringUTF(errorStringNative);
+  return errorString;
+}
+