From a961001a4bd308d6616ab74be792a65f5f593cf8 Mon Sep 17 00:00:00 2001
From: Karl Tauber <karl@jformdesigner.com>
Date: Thu, 7 May 2020 14:45:22 +0200
Subject: [PATCH] reorder entries in JAR file to fix issues #13 and #93

---
 buildSrc/src/main/java/ReorderJarEntries.java | 80 +++++++++++++++++++
 flatlaf-core/build.gradle.kts                 |  4 +
 2 files changed, 84 insertions(+)
 create mode 100644 buildSrc/src/main/java/ReorderJarEntries.java

diff --git a/buildSrc/src/main/java/ReorderJarEntries.java b/buildSrc/src/main/java/ReorderJarEntries.java
new file mode 100644
index 00000000..457dae9b
--- /dev/null
+++ b/buildSrc/src/main/java/ReorderJarEntries.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2020 FormDev Software GmbH
+ *
+ * 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
+ *
+ *     https://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.
+ */
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Files;
+import java.nio.file.StandardOpenOption;
+import java.util.function.Predicate;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+/**
+ * Reorders entries in a JAR file so that .properties files are placed before .class files,
+ * which is necessary to workaround an issue in NetBeans 11.3 (and older).
+ * See issues #13 and #93.
+ *
+ * @author Karl Tauber
+ */
+public class ReorderJarEntries
+{
+	public static void reorderJarEntries( File jarFile )
+		throws IOException
+	{
+		ByteArrayOutputStream outStream = new ByteArrayOutputStream( (int) jarFile.length() + 1000 );
+
+		try( ZipOutputStream zipOutStream = new ZipOutputStream( outStream ) ) {
+			// 1st pass: copy .properties files
+			copyFiles( zipOutStream, jarFile, name -> name.endsWith( ".properties" ) );
+
+			// 2st pass: copy other files
+			copyFiles( zipOutStream, jarFile, name -> !name.endsWith( ".properties" ) );
+		}
+
+		// replace JAR
+		Files.write( jarFile.toPath(), outStream.toByteArray(),
+			StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING );
+	}
+
+	private static void copyFiles( ZipOutputStream dest, File jarFile, Predicate<String> filter )
+		throws IOException
+	{
+		try( ZipInputStream zipInputStream = new ZipInputStream( new FileInputStream( jarFile ) ) ) {
+			ZipEntry entry;
+			while( (entry = zipInputStream.getNextEntry()) != null ) {
+				if( filter.test( entry.getName() ) ) {
+					dest.putNextEntry( entry );
+					copyFile( zipInputStream, dest );
+				}
+			}
+		}
+	}
+
+	private static void copyFile( InputStream src, OutputStream dest )
+		throws IOException
+	{
+		byte[] buf = new byte[8*1024];
+		int len;
+		while( (len = src.read( buf )) > 0 )
+			dest.write( buf, 0, len );
+		dest.flush();
+	}
+}
diff --git a/flatlaf-core/build.gradle.kts b/flatlaf-core/build.gradle.kts
index c3a6d17a..c67e9066 100644
--- a/flatlaf-core/build.gradle.kts
+++ b/flatlaf-core/build.gradle.kts
@@ -67,6 +67,10 @@ tasks {
 				include( "module-info.class" )
 			}
 		}
+
+		doLast {
+			ReorderJarEntries.reorderJarEntries( outputs.files.singleFile );
+		}
 	}
 
 	javadoc {