make sure file streams are closed by finally blocks

src/magic/data/CubeDefinitions.java

@@ -98,10 +98,13 @@ public class CubeDefinitions {
 				final String name=file.getName();
 				final int index=name.indexOf(CUBE_FILE_EXTENSION);
                     final InputStream fileInputStream=new FileInputStream(file);
+                try {
                     loadCubeDefinition(name.substring(0,index),fileInputStream);
+                } finally {
     				fileInputStream.close();
                 }
 			}
+		}
 		
 		System.err.println(cubeDefinitions.size()+" cube definitions");
 		for (final MagicCubeDefinition cubeDefinition : cubeDefinitions) {

src/magic/data/GeneralConfig.java

@@ -272,7 +272,12 @@ public class GeneralConfig {
 	public void load() {
 		try {
 			final Properties properties=new Properties();
-			properties.load(new FileInputStream(getConfigFile()));
+            final FileInputStream fis = new FileInputStream(getConfigFile());
+            try {
+                properties.load(fis);
+            } finally {
+                fis.close();
+            }
 			load(properties);
 		} catch (final IOException ex) {
             System.err.println("ERROR! unable to load " + getConfigFile());
@@ -307,7 +312,12 @@ public class GeneralConfig {
 		try {
 			final Properties properties=new Properties();
 			save(properties);
-			properties.store(new FileOutputStream(getConfigFile()),"General configuration");
+            final FileOutputStream fos = new FileOutputStream(getConfigFile()); 
+            try {
+    			properties.store(fos,"General configuration");
+            } finally {
+                fos.close();
+            }
             System.err.println("Saved general config");
 		} catch (final IOException ex) {
             System.err.println("ERROR! unable to save general config");

src/magic/data/IconImages.java

@@ -268,13 +268,16 @@ public class IconImages {
 			final byte data[]=new byte[1<<16];
 			int size=0;
 			final InputStream inputStream=IconImages.class.getResourceAsStream("icons/"+name);
+            try {
                 while (true) {
-				
                     final int len=inputStream.read(data,size,data.length-size);
                     if (len<0) {
                         break;
                     }
                     size+=len;
+                }
+            } finally {
+                inputStream.close();
             }
 			return new ImageIcon(Arrays.copyOf(data,size));
 		} catch (final Throwable th) {

src/magic/data/TournamentConfig.java

@@ -169,7 +169,12 @@ public class TournamentConfig {
 	public void load() {
 		try {
 			final Properties properties=new Properties();
-			properties.load(new FileInputStream(getConfigFile()));
+			final FileInputStream fis = new FileInputStream(getConfigFile());
+            try {
+                properties.load(fis);
+            } finally {
+                fis.close();
+            }
 			load(properties);
             System.err.println("Loaded tournament config");
 		} catch (final IOException ex) {
@@ -193,7 +198,12 @@ public class TournamentConfig {
 		try {
 			final Properties properties=new Properties();
 			save(properties);
-			properties.store(new FileOutputStream(getConfigFile()),"Tournament configuration");
+            final FileOutputStream fos = new FileOutputStream(getConfigFile());
+            try {
+    			properties.store(fos,"Tournament configuration");
+            } finally {
+                fos.close();
+            }
             System.err.println("Saved tournament config");
 		} catch (final IOException ex) {
             System.err.println("ERROR! Unable to save tournament config");