Fix compilation bug in ZipChemCompProvider

sbliven · sbliven · commit 8db52cb6ccf1 · 2020-05-18T10:25:19.000+02:00
With some JDKs (openjdk-11) there is an (undocumented?)
`java.nio.file.FileSystems.newFileSystem(Path,Map&lt;String,?&gt;)`
method. This patch disambiguates which override to use for null.
diff --git a/biojava-structure/src/main/java/org/biojava/nbio/structure/io/mmcif/ZipChemCompProvider.java b/biojava-structure/src/main/java/org/biojava/nbio/structure/io/mmcif/ZipChemCompProvider.java
@@ -236,7 +236,7 @@ private synchronized ChemComp getFromZip(String recordName) {
 		final String filename = "chemcomp/" + recordName+".cif.gz";
 
 		// try with resources block to read from the filesystem.
-		try (FileSystem fs = FileSystems.newFileSystem(m_zipFile, null)) {
+		try (FileSystem fs = FileSystems.newFileSystem(m_zipFile, (ClassLoader) null)) {
 			Path cif = fs.getPath(filename);
 
 			if (Files.exists(cif)) {
