diff --git a/pom.xml b/pom.xml
index bcdc05f..e5a8571 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>jp.riken.neurodata.tools.BioFormatsImageInfo</groupId>
   <artifactId>bioformats-imageinfo</artifactId>
-  <version>1.1.1</version>
+  <version>1.1.2</version>
 
   <name>bioformats-imageinfo</name>
   <url>https://neurodata.riken.jp</url>
@@ -130,6 +130,7 @@
       <layout>default</layout>
     </pluginRepository>
   </pluginRepositories>
+
   <repositories>
     <repository>
       <id>central</id>
diff --git a/src/main/java/jp/riken/neurodata/tools/BioFormatsImageInfo.java b/src/main/java/jp/riken/neurodata/tools/BioFormatsImageInfo.java
index d922c4f..fc5b612 100644
--- a/src/main/java/jp/riken/neurodata/tools/BioFormatsImageInfo.java
+++ b/src/main/java/jp/riken/neurodata/tools/BioFormatsImageInfo.java
@@ -259,9 +259,9 @@ public class BioFormatsImageInfo {
                 DebugTools.enableLogging("ERROR");
                 format = readMetadata(path, metadata);
                 BioFormatsImageThumbnail.readThumbnail(path, thumbnail);
-            } catch (BioFormatsImageException e) {
+            } catch (Throwable t) {
                 status = false;
-                message = e.getMessage();
+                message = t.getMessage();
                 metadata.clear();
                 thumbnail.clear();
             }
diff --git a/src/main/java/jp/riken/neurodata/tools/BioFormatsImageThumbnail.java b/src/main/java/jp/riken/neurodata/tools/BioFormatsImageThumbnail.java
index 19a6504..0b7b5be 100644
--- a/src/main/java/jp/riken/neurodata/tools/BioFormatsImageThumbnail.java
+++ b/src/main/java/jp/riken/neurodata/tools/BioFormatsImageThumbnail.java
@@ -108,7 +108,10 @@ public class BioFormatsImageThumbnail {
                 final ImageOutputStream ios = ImageIO.createImageOutputStream(baos);) {
             final ImageWriter writer = ImageIO.getImageWritersByFormatName("png").next();
             final ImageWriteParam param = writer.getDefaultWriteParam();
-            param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
+            if (param.canWriteCompressed()) {
+                param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
+                param.setCompressionQuality(0.0f);
+            }
             writer.setOutput(ios);
             writer.write(null, new IIOImage(image, null, null), param);
             writer.dispose();
@@ -169,13 +172,13 @@ public class BioFormatsImageThumbnail {
             // System.out.println("resolution: " + reader.getResolutionCount());
             // System.out.println("thubmail series: " + series);
             ret = reader.openThumbImage(no);
-        } catch (final Throwable e) {
-            for (Throwable t = e; t != null; t = t.getCause()) {
+        } catch (final Throwable t) {
+            for (Throwable e = t; e != null; e = e.getCause()) {
                 if (t instanceof OutOfMemoryError) {
                     throw new BioFormatsImageException("out of memory");
                 }
             }
-            throw new BioFormatsImageException(e);
+            throw new BioFormatsImageException(t);
         } finally {
             try {
                 reader.close();
@@ -226,7 +229,7 @@ public class BioFormatsImageThumbnail {
             thumbnail.put("height", height);
             thumbnail.put("mimeType", mimeType);
             thumbnail.put("url", dataUri);
-        } catch (final BioFormatsImageException e) {
+        } catch (final Throwable t) {
             // ignore
             ret = false;
         }
@@ -234,7 +237,7 @@ public class BioFormatsImageThumbnail {
         return ret;
     }
 
-    public static void main(final String[] args) throws BioFormatsImageException {
+    public static void main(final String[] args) {
         if (args.length != 1) {
             System.out.println("filename argument required");
             System.exit(1);
@@ -248,8 +251,8 @@ public class BioFormatsImageThumbnail {
             final String dataUri = getDataUri(image, "image/" + format);
             System.out.println(dataUri);
             // saveFile(dataUri, "/var/tmp/thumbnail." + format);
-        } catch (final BioFormatsImageException e) {
-            System.out.println(e.getMessage());
+        } catch (final Throwable t) {
+            System.out.println(t.getMessage());
             System.exit(1);
         }
     }