[RocksJava] Java sample bugfix

One of the latest commits broke the sample code. This
resolves the introduced bug.

java/samples/src/main/java/RocksDBSample.java

@@ -57,38 +57,35 @@ public class RocksDBSample {
     assert(options.compressionType() == CompressionType.SNAPPY_COMPRESSION);
     assert(options.compactionStyle() == CompactionStyle.UNIVERSAL);
 
-    try {
-      assert(options.memTableFactoryName().equals("SkipListFactory"));
-      options.setMemTableConfig(
-          new HashSkipListMemTableConfig()
-              .setHeight(4)
-              .setBranchingFactor(4)
-              .setBucketCount(2000000));
-      assert(options.memTableFactoryName().equals("HashSkipListRepFactory"));
-
-      options.setMemTableConfig(
-          new HashLinkedListMemTableConfig()
-              .setBucketCount(100000));
-      assert(options.memTableFactoryName().equals("HashLinkedListRepFactory"));
-
-      options.setMemTableConfig(
-          new VectorMemTableConfig().setReservedSize(10000));
-      assert(options.memTableFactoryName().equals("VectorRepFactory"));
-
-      options.setMemTableConfig(new SkipListMemTableConfig());
-      assert(options.memTableFactoryName().equals("SkipListFactory"));
-
-      options.setTableFormatConfig(new PlainTableConfig());
-      // Plain-Table requires mmap read
-      options.setAllowMmapReads(true);
-      assert(options.tableFactoryName().equals("PlainTable"));
-
-      options.setRateLimiterConfig(new GenericRateLimiterConfig(10000000,
-          10000, 10));
-      options.setRateLimiterConfig(new GenericRateLimiterConfig(10000000));
-    } catch (RocksDBException e) {
-      assert(false);
-    }
+    assert(options.memTableFactoryName().equals("SkipListFactory"));
+    options.setMemTableConfig(
+        new HashSkipListMemTableConfig()
+            .setHeight(4)
+            .setBranchingFactor(4)
+            .setBucketCount(2000000));
+    assert(options.memTableFactoryName().equals("HashSkipListRepFactory"));
+
+    options.setMemTableConfig(
+        new HashLinkedListMemTableConfig()
+            .setBucketCount(100000));
+    assert(options.memTableFactoryName().equals("HashLinkedListRepFactory"));
+
+    options.setMemTableConfig(
+        new VectorMemTableConfig().setReservedSize(10000));
+    assert(options.memTableFactoryName().equals("VectorRepFactory"));
+
+    options.setMemTableConfig(new SkipListMemTableConfig());
+    assert(options.memTableFactoryName().equals("SkipListFactory"));
+
+    options.setTableFormatConfig(new PlainTableConfig());
+    // Plain-Table requires mmap read
+    options.setAllowMmapReads(true);
+    assert(options.tableFactoryName().equals("PlainTable"));
+
+    options.setRateLimiterConfig(new GenericRateLimiterConfig(10000000,
+        10000, 10));
+    options.setRateLimiterConfig(new GenericRateLimiterConfig(10000000));
+
 
     Filter bloomFilter = new BloomFilter(10);
     BlockBasedTableConfig table_options = new BlockBasedTableConfig();