SNOW-748294 Fix IncidentUtilLatestIT tests (#1319)

* SNOW-748294 Fix IncidentUtilLatestIT tests

src/main/java/net/snowflake/client/core/IncidentUtil.java

@@ -14,10 +14,7 @@
 import com.yammer.metrics.core.Clock;
 import com.yammer.metrics.core.VirtualMachineMetrics;
 import com.yammer.metrics.reporting.MetricsServlet;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.PrintWriter;
+import java.io.*;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 import java.util.zip.GZIPOutputStream;
@@ -71,6 +68,8 @@ public static String oneLiner(String prefix, Throwable thrown) {
   public static void dumpVmMetrics(String incidentId) {
     PrintWriter writer = null;
     try {
+      File dmpFileDirectory = new File(EventUtil.getDumpPathPrefix());
+      dmpFileDirectory.mkdirs();
       String dumpFile =
           EventUtil.getDumpPathPrefix() + "/" + INC_DUMP_FILE_NAME + incidentId + INC_DUMP_FILE_EXT;
 
@@ -197,7 +196,12 @@ private static void writeVmMetrics(JsonGenerator json, VirtualMachineMetrics vm)
       json.writeNumberField("thread_count", vm.threadCount());
       json.writeNumberField("current_time", Clock.defaultClock().time());
       json.writeNumberField("uptime", vm.uptime());
-      json.writeNumberField("fd_usage", vm.fileDescriptorUsage());
+      try {
+        // This function can throw an error with java 11.
+        json.writeNumberField("fd_usage", vm.fileDescriptorUsage());
+      } catch (Exception e) {
+        logger.info("Error writing fd_usage", e);
+      }
 
       json.writeFieldName("thread-states");
       json.writeStartObject();

src/test/java/net/snowflake/client/core/IncidentUtilLatestIT.java

@@ -4,9 +4,10 @@
 
 package net.snowflake.client.core;
 
+import static net.snowflake.client.core.IncidentUtil.INC_DUMP_FILE_EXT;
+import static net.snowflake.client.core.IncidentUtil.INC_DUMP_FILE_NAME;
 import static org.junit.Assert.assertEquals;
 
-import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.StringWriter;
@@ -33,16 +34,20 @@ public void testOneLinerDescription() {
   /** Tests dumping JVM metrics for the current process */
   @Test
   public void testDumpVmMetrics() throws IOException {
-    File targetVMFile = new File(getFullPathFileInResource("snowflake_dumps/" + FILE_NAME));
-    int index = targetVMFile.getPath().indexOf("snowflake_dumps");
-    String dumpPath = targetVMFile.getPath().substring(0, index - 1);
+    String dumpPath = tmpFolder.newFolder().getCanonicalPath();
     System.setProperty("snowflake.dump_path", dumpPath);
 
+    String incidentId = "123456";
+
     // write the VM metrics to the dump file
-    IncidentUtil.dumpVmMetrics("123456");
+    IncidentUtil.dumpVmMetrics(incidentId);
+
+    // Get location of where file will be written
+    String targetVMFileLocation =
+        EventUtil.getDumpPathPrefix() + "/" + INC_DUMP_FILE_NAME + incidentId + INC_DUMP_FILE_EXT;
 
     // Read back the file contents
-    GZIPInputStream gzip = new GZIPInputStream(new FileInputStream(targetVMFile));
+    GZIPInputStream gzip = new GZIPInputStream(new FileInputStream(targetVMFileLocation));
     StringWriter sWriter = new StringWriter();
     IOUtils.copy(gzip, sWriter, "UTF-8");
     String output = sWriter.toString();