Java revamp. Need to finish working out the kinks in java transports

examples/env

@@ -40,6 +40,12 @@ if [ $ret -ne 0 ]; then
     export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$INSTALL_BASE/lib/
 fi
 
+echo $LD_LIBRARY_PATH | grep -q $INSTALL_BASE/lib64
+ret=$?
+if [ $ret -ne 0 ]; then
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$INSTALL_BASE/lib64/
+fi
+
 export ASAN_SYMBOLIZER_PATH=/usr/bin/llvm-symbolizer
 export ASAN_OPTIONS=check_initialization_order=1
 export CLASSPATH=$CLASSPATH:$INSTALL_BASE/share/java/zcm.jar

examples/java/bitfield-pub.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+java -ea example.apps.BitfieldPub

examples/java/bitfield-sub.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+java -ea example.apps.BitfieldSub

examples/java/example/apps/SimpleLogWriter.java

@@ -0,0 +1,44 @@
+package example.apps;
+
+import java.io.*;
+import zcm.zcm.*;
+
+/**
+ * A minimal example of writing events to a ZCM log file.
+ * This demonstrates the basic usage of the ZCM Log class for event logging.
+ */
+public class SimpleLogWriter {
+
+    public static void main(String[] args) {
+        try {
+            // Create a log file for writing
+            Log log = new Log("events.log", "rw");
+
+            // Create some sample events
+            Log.Event event1 = new Log.Event();
+            event1.eventNumber = 0;
+            event1.utime = System.currentTimeMillis() * 1000; // Convert to microseconds
+            event1.channel = "SENSOR_DATA";
+            event1.data = "temperature:25.3".getBytes();
+
+            Log.Event event2 = new Log.Event();
+            event2.eventNumber = 1;
+            event2.utime = System.currentTimeMillis() * 1000 + 1000000; // 1 second later
+            event2.channel = "STATUS";
+            event2.data = "system:online".getBytes();
+
+            // Write events to log
+            log.write(event1);
+            log.write(event2);
+
+            // Flush and close
+            log.flush();
+            log.close();
+
+            System.out.println("Successfully wrote 2 events to events.log");
+
+        } catch (IOException e) {
+            System.err.println("Error writing to log: " + e.getMessage());
+        }
+    }
+}

examples/java/pub.sh

@@ -1,3 +1,2 @@
 #!/bin/bash
-# warning, the classpaths set are relative so this script must be run from zcm/examples
-CLASSPATH=$CLASSPATH:build/java/example.jar:build/types/examplezcmtypes.jar:/usr/local/share/java/zcm.jar java -ea example.apps.Pub
+java -ea example.apps.Pub

examples/java/simple-log-writer.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+java -ea example.apps.SimpleLogWriter

examples/java/sub.sh

@@ -1,3 +1,2 @@
 #!/bin/bash
-# warning, the classpaths set are relative so this script must be run from zcm/examples
-CLASSPATH=$CLASSPATH:build/java/example.jar:build/types/examplezcmtypes.jar:/usr/local/share/java/zcm.jar java -ea example.apps.Sub
+java -ea example.apps.Sub