diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/DateIntervalFormatTest.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/DateIntervalFormatTest.java
index 8fd76a414c7..0a67fdb207b 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/DateIntervalFormatTest.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/DateIntervalFormatTest.java
@@ -38,10 +38,10 @@ import com.ibm.icu.text.DateIntervalInfo.PatternInfo;
 import com.ibm.icu.text.SimpleDateFormat;
 import com.ibm.icu.util.Calendar;
 import com.ibm.icu.util.DateInterval;
+import com.ibm.icu.util.JapaneseCalendar;
 import com.ibm.icu.util.Output;
 import com.ibm.icu.util.TimeZone;
 import com.ibm.icu.util.ULocale;
-import com.ibm.icu.util.JapaneseCalendar;
 
 @RunWith(JUnit4.class)
 public class DateIntervalFormatTest extends TestFmwk {
diff --git a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/number/ExhaustiveNumberTest.java b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/number/ExhaustiveNumberTest.java
index 6a679eff2b3..69947cd82f7 100644
--- a/icu4j/main/tests/core/src/com/ibm/icu/dev/test/number/ExhaustiveNumberTest.java
+++ b/icu4j/main/tests/core/src/com/ibm/icu/dev/test/number/ExhaustiveNumberTest.java
@@ -15,8 +15,8 @@ import com.ibm.icu.impl.StaticUnicodeSets.Key;
 import com.ibm.icu.impl.number.DecimalQuantity_DualStorageBCD;
 import com.ibm.icu.lang.UCharacter;
 import com.ibm.icu.number.NumberFormatter;
-import com.ibm.icu.number.UnlocalizedNumberFormatter;
 import com.ibm.icu.number.Precision;
+import com.ibm.icu.number.UnlocalizedNumberFormatter;
 import com.ibm.icu.text.DecimalFormatSymbols;
 import com.ibm.icu.text.UnicodeSet;
 import com.ibm.icu.util.MeasureUnit;
diff --git a/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/CollationPerformanceTest.java b/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/CollationPerformanceTest.java
index 55db9a2bdb3..7fcdcb3d3f2 100644
--- a/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/CollationPerformanceTest.java
+++ b/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/CollationPerformanceTest.java
@@ -9,10 +9,19 @@
 
 package com.ibm.icu.dev.test.perf;
 
-import com.ibm.icu.text.*;
-import java.util.*;
-import java.io.*;
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Comparator;
+
 import com.ibm.icu.impl.LocaleUtility;
+import com.ibm.icu.text.CollationElementIterator;
+import com.ibm.icu.text.CollationKey;
+import com.ibm.icu.text.Normalizer;
+import com.ibm.icu.text.NumberFormat;
+import com.ibm.icu.text.RuleBasedCollator;
 
 public class CollationPerformanceTest {
     static final String usageString = 
diff --git a/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/RBBIPerf.java b/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/RBBIPerf.java
index 7e3e657f202..60c6227b2b9 100644
--- a/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/RBBIPerf.java
+++ b/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/RBBIPerf.java
@@ -7,13 +7,15 @@
 **********************************************************************
 */
 package com.ibm.icu.dev.test.perf;
-import com.ibm.icu.text.*;
 import java.io.FileInputStream;
+import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
-import java.io.IOException;
 import java.text.BreakIterator;
 
+import com.ibm.icu.text.RuleBasedBreakIterator;
+import com.ibm.icu.text.UTF16;
+
 /**
  * A class for testing UnicodeSet performance.
  *
diff --git a/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/UnicodeSetPerf.java b/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/UnicodeSetPerf.java
index d6e27441aaf..70af3e291da 100644
--- a/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/UnicodeSetPerf.java
+++ b/icu4j/perf-tests/src/com/ibm/icu/dev/test/perf/UnicodeSetPerf.java
@@ -7,10 +7,12 @@
 **********************************************************************
 */
 package com.ibm.icu.dev.test.perf;
-import com.ibm.icu.text.*;
 import java.util.HashSet;
 import java.util.Iterator;
 
+import com.ibm.icu.text.UnicodeSet;
+import com.ibm.icu.text.UnicodeSetIterator;
+
 /**
  * A class for testing UnicodeSet performance.
  *